Igor Altsybeev

St. Petersburg State University

H-index: 126

Europe-Russia

About Igor Altsybeev

Igor Altsybeev, With an exceptional h-index of 126 and a recent h-index of 97 (since 2020), a distinguished researcher at St. Petersburg State University,

His recent articles reflect a diverse array of research interests and contributions to the field:

resonance production in Pb-Pb collisions at TeV

Measurement of beauty-quark production in pp collisions at TeV via non-prompt D mesons

System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider

Systematic study of flow vector decorrelation in TeV Pb-Pb collisions

Femtoscopic correlations of identical charged pions and kaons in collisions at TeV with event-shape selection

Suppression in Pb-Pb Collisions at the LHC

Measurement of baryon production and branching-fraction ratio in pp collisions at = 13 TeV

Systematic study of flow vector decorrelation in√ sNN= 5.02 TeV Pb–Pb collisions

Igor Altsybeev Information

University	St. Petersburg State University
Position	___
Citations(all)	73685
Citations(since 2020)	34978
Cited By	42134
hIndex(all)	126
hIndex(since 2020)	97
i10Index(all)	335
i10Index(since 2020)	323
Email	Access Email
University Profile Page	St. Petersburg State University

Top articles of Igor Altsybeev

resonance production in Pb-Pb collisions at TeV

Authors

S Acharya,D Adamová,G Aglieri Rinella,M Agnello,N Agrawal,Z Ahammed,S Ahmad,SU Ahn,I Ahuja,A Akindinov,M Al-Turany,D Aleksandrov,B Alessandro,HM Alfanda,R Alfaro Molina,B Ali,A Alici,N Alizadehvandchali,A Alkin,J Alme,G Alocco,T Alt,AR Altamura,I Altsybeev,JR Alvarado,MN Anaam,C Andrei,N Andreou,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,JGMCA Arneiro,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,H Baba,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,B Barman,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,YAV Beltran,G Bencedi,S Beole,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,AP Bigot,A Bilandzic,G Biro,S Biswas,N Bize,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,F Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,AG Borquez Carcamo,H Bossi,E Botta,YEM Bouziani,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,MD Buckland,D Budnikov,H Buesching,S Bufalino,P Buhler,N Burmasov,Z Buthelezi,A Bylinkin,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,SL Cantway

Journal

Physical Review C

Published Date

2024/4/3

The production of K*(892)±meson resonance is measured at midrapidity (| y|< 0.5) in Pb− Pb collisions at s N N= 5.02 TeV using the ALICE detector at the CERN Large Hadron Collider. The resonance is reconstructed via its hadronic decay channel K*(892)±→ K S 0 π±. The transverse momentum distributions are obtained for various centrality intervals in the p T range of 0.4− 16 GeV/c. Measurements of integrated yields, mean transverse momenta, and particle yield ratios are reported and found to be consistent with previous ALICE measurements for K*(892) 0 within uncertainties. The p T-integrated yield ratio 2 K*(892)±/(K++ K−) in central Pb− Pb collisions shows a significant suppression at a level of 9.3 σ relative to p p collisions. Thermal model calculations result in an overprediction of the particle yield ratio. Although both hadron resonance gas in partial chemical equilibrium (HRG-PCE) and music+ smash …

Measurement of beauty-quark production in pp collisions at TeV via non-prompt D mesons

Authors

Shreyasi Acharya,Dagmar Adamova,Apar Agarwal,Gianluca Aglieri Rinella,Luca Aglietta,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Valentina Akishina,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Masud Alfanda,Jose Ruben Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,Jesus Ricardo Alvarado Garcia,Mustafa Anaam,Cristian Andrei,Nicodemos Andreou,Anton Andronic,Evgeny Andronov,Venelin Anguelov,Federico Antinori,Pietro Antonioli,Nicole Apadula,Laurent Bernard Aphecetche,Harald Appelshaeuser,Carolina Arata,Silvia Arcelli,Mauro Aresti,Roberta Arnaldi,Jhoao Gabriel Martins Campos Almeida Arneiro,Ionut Cristian Arsene,Mesut Arslandok,Andre Augustinus,Ralf Peter Averbeck,Mohd Danish Azmi,Hitoshi Baba,Angela Badala,Joonsuk Bae,Yongwook Baek,Xiaozhi Bai,Raphaelle Marie Bailhache,Yoshini Bailung,Renu Bala,Alessandro Balbino,Alberto Baldisseri,Bartosz Balis,Debjani Banerjee,Zarina Banoo,Francesco Barile,Luca Barioglio,Maria Barlou,Banajit Barman,Gergely Gabor Barnafoldi,Lee Stuart Barnby,Emilie Martine Barreau,Valerie Ramillien Barret,Leonardo Barreto de Oliveira Campos,Clara Bartels,Klaus Barth,Esther Bartsch,Nicole Bastid,Sumit Basu,Guillaume Batigne,Daniel Battistini,Boris Batyunya,Dibakar Bauri,Jose Luis Bazo Alba,Ian Gardner Bearden,Caitlin Beattie,Pascal Becht,Debadatta Behera,Iouri Belikov,Ailec Bell Hechavarria,Francesca Bellini,Rene Bellwied,Svetlana Belokurova,Lucina Gabriela Espinoza Beltran,Yael Antonio Vasquez Beltran,Gyula Bencedi,Adel Bensaoula,Stefania Maria Beole,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Mohammad Asif Bhat,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielcik,Jana Bielcikova,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,Nicolas Luc Bize,Justin Thomas Blair,Dmitry Blau,Mihail Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,Andres Gerardo Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Buesching,Stefania Bufalino,Paul Alois Buhler,Nazar Burmasov,Edith Zinhle Buthelezi,Aleksandr Bylinkin,Sebastian Adam Bysiak,Juan Carlos Cabanillas Noris,Maria Fernanda Torres Cabrera,Mengke Cai,Helen Louise Caines

Published Date

2024/2/28

The -differential production cross sections of non-prompt , , and mesons originating from beauty-hadron decays are measured in protonproton collisions at a centre-of-mass energy of 13 TeV. The measurements are performed at midrapidity, , with the data sample collected by ALICE from 2016 to 2018. The results are in agreement with predictions from several perturbative QCD calculations. The fragmentation fraction of beauty quarks to strange mesons divided by the one to non-strange mesons, , is found to be $0.114 \pm 0.016~{\rm (stat.)} \pm 0.006~{\rm (syst.)} \pm 0.003~{\rm (BR)} \pm 0.003~{\rm (extrap.)}$. This value is compatible with previous measurements at lower centre-of-mass energies and in different collision systems in agreement with the assumption of universality of fragmentation functions. In addition, the dependence of the non-prompt D meson production on the centre-of-mass energy is investigated by comparing the results obtained at and 13 TeV, showing a hardening of the non-prompt D-meson -differential production cross section at higher . Finally, the production cross section per unit of rapidity at midrapidity is calculated from the non-prompt , , , and hadron measurements, obtaining ${\rm d}\sigma/{\rm d}y = 75.2\pm 3.2~(\mathrm{stat.}) \pm 5.2~(\mathrm{syst.})^{+12.3}_{-3.2} ~(\mathrm{extrap.})\text{ } \rm \mu b \;.$

