J. L. Palomino (Jose L. Palomino Gallo)

Illinois Institute of Technology

H-index: 51

North America-United States

About J. L. Palomino (Jose L. Palomino Gallo)

J. L. Palomino (Jose L. Palomino Gallo), With an exceptional h-index of 51 and a recent h-index of 43 (since 2020), a distinguished researcher at Illinois Institute of Technology, specializes in the field of Neutrino, experimental.

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

Search for a sub-eV sterile neutrino using Daya Bay's full dataset

First measurement of the yield of He isotopes produced in liquid scintillator by cosmic-ray muons at Daya Bay

Charged-current non-standard neutrino interactions at Daya Bay

Final Measurement of the Antineutrino Energy Spectrum with the PROSPECT-I Detector at HFIR

Calibration strategy of the PROSPECT-II detector with external and intrinsic sources

Improved measurement of the evolution of the reactor antineutrino flux and spectrum at Daya Bay

Precision measurement of reactor antineutrino oscillation at kilometer-scale baselines by Daya Bay

Solar neutrino measurements using the full data period of Super-Kamiokande-IV

J. L. Palomino (Jose L. Palomino Gallo) Information

University	Illinois Institute of Technology
Position	___
Citations(all)	9837
Citations(since 2020)	6515
Cited By	5805
hIndex(all)	51
hIndex(since 2020)	43
i10Index(all)	86
i10Index(since 2020)	83
Email	Access Email
University Profile Page	Illinois Institute of Technology

J. L. Palomino (Jose L. Palomino Gallo) Skills & Research Interests

Neutrino

experimental

Top articles of J. L. Palomino (Jose L. Palomino Gallo)

Search for a sub-eV sterile neutrino using Daya Bay's full dataset

Authors

FP An,WD Bai,AB Balantekin,M Bishai,S Blyth,GF Cao,J Cao,JF Chang,Y Chang,HS Chen,HY Chen,SM Chen,Y Chen,YX Chen,ZY Chen,J Cheng,YC Cheng,ZK Cheng,JJ Cherwinka,MC Chu,JP Cummings,O Dalager,FS Deng,XY Ding,YY Ding,MV Diwan,T Dohnal,D Dolzhikov,J Dove,KV Dugas,HY Duyang,DA Dwyer,JP Gallo,M Gonchar,GH Gong,H Gong,WQ Gu,JY Guo,L Guo,XH Guo,YH Guo,Z Guo,RW Hackenburg,Y Han,S Hans,M He,KM Heeger,YK Heng,YK Hor,YB Hsiung,BZ Hu,JR Hu,T Hu,ZJ Hu,HX Huang,JH Huang,XT Huang,YB Huang,P Huber,DE Jaffe,KL Jen,XL Ji,XP Ji,RA Johnson,D Jones,L Kang,SH Kettell,S Kohn,M Kramer,TJ Langford,J Lee,JHC Lee,RT Lei,R Leitner,JKC Leung,F Li,HL Li,JJ Li,QJ Li,RH Li,S Li,SC Li,WD Li,XN Li,XQ Li,YF Li,ZB Li,H Liang,CJ Lin,GL Lin,S Lin,JJ Ling,JM Link,L Littenberg,BR Littlejohn,JC Liu,JL Liu,JX Liu,C Lu,HQ Lu,KB Luk,BZ Ma,XB Ma,XY Ma,YQ Ma,RC Mandujano,C Marshall,KT McDonald,RD McKeown,Y Meng,J Napolitano,D Naumov,E Naumova,TMT Nguyen,JP Ochoa-Ricoux,A Olshevskiy,J Park,S Patton,JC Peng,CSJ Pun,FZ Qi,M Qi,X Qian,N Raper,J Ren,C Morales Reveco,R Rosero,B Roskovec,XC Ruan,B Russell,H Steiner,JL Sun,T Tmej,W-H Tse,CE Tull,YC Tung,B Viren,V Vorobel,CH Wang,J Wang,M Wang,NY Wang,RG Wang,W Wang,X Wang,YF Wang,Z Wang,ZM Wang,HY Wei,LH Wei

Journal

arXiv preprint arXiv:2404.01687

Published Date

2024/4/2

This Letter presents results of a search for the mixing of a sub-eV sterile neutrino based on the full data sample of the Daya Bay Reactor Neutrino Experiment, collected during 3158 days of detector operation, which contains reactor \anue candidates identified as inverse beta-decay interactions followed by neutron-capture on gadolinium. The result was obtained in the minimally extended 3+1 neutrino mixing model. The analysis benefits from a doubling of the statistics of our previous result and from improvements of several important systematic uncertainties. The results are consistent with the standard three-neutrino mixing model and no significant signal of a sub-eV sterile neutrino was found. Exclusion limits are set by both Feldman-Cousins and CLs methods. Light sterile neutrino mixing with can be excluded at 95\% confidence level in the region of eV eV. This result represents the world-leading constraints in the region of eV eV.

First measurement of the yield of He isotopes produced in liquid scintillator by cosmic-ray muons at Daya Bay

Authors

Journal

arXiv preprint arXiv:2402.05383

Published Date

2024/2/8

Daya Bay presents the first measurement of cosmogenic He isotope production in liquid scintillator, using an innovative method for identifying cascade decays of He and its child isotope, Li. We also measure the production yield of Li isotopes using well-established methodology. The results, in units of 10gcm, are 0.3070.042, 0.3410.040, and 0.5460.076 for He, and 6.730.73, 6.750.70, and 13.740.82 for Li at average muon energies of 63.9~GeV, 64.7~GeV, and 143.0~GeV, respectively. The measured production rate of He isotopes is more than an order of magnitude lower than any other measurement of cosmogenic isotope production. It replaces the results of previous attempts to determine the ratio of He to Li production that yielded a wide range of limits from 0 to 30\%. The results provide future liquid-scintillator-based experiments with improved ability to predict cosmogenic backgrounds.

Charged-current non-standard neutrino interactions at Daya Bay

Authors

Journal

arXiv preprint arXiv:2401.02901

Published Date

2024/1/5

The full data set of the Daya Bay reactor neutrino experiment is used to probe the effect of the charged current non-standard interactions (CC-NSI) on neutrino oscillation experiments. Two different approaches are applied and constraints on the corresponding CC-NSI parameters are obtained with the neutrino flux taken from the Huber-Mueller model with a uncertainty. Both approaches are performed with the analytical expressions of the effective survival probability valid up to all orders in the CC-NSI parameters. For the quantum mechanics-based approach (QM-NSI), the constraints on the CC-NSI parameters and are extracted with and without the assumption that the effects of the new physics are the same in the production and detection processes, respectively. The approach based on the effective field theory (EFT-NSI) deals with four types of CC-NSI represented by the parameters . For both approaches, the results for the CC-NSI parameters are shown for cases with various fixed values of the CC-NSI and the Dirac CP-violating phases, and when they are allowed to vary freely. We find that constraints on the QM-NSI parameters and from the Daya Bay experiment alone can reach the order for the former and for the latter, while for EFT-NSI parameters , we obtain for both cases.

Final Measurement of the Antineutrino Energy Spectrum with the PROSPECT-I Detector at HFIR

Authors

M Andriamirado,AB Balantekin,CD Bass,DE Bergeron,EP Bernard,NS Bowden,CD Bryan,R Carr,T Classen,AJ Conant,G Deichert,A Delgado,MV Diwan,MJ Dolinski,A Erickson,BT Foust,JK Gaison,A Galindo-Uribari,CE Gilbert,S Gokhale,C Grant,S Hans,AB Hansell,KM Heeger,B Heffron,DE Jaffe,S Jayakumar,X Ji,DC Jones,J Koblanski,P Kunkle,O Kyzylova,D LaBelle,CE Lane,TJ Langford,J LaRosa,BR Littlejohn,X Lu,J Maricic,MP Mendenhall,AM Meyer,R Milincic,PE Mueller,HP Mumm,J Napolitano,R Neilson,JA Nikkel,S Nour,JL Palomino Gallo,DA Pushin,X Qian,C Roca,R Rosero,M Searles,PT Surukuchi,F Sutanto,MA Tyra,D Venegas-Vargas,PB Weatherly,J Wilhelmi,A Woolverton,M Yeh,C Zhang,X Zhang,Prospect Collaboration

Journal

Physical review letters

Published Date

2023/7/11

This Letter reports one of the most precise measurements to date of the antineutrino spectrum from a purely U 235-fueled reactor, made with the final dataset from the PROSPECT-I detector at the High Flux Isotope Reactor. By extracting information from previously unused detector segments, this analysis effectively doubles the statistics of the previous PROSPECT measurement. The reconstructed energy spectrum is unfolded into antineutrino energy and compared with both the Huber-Mueller model and a spectrum from a commercial reactor burning multiple fuel isotopes. A local excess over the model is observed in the 5–7 MeV energy region. Comparison of the PROSPECT results with those from commercial reactors provides new constraints on the origin of this excess, disfavoring at 2.0 and 3.7 standard deviations the hypotheses that antineutrinos from U 235 are solely responsible and noncontributors to the …

Calibration strategy of the PROSPECT-II detector with external and intrinsic sources

Authors

M Andriamirado,AB Balantekin,CD Bass,DE Bergeron,EP Bernard,NS Bowden,CD Bryan,R Carr,T Classen,AJ Conant,A Delgado,MV Diwan,MJ Dolinski,A Erickson,BT Foust,JK Gaison,A Galindo-Uribarri,CE Gilbert,S Gokhale,C Grant,S Hans,AB Hansell,KM Heeger,B Heffron,DE Jaffe,S Jayakumar,X Ji,DC Jones,J Koblanski,P Kunkle,CE Lane,TJ Langford,J LaRosa,BR Littlejohn,X Lu,J Maricic,MP Mendenhall,AM Meyer,R Milincic,PE Mueller,HP Mumm,J Napolitano,R Neilson,JA Nikkel,S Nour,JL Palomino,DA Pushin,X Qian,C Roca,R Rosero,M Searles,PT Surukuchi,F Sutanto,MA Tyra,D Venegas-Vargas,PB Weatherly,J Wilhelmi,A Woolverton,M Yeh,C Zhang,X Zhang,Prospect Collaboration