System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider

Authors

S Acharya,D Adamová,G Aglieri Rinella,M Agnello,N Agrawal,Z Ahammed,S Ahmad,SU Ahn,I Ahuja,A Akindinov,M Al-Turany,D Aleksandrov,B Alessandro,HM Alfanda,R Alfaro Molina,B Ali,A Alici,N Alizadehvandchali,A Alkin,J Alme,G Alocco,T Alt,AR Altamura,I Altsybeev,JR Alvarado,MN Anaam,C Andrei,N Andreou,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,JGMCA Arneiro,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,H Baba,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,B Barman,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,YAV Beltran,G Bencedi,S Beole,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,AP Bigot,A Bilandzic,G Biro,S Biswas,N Bize,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,Friederike Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,AG Borquez Carcamo,H Bossi,E Botta,YEM Bouziani,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,MD Buckland,D Budnikov,H Buesching,S Bufalino,P Buhler,N Burmasov,Z Buthelezi,A Bylinkin,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,SL Cantway

Journal

Physical Review C

Published Date

2024/1/29

The first measurements of K*(892) 0 resonance production as a function of charged-particle multiplicity in Xe-Xe collisions at s N N= 5.44 TeV and p p collisions at s= 5.02 TeV using the ALICE detector are presented. The resonance is reconstructed at midrapidity (| y|< 0.5) using the hadronic decay channel K* 0→ K±π∓. Measurements of transverse-momentum integrated yield, mean transverse-momentum, nuclear modification factor of K* 0, and yield ratios of resonance to stable hadron (K* 0/K) are compared across different collision systems (p p, p-Pb, Xe-Xe, and Pb-Pb) at similar collision energies to investigate how the production of K* 0 resonances depends on the size of the system formed in these collisions. The hadronic rescattering effect is found to be independent of the size of colliding systems and mainly driven by the produced charged-particle multiplicity, which is a proxy of the volume of produced …

Systematic study of flow vector decorrelation in TeV Pb-Pb collisions

Authors

Shreyasi Acharya,Dagmar Adamova,Apar Agarwal,Gianluca Aglieri Rinella,Luca Aglietta,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Valentina Akishina,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Masud Alfanda,Jose Ruben Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,Jesus Ricardo Alvarado Garcia,Mustafa Anaam,Cristian Andrei,Nicodemos Andreou,Anton Andronic,Evgeny Andronov,Venelin Anguelov,Federico Antinori,Pietro Antonioli,Nicole Apadula,Laurent Bernard Aphecetche,Harald Appelshaeuser,Carolina Arata,Silvia Arcelli,Mauro Aresti,Roberta Arnaldi,Jhoao Gabriel Martins Campos Almeida Arneiro,Ionut Cristian Arsene,Mesut Arslandok,Andre Augustinus,Ralf Peter Averbeck,Mohd Danish Azmi,Hitoshi Baba,Angela Badala,Joonsuk Bae,Yongwook Baek,Xiaozhi Bai,Raphaelle Marie Bailhache,Yoshini Bailung,Renu Bala,Alessandro Balbino,Alberto Baldisseri,Bartosz Balis,Debjani Banerjee,Zarina Banoo,Veronika Barbasova,Francesco Barile,Luca Barioglio,Maria Barlou,Banajit Barman,Gergely Gabor Barnafoldi,Lee Stuart Barnby,Emilie Martine Barreau,Valerie Ramillien Barret,Leonardo Barreto de Oliveira Campos,Clara Bartels,Klaus Barth,Esther Bartsch,Nicole Bastid,Sumit Basu,Guillaume Batigne,Daniel Battistini,Boris Batyunya,Dibakar Bauri,Jose Luis Bazo Alba,Ian Gardner Bearden,Caitlin Beattie,Pascal Becht,Debadatta Behera,Iouri Belikov,Ailec Bell Hechavarria,Francesca Bellini,Rene Bellwied,Svetlana Belokurova,Lucina Gabriela Espinoza Beltran,Yael Antonio Vasquez Beltran,Gyula Bencedi,Adel Bensaoula,Stefania Maria Beole,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Mohammad Asif Bhat,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielcik,Jana Bielcikova,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,Nicolas Luc Bize,Justin Thomas Blair,Dmitry Blau,Mihail Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,Andres Gerardo Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Buesching,Stefania Bufalino,Paul Alois Buhler,Nazar Burmasov,Edith Zinhle Buthelezi,Aleksandr Bylinkin,Sebastian Adam Bysiak,Juan Carlos Cabanillas Noris,Maria Fernanda Torres Cabrera,Mengke Cai

Published Date

2024/3/26

Measurements of the -dependent flow vector fluctuations in Pb-Pb collisions at using azimuthal correlations with the ALICE experiment at the LHC are presented. A four-particle correlation approach [1] is used to quantify the effects of flow angle and magnitude fluctuations separately. This paper extends previous studies to additional centrality intervals and provides measurements of the -dependent flow vector fluctuations at with two-particle correlations. Significant -dependent fluctuations of the flow vector in Pb-Pb collisions are found across different centrality ranges, with the largest fluctuations of up to 15% being present in the 5% most central collisions. In parallel, no evidence of significant -dependent fluctuations of or is found. Additionally, evidence of flow angle and magnitude fluctuations is observed with more than significance in central collisions. These observations in Pb-Pb collisions indicate where the classical picture of hydrodynamic modeling with a common symmetry plane breaks down. This has implications for hard probes at high , which might be biased by -dependent flow angle fluctuations of at least 23% in central collisions. Given the presented results, existing theoretical models should be re-examined to improve our understanding of initial conditions, quark--gluon plasma (QGP) properties, and the dynamic evolution of the created system.

Femtoscopic correlations of identical charged pions and kaons in collisions at TeV with event-shape selection

Authors

Shreyasi Acharya,Dagmar Adamová,G Aglieri Rinella,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Mas’ud Alfanda,R Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,JR Alvarado,MN Anaam,C Andrei,N Andreou,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,JGMCA Arneiro,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,H Baba,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,B Barman,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,YAV Beltran,G Bencedi,S Beole,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,AP Bigot,A Bilandzic,G Biro,S Biswas,N Bize,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,F Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,AG Borquez Carcamo,H Bossi,E Botta,YEM Bouziani,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,MD Buckland,D Budnikov,H Buesching,S Bufalino,P Buhler,N Burmasov,Z Buthelezi,A Bylinkin,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,SL Cantway

Journal

Physical Review C

Published Date

2024/2/23

Collective behavior has been observed in high-energy heavy-ion collisions for several decades. Collectivity is driven by the high particle multiplicities that are produced in these collisions. At the CERN Large Hadron Collider (LHC), features of collectivity have also been seen in high-multiplicity proton-proton collisions that can attain particle multiplicities comparable to peripheral Pb-Pb collisions. One of the possible signatures of collective behavior is the decrease of femtoscopic radii extracted from pion and kaon pairs emitted from high-multiplicity collisions with increasing pair transverse momentum. This decrease can be described in terms of an approximate transverse mass scaling. In the present work, femtoscopic analyses are carried out by the ALICE Collaboration on charged pion and kaon pairs produced in p p collisions at s= 13 TeV from the LHC to study possible collectivity in p p collisions. The event-shape …