Journal

Journal of Instrumentation

Published Date

2023/6/8

This paper presents an energy calibration scheme for an upgraded reactor antineutrino detector for the Precision Reactor Oscillation and Spectrum Experiment (PROSPECT). The PROSPECT collaboration is preparing an upgraded detector, PROSPECT-II (P-II), to advance capabilities for the investigation of fundamental neutrino physics, fission processes and associated reactor neutrino flux, and nuclear security applications. P-II will expand the statistical power of the original PROSPECT (PI) dataset by at least an order of magnitude. The new design builds upon previous PI design and focuses on improving the detector robustness and long-term stability to enable multi-year operation at one or more sites. The new design optimizes the fiducial volume by elimination of dead space previously occupied by internal calibration channels, which in turn necessitates the external deployment. In this paper, we describe a …

Improved measurement of the evolution of the reactor antineutrino flux and spectrum at Daya Bay

Authors

FP An,WD Bai,AB Balantekin,M Bishai,S Blyth,GF Cao,J Cao,JF Chang,Y Chang,HS Chen,HY Chen,SM Chen,Y Chen,YX Chen,J Cheng,Y-C Cheng,ZK Cheng,JJ Cherwinka,MC Chu,JP Cummings,O Dalager,FS Deng,YY Ding,MV Diwan,T Dohnal,D Dolzhikov,J Dove,KV Dugas,HY Duyang,DA Dwyer,JP Gallo,M Gonchar,GH Gong,H Gong,WQ Gu,JY Guo,L Guo,XH Guo,YH Guo,Z Guo,RW Hackenburg,Y Han,S Hans,M He,KM Heeger,YK Heng,YK Hor,YB Hsiung,BZ Hu,JR Hu,T Hu,ZJ Hu,HX Huang,JH Huang,XT Huang,YB Huang,P Huber,DE Jaffe,KL Jen,XL Ji,XP Ji,RA Johnson,D Jones,L Kang,SH Kettell,S Kohn,M Kramer,TJ Langford,J Lee,JHC Lee,RT Lei,R Leitner,JKC Leung,F Li,HL Li,JJ Li,QJ Li,RH Li,S Li,SC Li,WD Li,XN Li,XQ Li,YF Li,ZB Li,H Liang,CJ Lin,GL Lin,S Lin,JJ Ling,JM Link,L Littenberg,BR Littlejohn,JC Liu,JL Liu,JX Liu,C Lu,HQ Lu,KB Luk,BZ Ma,XB Ma,XY Ma,YQ Ma,RC Mandujano,C Marshall,KT McDonald,RD McKeown,Y Meng,J Napolitano,D Naumov,E Naumova,TMT Nguyen,JP Ochoa-Ricoux,A Olshevskiy,J Park,S Patton,JC Peng,CSJ Pun,FZ Qi,M Qi,X Qian,N Raper,J Ren,C Morales Reveco,R Rosero,B Roskovec,XC Ruan,B Russell,H Steiner,JL Sun,T Tmej,K Treskov,W-H Tse,CE Tull,YC Tung,B Viren,V Vorobel,CH Wang,J Wang,M Wang,NY Wang,RG Wang,W Wang,X Wang,Y Wang,YF Wang,Z Wang,ZM Wang,HY Wei,LH Wei

Journal

Physical review letters

Published Date

2023/5/22

Reactor neutrino experiments play a crucial role in advancing our knowledge of neutrinos. In this Letter, the evolution of the flux and spectrum as a function of the reactor isotopic content is reported in terms of the inverse-beta-decay yield at Daya Bay with 1958 days of data and improved systematic uncertainties. These measurements are compared with two signature model predictions: the Huber-Mueller model based on the conversion method and the SM2018 model based on the summation method. The measured average flux and spectrum, as well as the flux evolution with the Pu 239 isotopic fraction, are inconsistent with the predictions of the Huber-Mueller model. In contrast, the SM2018 model is shown to agree with the average flux and its evolution but fails to describe the energy spectrum. Altering the predicted inverse-beta-decay spectrum from Pu 239 fission does not improve the agreement with the …

Precision measurement of reactor antineutrino oscillation at kilometer-scale baselines by Daya Bay

Authors

FP An,WD Bai,AB Balantekin,M Bishai,S Blyth,GF Cao,J Cao,JF Chang,Y Chang,HS Chen,HY Chen,SM Chen,Y Chen,YX Chen,ZY Chen,J Cheng,ZK Cheng,JJ Cherwinka,MC Chu,JP Cummings,O Dalager,FS Deng,YY Ding,XY Ding,MV Diwan,T Dohnal,D Dolzhikov,J Dove,HY Duyang,DA Dwyer,JP Gallo,M Gonchar,GH Gong,H Gong,WQ Gu,JY Guo,L Guo,XH Guo,YH Guo,Z Guo,RW Hackenburg,Y Han,S Hans,M He,KM Heeger,YK Heng,YK Hor,YB Hsiung,BZ Hu,JR Hu,T Hu,ZJ Hu,HX Huang,JH Huang,XT Huang,YB Huang,P Huber,DE Jaffe,KL Jen,XL Ji,XP Ji,RA Johnson,D Jones,L Kang,SH Kettell,S Kohn,M Kramer,TJ Langford,J Lee,JHC Lee,RT Lei,R Leitner,JKC Leung,F Li,HL Li,JJ Li,QJ Li,RH Li,S Li,SC Li,WD Li,XN Li,XQ Li,YF Li,ZB Li,H Liang,CJ Lin,GL Lin,S Lin,JJ Ling,JM Link,L Littenberg,BR Littlejohn,JC Liu,JL Liu,JX Liu,C Lu,HQ Lu,KB Luk,BZ Ma,XB Ma,XY Ma,YQ Ma,RC Mandujano,C Marshall,KT McDonald,RD McKeown,Y Meng,J Napolitano,D Naumov,E Naumova,TMT Nguyen,JP Ochoa-Ricoux,A Olshevskiy,H-R Pan,J Park,S Patton,JC Peng,CSJ Pun,FZ Qi,M Qi,X Qian,N Raper,J Ren,C Morales Reveco,R Rosero,B Roskovec,XC Ruan,B Russell,H Steiner,JL Sun,T Tmej,K Treskov,W-H Tse,CE Tull,B Viren,V Vorobel,CH Wang,J Wang,M Wang,NY Wang,RG Wang,W Wang,X Wang,Y Wang,YF Wang,Z Wang,ZM Wang,HY Wei,LH Wei

Journal

Physical review letters

Published Date

2023/4/21

We present a new determination of the smallest neutrino mixing angle θ 13 and the mass-squared difference Δ m 32 2 using a final sample of 5.55× 10 6 inverse beta-decay (IBD) candidates with the final-state neutron captured on gadolinium. This sample is selected from the complete dataset obtained by the Daya Bay reactor neutrino experiment in 3158 days of operation. Compared to the previous Daya Bay results, selection of IBD candidates has been optimized, energy calibration refined, and treatment of backgrounds further improved. The resulting oscillation parameters are sin 2 2 θ 13= 0.0851±0.0024, Δ m 32 2=(2.466±0.060)× 10− 3 eV 2 for the normal mass ordering or Δ m 32 2=−(2.571±0.060)× 10− 3 eV 2 for the inverted mass ordering.

Solar neutrino measurements using the full data period of Super-Kamiokande-IV

Authors

K Abe,C Bronner,Y Hayato,K Hiraide,K Hosokawa,K Ieki,M Ikeda,S Imaizumi,K Iyogi,J Kameda,Y Kanemura,R Kaneshima,Y Kashiwagi,Y Kataoka,Y Kato,Y Kishimoto,S Miki,S Mine,M Miura,T Mochizuki,S Moriyama,Y Nagao,M Nakahata,Y Nakano,S Nakayama,Y Noguchi,T Okada,K Okamoto,A Orii,K Sato,H Sekiya,H Shiba,K Shimizu,M Shiozawa,Y Sonoda,Y Suzuki,A Takeda,Y Takemoto,A Takenaka,H Tanaka,S Watanabe,T Yano,S Han,T Kajita,K Okumura,T Tashiro,T Tomiya,R Wang,X Wang,S Yoshida,D Bravo-Berguno,P Fernandez,L Labarga,N Ospina,B Zaldivar,BW Pointon,F d M Blaszczyk,C Kachulis,E Kearns,JL Raaf,JL Stone,L Wan,T Wester,J Bian,NJ Griskevich,WR Kropp,S Locke,MB Smy,HW Sobel,V Takhistov,P Weatherly,A Yankelevich,KS Ganezer,J Hill,MC Jang,JY Kim,S Lee,IT Lim,DH Moon,RG Park,B Bodur,K Scholberg,CW Walter,A Beauchene,L Bernard,A Coffani,O Drapier,S El Hedri,A Giampaolo,J Imber,Th A Mueller,P Paganini,R Rogly,B Quilain,A Santos,T Nakamura,JS Jang,LN Machado,JG Learned,S Matsuno,N Iovine,K Choi,S Cao,LHV Anthony,RP Litchfield,N Prouse,D Marin,M Scott,AA Sztuc,Y Uchida,V Berardi,MG Catanesi,RA Intonti,E Radicioni,NF Calabria,G De Rosa,A Langella,G Collazuol,F Iacob,M Lamoureux,M Mattiazzi,L Ludovici,M Gonin,L Perisse,G Pronost,C Fujisawa,Y Maekawa,Y Nishimura,R Okazaki,M Friend,T Hasegawa,T Ishida,M Jakkapu,T Kobayashi,T Matsubara,T Nakadaira,K Nakamura,Y Oyama,K Sakashita,T Sekiguchi,T Tsukamoto,T Boschi,N Bhuiyan,GT Burton,J Gao,A Goldsack,T Katori,F Di Lodovico,J Migenda,S Molina Sedgwick