Suppression in Pb-Pb Collisions at the LHC

Authors

S Acharya,D Adamová,A Adler,G Aglieri Rinella,M Agnello,N Agrawal,Z Ahammed,S Ahmad,SU Ahn,I Ahuja,A Akindinov,M Al-Turany,D Aleksandrov,B Alessandro,HM Alfanda,R Alfaro Molina,B Ali,A Alici,N Alizadehvandchali,A Alkin,J Alme,G Alocco,T Alt,I Altsybeev,MN Anaam,C Andrei,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,F Baruffaldi,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,V Belyaev,G Bencedi,S Beole,A Bercuci,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,AP Bigot,A Bilandzic,G Biro,S Biswas,N Bize,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,F Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,A Bolozdynya,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,AG Borquez Carcamo,H Bossi,E Botta,YEM Bouziani,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,D Budnikov,H Buesching,S Bufalino,O Bugnon,P Buhler,Z Buthelezi,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,M Carabas,AA Carballo,F Carnesecchi,R Caron,J Castillo Castellanos

Journal

Physical Review Letters

Published Date

2024/1/24

The production of the ψ (2 S) charmonium state was measured with ALICE in Pb-Pb collisions at s NN= 5.02 TeV, in the dimuon decay channel. A significant signal was observed for the first time at LHC energies down to zero transverse momentum, at forward rapidity (2.5< y< 4). The measurement of the ratio of the inclusive production cross sections of the ψ (2 S) and J/ψ resonances is reported as a function of the centrality of the collisions and of transverse momentum, in the region p T< 12 GeV/c. The results are compared with the corresponding measurements in p p collisions, by forming the double ratio [σ ψ (2 S)/σ J/ψ] Pb− Pb/[σ ψ (2 S)/σ J/ψ] p p. It is found that in Pb-Pb collisions the ψ (2 S) is suppressed by a factor of∼ 2 with respect to the J/ψ. The ψ (2 S) nuclear modification factor R AA was also obtained as a function of both centrality and p T. The results show that the ψ (2 S) resonance yield is strongly …

Measurement of baryon production and branching-fraction ratio in pp collisions at = 13 TeV

Authors

Shreyasi Acharya,Dagmar Adamova,Apar Agarwal,Gianluca Aglieri Rinella,Luca Aglietta,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Valentina Akishina,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Masud Alfanda,Jose Ruben Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,Jesus Ricardo Alvarado Garcia,Mustafa Anaam,Cristian Andrei,Nicodemos Andreou,Anton Andronic,Evgeny Andronov,Venelin Anguelov,Federico Antinori,Pietro Antonioli,Nicole Apadula,Laurent Bernard Aphecetche,Harald Appelshaeuser,Carolina Arata,Silvia Arcelli,Mauro Aresti,Roberta Arnaldi,Jhoao Gabriel Martins Campos Almeida Arneiro,Ionut Cristian Arsene,Mesut Arslandok,Andre Augustinus,Ralf Peter Averbeck,Mohd Danish Azmi,Hitoshi Baba,Angela Badala,Joonsuk Bae,Yongwook Baek,Xiaozhi Bai,Raphaelle Marie Bailhache,Yoshini Bailung,Renu Bala,Alessandro Balbino,Alberto Baldisseri,Bartosz Balis,Debjani Banerjee,Zarina Banoo,Veronika Barbasova,Francesco Barile,Luca Barioglio,Maria Barlou,Banajit Barman,Gergely Gabor Barnafoldi,Lee Stuart Barnby,Emilie Martine Barreau,Valerie Ramillien Barret,Leonardo Barreto de Oliveira Campos,Clara Bartels,Klaus Barth,Esther Bartsch,Nicole Bastid,Sumit Basu,Guillaume Batigne,Daniel Battistini,Boris Batyunya,Dibakar Bauri,Jose Luis Bazo Alba,Ian Gardner Bearden,Caitlin Beattie,Pascal Becht,Debadatta Behera,Iouri Belikov,Ailec Bell Hechavarria,Francesca Bellini,Rene Bellwied,Svetlana Belokurova,Lucina Gabriela Espinoza Beltran,Yael Antonio Vasquez Beltran,Gyula Bencedi,Adel Bensaoula,Stefania Maria Beole,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielcik,Jana Bielcikova,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,Nicolas Luc Bize,Justin Thomas Blair,Dmitry Blau,Mihail Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,Andres Gerardo Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Buesching,Stefania Bufalino,Paul Alois Buhler,Nazar Burmasov,Edith Zinhle Buthelezi,Aleksandr Bylinkin,Sebastian Adam Bysiak,Juan Carlos Cabanillas Noris,Maria Fernanda Torres Cabrera,Mengke Cai,Helen Louise Caines

Published Date

2024/4/29

The inclusive production of the charm-strange baryon is measured for the first time via its semileptonic decay into at midrapidity () in protonproton (pp) collisions at the centre-of-mass energy TeV with the ALICE detector at the LHC. The transverse momentum () differential cross section multiplied by the branching ratio is presented in the interval . The branching-fraction ratio is measured to be 1.12 0.22 (stat.) 0.27 (syst.). Comparisons with other experimental measurements, as well as with theoretical calculations, are presented.

Systematic study of flow vector decorrelation in√ sNN= 5.02 TeV Pb–Pb collisions

Authors

Shreyasi Acharya,Dagmar Adamová,Apar Agarwal,Gianluca Aglieri Rinella,Luca Aglietta,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Valentina Akishina,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Mas’ud Alfanda,Jose Ruben Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,Jesús Ricardo Alvarado Garcia,Mustafa Naji Anaam,Cristian Andrei,Nicodemos Andreou,Anton Andronic,Evgeny Andronov,Venelin Anguelov,Federico Antinori,Pietro Antonioli,Nicole Apadula,Laurent Bernard Aphecetche,Harald Appelshäuser,Carolina Arata,Silvia Arcelli,Mauro Aresti,Roberta Arnaldi,Jhoao Gabriel Martins Campos Almeida Arneiro,Ionut Cristian Arsene,Mesut Arslandok,Andre Augustinus,Ralf Peter Averbeck,Mohd Danish Azmi,Hitoshi Baba,Angela Badalà,Joonsuk Bae,Yong Wook Baek,Xiaozhi Bai,Raphaëlle Bailhache,Yoshini Bailung,Renu Bala,Alessandro Balbino,Alberto Baldisseri,Bartosz Balis,Debjani Banerjee,Zarina Banoo,Veronika Barbasova,Francesco Barile,Luca Barioglio,Maria Barlou,Banajit Barman,Gergely Gábor Barnaföldi,Lee Stuart Barnby,Emilie Martine Barreau,Valerie Ramillien Barret,Leonardo Barreto De Oliveira Campos,Clara Bartels,Klaus Barth,Esther Bartsch,Nicole Bastid,Sumit Basu,Guillaume Batigne,Daniel Battistini,Boris Batyunya,Dibakar Bauri,José Luis Bazo Alba,Ian Gardner Bearden,Caitlin Beattie,Pascal Becht,Debadatta Behera,Iouri Belikov,Ailec de la Caridad Bell Hechavarria,Francesca Bellini,Rene Bellwied,Svetlana Belokurova,Lucina Gabriela Espinoza Beltran,Yael Antonio Vasquez Beltran,Gyula Bencédi,Adel Bensaoula,Stefania Beolè,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Mohammad Asif Bhat,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielčík,Jana Bielčíková,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,Nicolas Luc Bize,Justin Thomas Blair,Dmitry S Blau,Mihail-Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,Andres Gerardo Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Büsching,Stefania Bufalino,Paul Bühler,Nazar Burmasov,Edith Zinhle Buthelezi,Alexander Bylinkin,Sebastian Adam Bysiak,Juan Carlos Cabanillas Noris,Maria Fernanda Torres Cabrera,Mengke Cai