Journal

arXiv preprint arXiv:2312.12907

Published Date

2023/12/20

An analysis of solar neutrino data from the fourth phase of Super-Kamiokande~(SK-IV) from October 2008 to May 2018 is performed and the results are presented. The observation time of the data set of SK-IV corresponds to ~days and the total live time for all four phases is ~days. For more precise solar neutrino measurements, several improvements are applied in this analysis: lowering the data acquisition threshold in May 2015, further reduction of the spallation background using neutron clustering events, precise energy reconstruction considering the time variation of the PMT gain. The observed number of solar neutrino events in --~MeV electron kinetic energy region during SK-IV is events. Corresponding solar neutrino flux is $(2.314 \pm 0.014\, \rm{(stat.)} \pm 0.040 \, \rm{(syst.)}) \times 10^{6}~\mathrm{cm^{-2}\,s^{-1}}$, assuming a pure electron-neutrino flavor component without neutrino oscillations. The flux combined with all SK phases up to SK-IV is $(2.336 \pm 0.011\, \rm{(stat.)} \pm 0.043 \, \rm{(syst.)}) \times 10^{6}~\mathrm{cm^{-2}\,s^{-1}}$. Based on the neutrino oscillation analysis from all solar experiments, including the SK ~days data set, the best-fit neutrino oscillation parameters are and , with a deviation of about 1.5 from the parameter obtained by KamLAND. The best-fit neutrino oscillation parameters obtained from all solar experiments and KamLAND are and .

Joint Measurement of the Antineutrino Spectrum by PROSPECT and STEREO

Authors

Helena Almazán,M Andriamirado,AB Balantekin,HR Band,CD Bass,DE Bergeron,L Bernard,A Blanchet,A Bonhomme,NS Bowden,CD Bryan,C Buck,T Classen,AJ Conant,G Deichert,P del Amo Sanchez,A Delgado,MV Diwan,MJ Dolinski,I El Atmani,A Erickson,BT Foust,JK Gaison,A Galindo-Uribarri,CE Gilbert,S Hans,AB Hansell,KM Heeger,B Heffron,DE Jaffe,S Jayakumar,X Ji,DC Jones,J Koblanski,O Kyzylova,L Labit,J Lamblin,CE Lane,TJ Langford,J LaRosa,A Letourneau,D Lhuillier,M Licciardi,M Lindner,BR Littlejohn,X Lu,J Maricic,T Materna,MP Mendenhall,AM Meyer,R Milincic,PE Mueller,HP Mumm,J Napolitano,R Neilson,JA Nikkel,S Nour,JL Palomino,H Pessard,DA Pushin,X Qian,J-S Réal,J-S Ricol,C Roca,R Rogly,R Rosero,T Salagnac,V Savu,S Schoppmann,M Searles,V Sergeyeva,T Soldner,A Stutz,PT Surukuchi,MA Tyra,RL Varner,D Venegas-Vargas,M Vialat,PB Weatherly,C White,J Wilhelmi,A Woolverton,M Yeh,C Zhang,X Zhang,Prospect Collaboration,Stereo Collaboration

Journal

Physical Review Letters

Published Date

2022/2/22

The PROSPECT and STEREO collaborations present a combined measurement of the pure U 235 antineutrino spectrum, without site specific corrections or detector-dependent effects. The spectral measurements of the two highest precision experiments at research reactors are found to be compatible with χ 2/ndf= 24.1/21, allowing a joint unfolding of the prompt energy measurements into antineutrino energy. This ν e energy spectrum is provided to the community, and an excess of events relative to the Huber model is found in the 5–6 MeV region. When a Gaussian bump is fitted to the excess, the data-model χ 2 value is improved, corresponding to a 2.4 σ significance.

Neutron tagging following atmospheric neutrino events in a water Cherenkov detector

Authors

K Abe,Y Haga,Y Hayato,K Hiraide,K Ieki,M Ikeda,S Imaizumi,K Iyogi,J Kameda,Y Kanemura,Y Kataoka,Y Kato,Y Kishimoto,S Miki,S Mine,M Miura,T Mochizuki,S Moriyama,Y Nagao,M Nakahata,T Nakajima,Y Nakano,S Nakayama,T Okada,K Okamoto,A Orii,K Sato,H Sekiya,M Shiozawa,Y Sonoda,Y Suzuki,A Takeda,Y Takemoto,A Takenaka,H Tanaka,S Tasaka,T Tomura,K Ueno,S Watanabe,T Yano,T Yokozawa,S Han,T Irvine,T Kajita,I Kametani,K Kaneyuki,KP Lee,T McLachlan,K Okumura,E Richard,T Tashiro,R Wang,J Xia,GD Megias,D Bravo-Berguño,L Labarga,B Zaldivar,M Goldhaber,FDM Blaszczyk,J Gustafson,C Kachulis,E Kearns,JL Raaf,JL Stone,LR Sulak,S Sussman,L Wan,T Wester,BW Pointon,J Bian,G Carminati,M Elnimr,NJ Griskevich,WR Kropp,S Locke,A Renshaw,MB Smy,HW Sobel,V Takhistov,P Weatherly,KS Ganezer,BL Hartfiel,J Hill,WE Keig,N Hong,JY Kim,IT Lim,RG Park,T Akiri,B Bodur,A Himmel,Z Li,Erin O'Sullivan,K Scholberg,CW Walter,T Wongjirad,L Bernard,A Coffani,O Drapier,S El Hedri,A Giampaolo,J Imber,Th A Mueller,P Paganini,B Quilain,T Ishizuka,T Nakamura,JS Jang,K Choi,JG Learned,S Matsuno,SN Smith,J Amey,LHV Anthony,RP Litchfield,WY Ma,D Marin,AA Sztuc,Y Uchida,MO Wascko,V Berardi,MG Catanesi,RA Intonti,E Radicioni,NF Calabria,G De Rosa,LN Machado,G Collazuol,F Iacob,M Lamoureux,N Ospina,L Ludovici,M Gonin,G Pronost,Y Maekawa,Y Nishimura,S Cao,M Friend,T Hasegawa,T Ishida,T Ishii,M Jakkapu,T Kobayashi,T Matsubara,T Nakadaira,K Nakamura,Y Oyama,K Sakashita,T Sekiguchi,T Tsukamoto

Journal

Journal of Instrumentation

Published Date

2022/10/18

The Super-Kamiokande (SK) water Cherenkov detector is utilized to study a wide range of physics; it has measured neutrinos from various sources (solar [1], atmospheric [2], and accelerator [3]), while searching for nucleon decay [4] and supernova neutrinos [5]. While SK efficiently detects relativistic charged particles with small masses, like electrons, muons, and pions, heavy particles with low momentum or no charge, such as protons and neutrons, produce little or no Cherenkov light and cannot be easily detected. However, the ability to detect neutrons, though challenging, is expected to improve the sensitivity of various analyses [6]. As an example, the detection of neutrons can improve the statistical separation of neutrinos and anti-neutrinos since neutrino events are expected to produce fewer neutrons than anti-neutrino events. The clearest example is the anti-neutrino charged current quasi-elastic (CCQE …

Testing Non-Standard Interactions Between Solar Neutrinos and Quarks with Super-Kamiokande

Authors

P Weatherly,K Abe,C Bronner,Y Hayato,K Hiraide,M Ikeda,K Iyogi,J Kameda,Y Kanemura,Y Kataoka,Y Kato,Y Kishimoto,S Miki,M Miura,S Moriyama,T Mochizuki,M Nakahata,Y Nakano,S Nakayama,T Okada,K Okamoto,A Orii,G Pronost,K Sato,H Sekiya,M Shiozawa,Y Sonoda,Y Suzuki,A Takeda,Y Takemoto,A Takenaka,H Tanaka,S Tasaka,X Wang,S Watanabe,T Yano,S Han,T Kajita,K Kaneyuki,K Okumura,T Tashiro,R Wang,J Xia,GD Megias,L Labarga,B Zaldivar,BW Pointon,F d M Blaszczyk,C Kachulis,E Kearns,JL Raaf,JL Stone,LR Sulak,S Sussman,L Wan,T Wester,S Berkman,S Tobayama,J Bian,M Elnimr,NJ Griskevich,WR Kropp,S Locke,S Mine,MB Smy,HW Sobel,V Takhistov,A Yankelevich,KS Ganezer,J Hill,JY Kim,IT Lim,RG Park,B Bodur,Z Li,K Scholberg,CW Walter,L Bernard,A Coffani,O Drapier,A Giampaolo,S El Hedri,J Imber,Th A Mueller,P Paganini,B Quilain,AD Santos,T Ishizuka,T Nakamura,JS Jang,JG Learned,S Matsuno,S Cao,J Amey,LHV Anthony,RP Litchfield,WY Ma,D Martin,M Scott,AA Sztuc,Y Uchida,MO Wascko,V Berardi,MG Catanesi,RA Intonti,E Radicioni,NF Calabria,LN Machado,G De Rosa,G Collazuol,F Iacob,M Lamoureux,M Mattiazzi,N Ospina,L Ludovici,M Gonin,Y Maekawa,Y Nishimura,M Friend,T Hasegawa,T Ishida,M Jakkapu,T Kobayashi,T Matsubara,T Nakadaira,K Nakamura,Y Oyama,K Sakashita,T Sekiguchi,T Tsukamoto,T Boschi,F Di Lodovico,J Gao,T Katori,J Migenda,M Taani,S Zsoldos,KE Abe,M Hasegawa,Y Isobe,Y Kotsar,H Miyabe,H Ozaki,T Sugimoto,AT Suzuki,Y Takeuchi,S Yamamoto,Y Ashida,J Feng,T Hayashino