Journal

arXiv

Published Date

2024/3/22

Measurements of the pT-dependent flow vector fluctuations in Pb-Pb collisions at sNN−−−√=5.02 TeV using azimuthal correlations with the ALICE experiment at the LHC are presented. A four-particle correlation approach [1] is used to quantify the effects of flow angle and magnitude fluctuations separately. This paper extends previous studies to additional centrality intervals and provides measurements of the pT-dependent flow vector fluctuations at sNN−−−√=5.02 TeV with two-particle correlations. Significant pT-dependent fluctuations of the V⃗ 2 flow vector in Pb-Pb collisions are found across different centrality ranges, with the largest fluctuations of up to ∼15% being present in the 5% most central collisions. In parallel, no evidence of significant pT-dependent fluctuations of V⃗ 3 or V⃗ 4 is found. Additionally, evidence of flow angle and magnitude fluctuations is observed with more than 5σ significance in central collisions. These observations in Pb-Pb collisions indicate where the classical picture of hydrodynamic modeling with a common symmetry plane breaks down. This has implications for hard probes at high pT, which might be biased by pT-dependent flow angle fluctuations of at least 23% in central collisions. Given the presented results, existing theoretical models should be re-examined to improve our understanding of initial conditions, quark--gluon plasma (QGP) properties, and the dynamic evolution of the created system.

Skewness and kurtosis of mean transverse momentum fluctuations at the LHC energies

Authors

Journal

Physics Letters B

Published Date

2024/2/23

The first measurements of skewness and kurtosis of mean transverse momentum (< p T>) fluctuations are reported in Pb–Pb collisions at s NN= 5.02 TeV, Xe–Xe collisions at s NN= 5.44 TeV and pp collisions at s= 5.02 TeV using the ALICE detector. The measurements are carried out as a function of system size< d N ch/d η>| η|< 0.5 1/3, using charged particles with transverse momentum (p T) and pseudorapidity (η), in the range 0.2< p T< 3.0 GeV/c and| η|< 0.8, respectively. In Pb–Pb and Xe–Xe collisions, positive skewness is observed in the fluctuations of< p T> for all centralities, which is significantly larger than what would be expected in the scenario of independent particle emission. This positive skewness is considered a crucial consequence of the hydrodynamic evolution of the hot and dense nuclear matter created in heavy-ion collisions. Furthermore, similar observations of positive skewness for minimum …

Investigating the nature of the K state with K correlations at the LHC

Authors

Shreyasi Acharya,Dagmar Adamova,Gianluca Aglieri Rinella,Luca Aglietta,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Masud Alfanda,Jose Ruben Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,Jesus Ricardo Alvarado Garcia,Mustafa Anaam,Cristian Andrei,Nicodemos Andreou,Anton Andronic,Evgeny Andronov,Venelin Anguelov,Federico Antinori,Pietro Antonioli,Nicole Apadula,Laurent Bernard Aphecetche,Harald Appelshaeuser,Carolina Arata,Silvia Arcelli,Mauro Aresti,Roberta Arnaldi,Jhoao Gabriel Martins Campos Almeida Arneiro,Ionut Cristian Arsene,Mesut Arslandok,Andre Augustinus,Ralf Peter Averbeck,Mohd Danish Azmi,Hitoshi Baba,Angela Badala,Joonsuk Bae,Yongwook Baek,Xiaozhi Bai,Raphaelle Marie Bailhache,Yoshini Bailung,Renu Bala,Alessandro Balbino,Alberto Baldisseri,Bartosz Balis,Debjani Banerjee,Zarina Banoo,Francesco Barile,Luca Barioglio,Maria Barlou,Banajit Barman,Gergely Gabor Barnafoldi,Lee Stuart Barnby,Emilie Martine Barreau,Valerie Ramillien Barret,Leonardo Barreto de Oliveira Campos,Clara Bartels,Klaus Barth,Esther Bartsch,Nicole Bastid,Sumit Basu,Guillaume Batigne,Daniel Battistini,Boris Batyunya,Dibakar Bauri,Jose Luis Bazo Alba,Ian Gardner Bearden,Caitlin Beattie,Pascal Becht,Debadatta Behera,Iouri Belikov,Ailec Bell Hechavarria,Francesca Bellini,Rene Bellwied,Svetlana Belokurova,Lucina Gabriela Espinoza Beltran,Yael Antonio Vasquez Beltran,Gyula Bencedi,Adel Bensaoula,Stefania Maria Beole,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Mohammad Asif Bhat,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielcik,Jana Bielcikova,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,Nicolas Luc Bize,Justin Thomas Blair,Dmitry Blau,Mihail Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Stefano Boi,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,Andres Gerardo Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Buesching,Stefania Bufalino,Paul Alois Buhler,Nazar Burmasov,Edith Zinhle Buthelezi,Aleksandr Bylinkin,Sebastian Adam Bysiak,Juan Carlos Cabanillas Noris,Maria Fernanda Torres Cabrera,Mengke Cai,Helen Louise Caines,Alberto Caliva

Published Date

2024/1/4

The first measurements of femtoscopic correlations with the particle pair combinations K in pp collisions at TeV at the Large Hadron Collider (LHC) are reported by the ALICE experiment. Using the femtoscopic approach, it is shown that it is possible to study the elusive K particle that has been considered a tetraquark candidate for over forty years. Boson source parameters and final-state interaction parameters are extracted by fitting a model assuming a Gaussian source to the experimentally measured two-particle correlation functions. The final-state interaction is modeled through a resonant scattering amplitude, defined in terms of a mass and a coupling parameter, decaying into a K pair. The extracted mass and Breit-Wigner width, derived from the coupling parameter, of the final-state interaction are found to be consistent with previous measurements of the K. The small value and increasing behavior of the correlation strength with increasing source size support the hypothesis that the K is a four-quark state, i.e. a tetraquark state. This latter trend is also confirmed via a simple geometric model that assumes a tetraquark structure of the K resonance.