Journal

arXiv preprint arXiv:2203.11772

Published Date

2022/3/22

Non-Standard Interactions (NSI) between neutrinos and matter affect the neutrino flavor oscillations. Due to the high matter density in the core of the Sun, solar neutrinos are suited to probe these interactions. Using the kton-yr exposure of Super-Kamiokande to B solar neutrinos, we search for the presence of NSI. Our data favors the presence of NSI with down quarks at 1.8, and with up quarks at 1.6, with the best fit NSI parameters being () = (-3.3, -3.1) for -quarks and () = (-2.5, -3.1) for -quarks. After combining with data from the Sudbury Neutrino Observatory and Borexino, the significance increases by 0.1.

Design, construction and operation of the ProtoDUNE-SP Liquid Argon TPC

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,D Adams,M Adinolfi,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Ali-Mohammadzadeh,T Alion,K Allison,S Alonso Monsalve,M Alrashed,C Alt,A Alton,P Amedo,J Anderson,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,A Ariga,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,P Baesso,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,GJ Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,E Belchior,JBR Battat,F Battisti,F Bay,JL Bazo Alba,JF Beacom,E Bechetoille,B Behera,L Bellantoni,G Bellettini,V Bellini,O Beltramello,D Belver,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,H Berns,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,TJC Bezerra,M Bhattacharjee,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,M Bongrand,F Bonini,A Booth,C Booth,F Boran,S Bordoni,A Borkum,T Boschi,N Bostan,P Bour,C Bourgeois,SB Boyd,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,C Brew,E Brianne,SJ Brice,C Brizzolari,C Bromberg,G Brooijmans,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan,H Budd,I Butorov,I Cagnoli,D Caiulo,R Calabrese,P Calafiura,J Calcutt

Journal

Journal of instrumentation

Published Date

2022/1/4

The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber (LArTPC) that was constructed and operated in the CERN North Area at the end of the H4 beamline. This detector is a prototype for the first far detector module of the Deep Underground Neutrino Experiment (DUNE), which will be constructed at the Sandford Underground Research Facility (SURF) in Lead, South Dakota, USA The ProtoDUNE-SP detector incorporates full-size components as designed for DUNE and has an active volume of 7× 6× 7.2 m^{3}. The H4 beam delivers incident particles with well-measured momenta and high-purity particle identification. ProtoDUNE-SP's successful operation between 2018 and 2020 demonstrates the effectiveness of the single-phase far detector design. This paper describes the design, construction, assembly and operation of the detector components.

arXiv: High Energy Physics Opportunities Using Reactor Antineutrinos

Authors

C Awe,XT Zhang,N Giudice,HK Xu,IS Yeo,ZP Zhang,N Kutovskiy,BZ Hu,V Vorobel,DC Jones,JX Ye,S Li,HH Jia,B Zhuang,S Fargher,Y Yang,W Huo,J Borg,JW Zhang,F Petrucci,E Doroshkevich,SY Kim,L Sabarots,CY Yu,J Yoo,N Zaitseva,K Walkup,P Harrington,C Lombardo,M Wright,SCF Wong,A Broniatowski,ZM Wang,I Lippi,YW Chen,J Zhao,E Paolini,J Zhou,J Tang,M Pitt,D Stefanik,C Mariani,L Dumoulin,A Lubashevskiy,N Guardone,MY Pac,J Johnston,M Andriamirado,A Bonhomme,YX Chen,X Wang,J He,BL Young,P Poussot,M Giammarchi,YD Kim,T Subedi,A Babic,DW Mayer,ZY You,L Kang,DA Dwyer,J Maalmi,Z Guo,J Li,M Grassi,F Muheim,R Kaiser,ZY Zhang,V Antonelli,O Sramek,L Guo,HB Liu,HR Pan,A Haghighat,T Adam,P Hellmuth,YK Cai,X Ji,FY Zhao,RX Liu,AM Meyer,C Giunti,K Ni,A Mitra,C Metelko,K Nishimura,HN Gan,M Robens,D Corti,HM Lee,JS Lu,N Zafar,MA Tyra,YG Xie,T Lin,D Jones,G Varner,J Park,S Ahmad,S Dazeley,B Asavapibhop,SY Liu,X Chen,H Steiner,I Mitchell,YF Wang,ZY Deng,T Classen,RT Lei,YD Zeng,N Rodphai,A Watcharangkool,C Wiebusch,M Wang,X Qian,A Stahl,Y Pei,OA Akindele,A Krasnoperov,M Karagounis,S Monteil,X Lu,J Gribble,C Wysotzki,W He,YJ Mao,AB Yang,YM Zhang,K Stankevich,DE Jaffe,XB Ma,HLH Wong,C Sirignano,T Soldner,A Triossi,S Heine,XL Sun,JH Choi,TJ Langford,F Sawy,R Rosero,T Li,P Saggese,M Bergevin,K Treskov,Y Gu,A Erickson,V Kudryavtsev,A Druetzler