Exclusive four pion photoproduction in ultraperipheral Pb-Pb collisions at TeV

Authors

Shreyasi Acharya,Dagmar Adamova,Apar Agarwal,Gianluca Aglieri Rinella,Luca Aglietta,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Valentina Akishina,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Masud Alfanda,Jose Ruben Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,Jesus Ricardo Alvarado Garcia,Mustafa Anaam,Cristian Andrei,Nicodemos Andreou,Anton Andronic,Evgeny Andronov,Venelin Anguelov,Federico Antinori,Pietro Antonioli,Nicole Apadula,Laurent Bernard Aphecetche,Harald Appelshaeuser,Carolina Arata,Silvia Arcelli,Mauro Aresti,Roberta Arnaldi,Jhoao Gabriel Martins Campos Almeida Arneiro,Ionut Cristian Arsene,Mesut Arslandok,Andre Augustinus,Ralf Peter Averbeck,Mohd Danish Azmi,Hitoshi Baba,Angela Badala,Joonsuk Bae,Yongwook Baek,Xiaozhi Bai,Raphaelle Marie Bailhache,Yoshini Bailung,Renu Bala,Alessandro Balbino,Alberto Baldisseri,Bartosz Balis,Debjani Banerjee,Zarina Banoo,Veronika Barbasova,Francesco Barile,Luca Barioglio,Maria Barlou,Banajit Barman,Gergely Gabor Barnafoldi,Lee Stuart Barnby,Emilie Martine Barreau,Valerie Ramillien Barret,Leonardo Barreto de Oliveira Campos,Clara Bartels,Klaus Barth,Esther Bartsch,Nicole Bastid,Sumit Basu,Guillaume Batigne,Daniel Battistini,Boris Batyunya,Dibakar Bauri,Jose Luis Bazo Alba,Ian Gardner Bearden,Caitlin Beattie,Pascal Becht,Debadatta Behera,Iouri Belikov,Ailec Bell Hechavarria,Francesca Bellini,Rene Bellwied,Svetlana Belokurova,Lucina Gabriela Espinoza Beltran,Yael Antonio Vasquez Beltran,Gyula Bencedi,Adel Bensaoula,Stefania Maria Beole,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Mohammad Asif Bhat,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielcik,Jana Bielcikova,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,Nicolas Luc Bize,Justin Thomas Blair,Dmitry Blau,Mihail Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,Andres Gerardo Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Buesching,Stefania Bufalino,Paul Alois Buhler,Nazar Burmasov,Edith Zinhle Buthelezi,Aleksandr Bylinkin,Sebastian Adam Bysiak,Juan Carlos Cabanillas Noris,Maria Fernanda Torres Cabrera,Mengke Cai

Journal

arXiv

Published Date

2024/4/23

The intense photon fluxes from relativistic nuclei provide an opportunity to study photonuclear interactions in ultraperipheral collisions. The measurement of coherently photoproduced final states in ultraperipheral Pb-Pb collisions at TeV is presented for the first time. The cross section, d/d, times the branching ratio () is found to be mb in the rapidity interval . The invariant mass distribution is not well described with a single Breit-Wigner resonance. The production of two interfering resonances, and , provides a good description of the data. The values of the masses () and widths () of the resonances extracted from the fit are MeV/, MeV/, MeV/ and MeV/, respectively. The measured cross sections times the branching ratios are compared to recent theoretical predictions.

Modification of charged-particle jets in event-shape engineered Pb–Pb collisions at TeV

Authors

Shreyasi Acharya,Seoyoung Noh,Gabor Biro,Jacek Tomasz Otwinowski,Sebastian Adam Bysiak,Prottoy Das,Chiara De Martin,Xiaozhi Bai,Marco Bregant,Gvozden Neskovic,Motomi Oya,Pierre Vande Vyvre,Fabio Catalano,Piotr Jan Gasik,Mirko Planinic,Valeriy Pozdniakov,Esther Bartsch,Vytautas Vislavicius,Francesca Soramel,Artem Shangaraev,Pavel Larionov,Torsten Alt,Zhi Yu,Emma Sophia Chizzali,Mengke Cai,Xiaoming Zhang,Arun Kumar Yadav,Stephan Alexander Konigstorfer,Daniel Battistini,Guy Paic,Alexandre Shabetai,Christian Holm Christensen,Andreas Ralph Redelbach,Pascal Dupieux,Piero Giubilato,Jeremy John Wilkinson,Navneet Kumar,Maria Barlou,Ketil Roeed,Laurent Bernard Aphecetche,Abderrahmane Ghimouz,Tanu Gahlaut,Benedict Heybeck,Reynier Cruz Torres,Sven Gotovac,Svetlana Kushpil,Maciej Szymkowski,Zaida Conesa Del Valle,Vladimir Kovalenko,Rafael Peretti Pezzi,Ernst Hellbar,Mario Ciacco,Federico Cindolo,Janusz Oleniacz,Mattia Faggin,Dibakar Bauri,Jacek Bogumil Biernat,Zabulon Vilakazi,Debadatta Behera,Abhi Modak,Alexander Vodopyanov,Victor Jose Gaston Feuillard,Dmitry Budnikov,Tea Bodova,Pietro Antonioli,Ernesto Calvo Villar,Livia Terlizzi,Mikhail Malaev,Silvia Pisano,Antonina Rosano,Salman Khurshid Malik,Manuel Viqueira Rodriguez,Stefano Trogolo,Wenjing Deng,Omar Vazquez Rueda,Roberta Arnaldi,David Olle Rickard Silvermyr,Thiago Badaro Saramela,Gerardo Antonio Herrera Corral,Randhir Singh,Tommaso Isidori,Ren Ejima,Roman Lavicka,Geun Hee Hong,Radiy Ilkaev,Nicole Bastid,Anjali Sharma,Preeti Dhankher,Adrian Fereydon Nassirpour,Antonio Carlos Oliveira Da Silva,Amalia Pop,Iris Likmeta,Zubayer Ahammed,Dong Jo Kim,Andrea Sofia Triolo,Maximiliano Puccio,Jonathan Samuel Colburn,Cindy Mordasini,Anton Jusko,Sergey Kiselev,Md Rihan Haque,Victor Trubnikov,Subhasis Chattopadhyay,Jin Hee Yoon,Se Yong Kim,Malgorzata Anna Janik,Rachid Guernane,Antonio Trifiro,Raffaele Del Grande,Krzysztof Redlich,Sanjeev Singh Sambyal,Maxime Rene Joseph Guilbaud,Alexandra Neagu,Younghoon Han,Alberica Toia,Valerie Ramillien Barret,Yvonne Chiara Pachmayer,Manuel Colocci,Sergey Voloshin,Fakhar Ul Haider,Rune Langoy,Roberto Russo,Oeystein Djuvsland,Uliana Dmitrieva,Mario Kruger,Jon Wikne,Alessandro Balbino,Boris Batyunya,Raffaele Grosso,Branislav Sitar,Guillermo Tejeda Munoz,Jeongsu Bok,Luciano Musa,Sandeep Dudi,Alice Elisabeth Ohlson,Abhishek Nath,Boris Hippolyte,Guillaume Batigne,Florian Herrmann,Rik Spijkers,Emilie Haugland Solheim,Maya Hachiya Shimomura,Nicola Nicassio,Janik Ditzel,Federico Antinori,Ananya Rai,Peter Levai,Alexander Vinogradov,Teo Mrnjavac,Maria Paula Martins Palhares

Published Date

2023/7/25

Charged-particle jet yields have been measured in semicentral Pb–Pb collisions at center-of-mass energy per nucleon–nucleon collision

Measurements of inclusive J/ψ production at midrapidity and forward rapidity in Pb–Pb collisions at sNN= 5.02 TeV

Authors

S Acharya,D Adamová,A Adler,G Aglieri Rinella,M Agnello,N Agrawal,Z Ahammed,S Ahmad,SU Ahn,I Ahuja,A Akindinov,M Al-Turany,D Aleksandrov,B Alessandro,HM Alfanda,R Alfaro Molina,B Ali,A Alici,N Alizadehvandchali,A Alkin,J Alme,G Alocco,T Alt,I Altsybeev,JR Alvarado,MN Anaam,C Andrei,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,JGMCA Arneiro,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,G Bencedi,S Beole,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,AP Bigot,A Bilandzic,G Biro,S Biswas,N Bize,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,F Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,AG Borquez Carcamo,H Bossi,E Botta,YEM Bouziani,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,MD Buckland,D Budnikov,H Buesching,S Bufalino,P Buhler,Z Buthelezi,A Bylinkin,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,SL Cantway,M Carabas,AA Carballo,F Carnesecchi,R Caron,LAD Carvalho

Journal

Physics Letters B

Published Date

2024/2/1

The measurements of the inclusive J/ψ yield at midrapidity (| y|< 0. 9) and forward rapidity (2.5< y< 4) in Pb–Pb collisions at s NN= 5.02 TeV with the ALICE detector at the LHC are reported. The inclusive J/ψ production yields and nuclear modification factors, R AA, are measured as a function of the collision centrality, J/ψ transverse momentum (p T), and rapidity. The J/ψ average transverse momentum and squared transverse momentum (< p T> and< p T 2>) are evaluated as a function of the centrality at midrapidity. Compared to the previous ALICE publications, here the entire Pb–Pb collisions dataset collected during the LHC Run 2 is used, which improves the precision of the measurements and extends the p T coverage. The p T-integrated R AA shows a hint of an increasing trend towards unity from semicentral to central collisions at midrapidity, while it is flat at forward rapidity. The p T-differential R AA shows a …

Charged-particle production as a function of the relative transverse activity classifier in pp, p–Pb, and Pb–Pb collisions at the LHC

Authors

Shreyasi Acharya,Dagmar Adamová,Gianluca Aglieri Rinella,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Mas’ud Alfanda,R Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,JR Alvarado,MN Anaam,C Andrei,N Andreou,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,JGMCA Arneiro,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,H Baba,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,B Barman,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,YAV Beltran,G Bencedi,S Beole,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,AP Bigot,A Bilandzic,G Biro,S Biswas,N Bize,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,F Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,AG Borquez Carcamo,H Bossi,E Botta,YEM Bouziani,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,MD Buckland,D Budnikov,H Buesching,S Bufalino,P Buhler,N Burmasov,Z Buthelezi,A Bylinkin,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,SL Cantway

Journal

Journal of high energy physics

Published Date

2024/1

Measurements of charged-particle production in pp, p–Pb, and Pb–Pb collisions in the toward, away, and transverse regions with the ALICE detector are discussed. These regions are defined event-by-event relative to the azimuthal direction of the charged trigger particle, which is the reconstructed particle with the largest transverse momentum in the range 8<< 15 GeV/c. The toward and away regions contain the primary and recoil jets, respectively; both regions are accompanied by the underlying event (UE). In contrast, the transverse region perpendicular to the direction of the trigger particle is dominated by the so-called UE dynamics, and includes also contributions from initial-and final-state radiation. The relative transverse activity classifier,, is used to group events according to their UE activity, where is the charged-particle multiplicity per event in the transverse region and is the mean …

First Measurement of the Dependence of Incoherent Photonuclear Production

Authors

S Acharya,D Adamová,A Adler,G Aglieri Rinella,M Agnello,N Agrawal,Z Ahammed,S Ahmad,SU Ahn,I Ahuja,A Akindinov,M Al-Turany,D Aleksandrov,B Alessandro,HM Alfanda,R Alfaro Molina,B Ali,A Alici,N Alizadehvandchali,A Alkin,J Alme,G Alocco,T Alt,AR Altamura,I Altsybeev,JR Alvarado,MN Anaam,C Andrei,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,JGMCA Arneiro,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,H Baba,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,G Bencedi,S Beole,A Bercuci,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,AP Bigot,A Bilandzic,G Biro,S Biswas,N Bize,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,F Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,AG Borquez Carcamo,H Bossi,E Botta,YEM Bouziani,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,MD Buckland,D Budnikov,H Buesching,S Bufalino,P Buhler,N Burmasov,Z Buthelezi,A Bylinkin,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,SL Cantway,M Carabas

Journal

Physical Review Letters

Published Date

2024/4/19

The first measurement of the cross section for incoherent photonuclear production of J/ψ vector mesons as a function of the Mandelstam| t| variable is presented. The measurement was carried out with the ALICE detector at midrapidity,| y|< 0.8, using ultraperipheral collisions of Pb nuclei at a center-of-mass energy per nucleon pair of s NN= 5.02 TeV. This rapidity interval corresponds to a Bjorken-x range (0.3–1.4)× 10− 3. Cross sections are given in five| t| intervals in the range 0.04<| t|< 1 GeV 2 and compared to the predictions by different models. Models that ignore quantum fluctuations of the gluon density in the colliding hadron predict a| t| dependence of the cross section much steeper than in data. The inclusion of such fluctuations in the same models provides a better description of the data.

Pseudorapidity dependence of anisotropic flow and its decorrelations using long-range multiparticle correlations in Pb–Pb and Xe–Xe collisions

Authors

Shreyasi Acharya,Dagmar Adamová,Alexander Adler,G Aglieri Rinella,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Mas’ud Alfanda,R Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,JR Alvarado,MN Anaam,C Andrei,N Andreou,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,JGMCA Arneiro,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,H Baba,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,G Bencedi,S Beole,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Mohammad Asif Bhat,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielčík,Jana Bielčíková,Jacek Biernat,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,N Bize,Justin Thomas Blair,Dmitry Blau,Mihail-Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Alexey Bogdanov,Stefano Boi,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,AG Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Büsching,Stefania Bufalino,P Buhler,Nazar Burmasov,Z Buthelezi,Alexander Bylinkin,Sebastian Adam Bysiak,Mengke Cai,H Caines,Alberto Caliva,E Calvo Villar,Juan Manuel Mejia Camacho,Paolo Camerini,FDM Canedo,SL Cantway,M Carabas

Journal

Physics Letters B

Published Date

2024/3/1

The pseudorapidity dependence of elliptic (v 2), triangular (v 3), and quadrangular (v 4) flow coefficients of charged particles measured in Pb–Pb collisions at a centre-of-mass energy per nucleon pair of s NN= 5.02 TeV and in Xe–Xe collisions at s NN= 5.44 TeV with ALICE at the LHC are presented. The measurements are performed in the pseudorapidity range− 3.5< η< 5 for various centrality intervals using two-and multi-particle cumulants with the subevent method. The flow probability density function (pdf) is studied with the ratio of flow coefficient v 2 calculated with four-and two-particle cumulant, and suggests that the variance of flow pdf is independent of pseudorapidity. The decorrelation of the flow vector in the longitudinal direction is probed using two-particle correlations. The results measured with respect to different reference regions in pseudorapidity exhibit differences, argued to be a result of saturating …

Measurement of the radius dependence of charged-particle jet suppression in Pb–Pb collisions at sNN= 5.02 TeV

Authors

Shreyasi Acharya,Dagmar Adamova,Alexander Adler,G Aglieri Rinella,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Masud Alfanda,R Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Igor Altsybeev,JR Alvarado,Mustafa Naji Anaam,Cristian Andrei,Anton Andronic,Venelin Anguelov,Federico Antinori,Pietro Antonioli,Nicole Apadula,L Aphecetche,Harald Appelshäuser,Carolina Arata,Silvia Arcelli,Mauro Aresti,Roberta Arnaldi,Jhoao Gabriel Martins Campos Almeida Arneiro,Ionut Cristian Arsene,Mesut Arslandok,Andre Augustinus,R Averbeck,Mohd Danish Azmi,Angela Badalà,Joonsuk Bae,Yong Wook Baek,Xiaozhi Bai,Raphaëlle Bailhache,Yoshini Bailung,Alessandro Balbino,Alberto Baldisseri,Bartosz Balis,Debjani Banerjee,Zarina Banoo,Roberto Barbera,Francesco Barile,Luca Barioglio,Maria Barlou,Gergely Gábor Barnaföldi,Lee Stuart Barnby,Valerie Barret,L Barreto,Clara Bartels,Klaus Barth,Esther Bartsch,Nicole Bastid,Sumit Basu,Guillaume Batigne,Daniel Battistini,Boris Batyunya,Dibakar Bauri,JL Bazo Alba,Ian Gardner Bearden,Caitlin Beattie,Pascal Becht,Debadatta Behera,Iouri Belikov,ADC Bell Hechavarria,Francesca Bellini,Rene Bellwied,Svetlana Belokurova,Vladimir Belyaev,Gyula Bencedi,Stefania Beolè,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Mohammad Asif Bhat,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielčík,Jana Bielčíková,Jacek Biernat,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,Nicolas Bizé,Justin Thomas Blair,Dmitry Blau,Mihail Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Alexey Bogdanov,Stefano Boi,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,AG Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Buesching,Stefania Bufalino,P Buhler,Z Buthelezi,Aleksandr Bylinkin,Sebastian Adam Bysiak,Mengke Cai,H Caines,Alberto Caliva,E Calvo Villar,Juan Manuel Mejia Camacho,Paolo Camerini,FDM Canedo,SL Cantway,Mihai Carabas,Aitor Amatriain Carballo,Francesca Carnesecchi,R Caron

Journal

Physics Letters B

Published Date

2024/2/1

The ALICE Collaboration reports a differential measurement of inclusive jet suppression using pp and Pb–Pb collision data at a center-of-mass energy per nucleon–nucleon collision s NN= 5.02 TeV. Charged-particle jets are reconstructed using the anti-k T algorithm with resolution parameters R= 0.2, 0.3, 0.4, 0.5, and 0.6 in pp collisions and R= 0.2, 0.4, 0.6 in central (0–10%), semi-central (30–50%), and peripheral (60–80%) Pb–Pb collisions. A novel approach based on machine learning is employed to mitigate the influence of jet background. This enables measurements of inclusive jet suppression in new regions of phase space, including down to the lowest jet p T≥ 40 GeV/c at R= 0.6 in central Pb–Pb collisions. This is an important step for discriminating different models of jet quenching in the quark–gluon plasma. The transverse momentum spectra, nuclear modification factors, derived cross section, and …

Measurement of the low-energy antitriton inelastic cross section

Authors

Shreyasi Acharya,Dagmar Adamová,Alexander Adler,G Aglieri Rinella,Michelangelo Agnello,Neelima Agrawal,Zubayer Ahammed,Shakeel Ahmad,Sang Un Ahn,Ishaan Ahuja,Alexander Akindinov,Mohammad Al-Turany,Dmitry Aleksandrov,Bruno Alessandro,Haidar Mas’ud Alfanda,R Alfaro Molina,Bushra Ali,Andrea Alici,Negin Alizadehvandchali,Anton Alkin,Johan Alme,Giacomo Alocco,Torsten Alt,Anna Rita Altamura,Igor Altsybeev,Mustafa Naji Anaam,Cristian Andrei,Anton Andronic,Venelin Anguelov,Federico Antinori,Pietro Antonioli,Nicole Apadula,L Aphecetche,Harald Appelshaeuser,Carolina Arata,Silvia Arcelli,Mauro Aresti,Roberta Arnaldi,Jhoao Gabriel Martins Campos Almeida Arneiro,Ionut Cristian Arsene,Mesut Arslandok,Andre Augustinus,R Averbeck,Mohd Danish Azmi,Hitoshi Baba,Angela Badalà,Joonsuk Bae,Yong Wook Baek,Xiaozhi Bai,Raphaëlle Bailhache,Yoshini Bailung,Alessandro Balbino,Alberto Baldisseri,Bartosz Balis,Debjani Banerjee,Zarina Banoo,Roberto Barbera,Francesco Barile,Luca Barioglio,Maria Barlou,Gergely Gábor Barnaföldi,Lee Stuart Barnby,V Barret,L Barreto,Clara Bartels,Klaus Barth,Esther Bartsch,Nicole Bastid,Sumit Basu,Guillaume Batigne,Daniel Battistini,Boris Batyunya,Dibakar Bauri,JL Bazo Alba,Ian Gardner Bearden,Caitlin Beattie,Pascal Becht,Debadatta Behera,Iouri Belikov,ADC Bell Hechavarria,Francesca Bellini,Rene Bellwied,Svetlana Belokurova,Gyula Bencédi,Stefania Beolè,Alexandru Bercuci,Yaroslav Berdnikov,Anastasia Berdnikova,Luisa Bergmann,Mihaela Gabriela Besoiu,Latchezar Betev,Partha Pratim Bhaduri,Anju Bhasin,Mohammad Asif Bhat,Buddhadeb Bhattacharjee,Livio Bianchi,Nicola Bianchi,Jaroslav Bielčík,Jana Bielčíková,Jacek Biernat,Alexandre Patrick Bigot,Ante Bilandzic,Gabor Biro,Saikat Biswas,N Bize,Justin Thomas Blair,Dmitry Blau,Mihail-Bogdan Blidaru,Nora Bluhme,Christoph Blume,Gianluigi Boca,Friederike Bock,Tea Bodova,Alexey Bogdanov,Stefano Boi,Jeongsu Bok,Laszlo Boldizsar,Marek Bombara,Peter Matthew Bond,Germano Bonomi,Herve Borel,Alexander Borissov,AG Borquez Carcamo,Hannah Bossi,Elena Botta,Youssef El Mard Bouziani,Lars Bratrud,Peter Braun-Munzinger,Marco Bregant,Michal Broz,Giuseppe Eugenio Bruno,Matthew Daniel Buckland,Dmitry Budnikov,Henner Büsching,Stefania Bufalino,P Buhler,Nazar Burmasov,Z Buthelezi,Alexander Bylinkin,Sebastian Adam Bysiak,Mengke Cai,H Caines,Alberto Caliva,E Calvo Villar,Juan Manuel Mejia Camacho,Paolo Camerini,FDM Canedo,SL Cantway,M Carabas,AA Carballo

Journal

Physics Letters B

Published Date

2024/1/1

In this Letter, the first measurement of the inelastic cross section for antitriton–nucleus interactions is reported, covering the momentum range of 0.8≤ p< 2.4 GeV/c. The measurement is carried out using data recorded with the ALICE detector in pp and Pb–Pb collisions at a centre-of-mass energy per nucleon of 13 TeV and 5.02 TeV, respectively. The detector material serves as an absorber for antitriton nuclei. The raw yield of (anti) triton nuclei measured with the ALICE apparatus is compared to the results from detailed ALICE simulations based on the Image 1 toolkit for the propagation of (anti) particles through matter, allowing one to quantify the inelastic interaction probability in the detector material. This analysis complements the measurement of the inelastic cross section of antinuclei up to A= 3 carried out by the ALICE Collaboration, and demonstrates the feasibility of the study of the isospin dependence of …

Measurement of the fraction of jet longitudinal momentum carried by baryons in collisions

Authors

S Acharya,D Adamová,A Adler,G Aglieri Rinella,M Agnello,N Agrawal,Z Ahammed,S Ahmad,SU Ahn,I Ahuja,A Akindinov,M Al-Turany,D Aleksandrov,B Alessandro,HM Alfanda,R Alfaro Molina,B Ali,A Alici,N Alizadehvandchali,A Alkin,J Alme,G Alocco,T Alt,I Altsybeev,JR Alvarado,MN Anaam,C Andrei,A Andronic,V Anguelov,F Antinori,P Antonioli,N Apadula,L Aphecetche,H Appelshäuser,C Arata,S Arcelli,M Aresti,R Arnaldi,JGMCA Arneiro,IC Arsene,M Arslandok,A Augustinus,R Averbeck,MD Azmi,A Badalà,J Bae,YW Baek,X Bai,R Bailhache,Y Bailung,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,F Barile,L Barioglio,M Barlou,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,V Belyaev,G Bencedi,S Beole,A Bercuci,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,AP Bigot,A Bilandzic,G Biro,S Biswas,N Bize,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,F Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,AG Borquez Carcamo,H Bossi,E Botta,YEM Bouziani,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,MD Buckland,D Budnikov,H Buesching,S Bufalino,O Bugnon,P Buhler,Z Buthelezi,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,SL Cantway,M Carabas,AA Carballo,F Carnesecchi

Journal

Physical Review D

Published Date

2024/4/5

Recent measurements of charm-baryon production in hadronic collisions have questioned the universality of charm-quark fragmentation across different collision systems. In this work the fragmentation of charm quarks into charm baryons is probed, by presenting the first measurement of the longitudinal jet momentum fraction carried by Λ c+ baryons, z∥ ch, in hadronic collisions. The results are obtained in proton-proton (p p) collisions at s= 13 TeV at the LHC, with Λ c+ baryons and charged (track-based) jets reconstructed in the transverse momentum intervals of 3≤ p T Λ c+< 15 GeV/c and 7≤ p T jet ch< 15 GeV/c, respectively. The z∥ ch distribution is compared to a measurement of D 0-tagged charged jets in p p collisions as well as to pythia 8 simulations. The data hints that the fragmentation of charm quarks into charm baryons is softer with respect to charm mesons, in the measured kinematic interval, as …

ALICE luminosity determination for Pb–Pb collisions at√ s NN= 5.02 TeV

Authors

S Acharya,D Adamová,A Adler,G Aglieri Rinella,M Agnello,N Agrawal,Z Ahammed,S Ahmad,SU Ahn,I Ahuja,A Akindinov,M Al-Turany,D Aleksandrov,B Alessandro,HM Alfanda,R Alfaro Molina,B Ali,Y Ali,A Alici,N Alizadehvandchali,A Alkin,J Alme,G Alocco,T Alt,I Altsybeev,MN Anaam,C Andrei,A Andronic,V Anguelov,F Antinori,P Antonioli,C Anuj,N Apadula,L Aphecetche,H Appelshäuser,S Arcelli,R Arnaldi,IC Arsene,M Arslandok,A Augustinus,R Averbeck,S Aziz,MD Azmi,A Badalà,YW Baek,X Bai,R Bailhache,Y Bailung,R Bala,A Balbino,A Baldisseri,B Balis,D Banerjee,Z Banoo,R Barbera,L Barioglio,M Barlou,GG Barnaföldi,LS Barnby,V Barret,L Barreto,C Bartels,K Barth,E Bartsch,F Baruffaldi,N Bastid,S Basu,G Batigne,D Battistini,B Batyunya,D Bauri,JL Bazo Alba,IG Bearden,C Beattie,P Becht,D Behera,I Belikov,ADC Bell Hechavarria,F Bellini,R Bellwied,S Belokurova,V Belyaev,G Bencedi,S Beole,A Bercuci,Y Berdnikov,A Berdnikova,L Bergmann,MG Besoiu,L Betev,PP Bhaduri,A Bhasin,IR Bhat,MA Bhat,B Bhattacharjee,L Bianchi,N Bianchi,J Bielčík,J Bielčíková,J Biernat,A Bilandzic,G Biro,S Biswas,JT Blair,D Blau,MB Blidaru,N Bluhme,C Blume,G Boca,F Bock,T Bodova,A Bogdanov,S Boi,J Bok,L Boldizsár,A Bolozdynya,M Bombara,PM Bond,G Bonomi,H Borel,A Borissov,H Bossi,E Botta,L Bratrud,P Braun-Munzinger,M Bregant,M Broz,GE Bruno,MD Buckland,D Budnikov,H Buesching,S Bufalino,O Bugnon,P Buhler,Z Buthelezi,JB Butt,A Bylinkin,SA Bysiak,M Cai,H Caines,A Caliva,E Calvo Villar,JMM Camacho,P Camerini,FDM Canedo,M Carabas,F Carnesecchi,R Caron,J Castillo Castellanos,F Catalano

Journal

Journal of Instrumentation

Published Date

2024/2/29

Luminosity determination within the ALICE experiment is based on the measurement, in van der Meer scans, of the cross sections for visible processes involving one or more detectors (visible cross sections). In 2015 and 2018, the Large Hadron Collider provided Pb–Pb collisions at a centre-of-mass energy per nucleon pair of

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The h-index of Igor Altsybeev has been 97 since 2020 and 126 in total.

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resonance production in Pb-Pb collisions at TeV

Measurement of beauty-quark production in pp collisions at TeV via non-prompt D mesons

System-size dependence of the hadronic rescattering effect at energies available at the CERN Large Hadron Collider

Systematic study of flow vector decorrelation in TeV Pb-Pb collisions

Femtoscopic correlations of identical charged pions and kaons in collisions at TeV with event-shape selection

Suppression in Pb-Pb Collisions at the LHC

Measurement of baryon production and branching-fraction ratio in pp collisions at = 13 TeV

Systematic study of flow vector decorrelation in√ sNN= 5.02 TeV Pb–Pb collisions

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are the top articles of Igor Altsybeev at St. Petersburg State University.

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Igor Altsybeev has 73,685 citations in total.

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