Published Date

2022/3/14

Nuclear reactors are uniquely powerful, abundant, and flavor-pure sources of antineutrinos that continue to play a vital role in the US neutrino physics program. The US reactor antineutrino physics community is a diverse interest group encompassing many detection technologies and many particle physics topics, including Standard Model and short-baseline oscillations, BSM physics searches, and reactor flux and spectrum modelling. The community’s aims offer strong complimentary with numerous aspects of the wider US neutrino program and have direct relevance to most of the topical sub-groups composing the Snowmass 2021 Neutrino Frontier. Reactor neutrino experiments also have a direct societal impact and have become a strong workforce and technology development pipeline for DOE National Laboratories and universities.This white paper, prepared as a submission to the Snowmass 2021 community organizing exercise, will survey the state of the reactor antineutrino physics field and summarize the ways in which current and future reactor antineutrino experiments can play a critical role in advancing the field of particle physics in the next decade. As it is directed towards the Snowmass 2021 Neutrino Frontier, Sections 4 through 9 are organized around specific Topical Groups within that Frontier, with the relevant Topical Group specified in each Section’s title. Finally, to enable quick reference to the document’s main themes, two to four ‘Key Takeaways’ are provided at the beginning of each Section.

arXiv: Improved Measurement of the Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay

Authors

FP An,XT Zhang,HK Xu,ZJ Zhang,ZP Zhang,JL Sun,CG White,BZ Hu,V Vorobel,YF Li,M Ye,S Li,L Zhou,XH Guo,SQ Zhang,Y Wang,JM Link,FY Zhang,JR Hu,JW Zhang,YY Ding,HL Zhuang,L Zhan,RA Johnson,ZM Wang,Y Zeng,J Cao,J Zhao,RH Li,JC Liu,H Gong,V Zavadskyi,Y-C Cheng,FS Deng,JL Zhang,JHC Lee,CG Yang,J Dove,W Wang,JX Liu,C Morales Reveco,YX Chen,X Wang,BL Young,HQ Lu,HS Chen,N Raper,ZJ Hu,L Kang,DA Dwyer,RC Mandujano,Z Guo,S Kohn,JP Ochoa-Ricoux,KL Jen,ZY Zhang,JH Zou,XN Li,M Bishai,ZZ Xing,J Lee,L Guo,SH Kettell,ZK Cheng,E Worcester,GL Lin,GH Gong,TMT Nguyen,J Napolitano,HY Wei,WD Li,XQ Li,Y Chang,B Russell,Q Wu,T Xue,M Qi,R Leitner,D Jones,J Park,MV Diwan,HZ Yu,HY Duyang,H Steiner,RZ Zhao,YF Wang,RT Lei,HY Chen,YQ Ma,B Viren,M Wang,X Qian,JP Cummings,J Cheng,ZY Yu,Y Meng,YM Zhang,JP Gallo,Y Han,DE Jaffe,XY Ma,XB Ma,S Blyth,S Lin,XL Ji,Y Chen,TJ Langford,R Rosero,B Roskovec,M Gonchar,K Treskov,W-H Tse,BB Yue,HH Zhang,QJ Li,GF Cao,T Tmej,DR Wu,YB Huang,BZ Ma,SC Li,P Huber,A Olshevskiy,E Naumova,KV Dugas,JJ Ling,HL Li,M Yeh,JKC Leung,S Patton,YZ Yang,YB Hsiung,AB Balantekin,ZQ Xie,MC Chu,NY Wang,LJ Wen,KT McDonald,L Littenberg,FZ Qi,SM Chen,KM Heeger,F Li,M Kramer,JF Chang,XP Ji,YH Guo,JL Liu,D Naumov,JC Peng

Published Date

2022/10/3

Reactor neutrino experiments play a crucial role in advancing our knowledge of neutrinos. A precise measurement of reactor electron antineutrino flux and spectrum evolution can be key inputs in improving the knowledge of neutrino mass and mixing as well as reactor nuclear physics and searching for physics beyond the standard model. In this work, the evolution of the flux and spectrum as a function of the reactor isotopic content is reported in terms of the inverse-beta-decay yield at Daya Bay with 1958 days of data and improved systematic uncertainties. These measurements are compared with two signature model predictions: the Huber-Mueller model based on the conversion method and the SM2018 model based on the summation method. The measured average flux and spectrum, as well as their evolution with the 239Pu fraction, are inconsistent with the predictions of the Huber-Mueller model. In contrast, the SM2018 model is shown to agree with the average flux and its evolution but fails to describe the energy spectrum. Altering the predicted IBD spectrum from 239Pu does not improve the agreement with the measurement for either model. The models can be brought into better agreement with the measurements if either the predicted spectrum due to 235U is changed or the predicted 235U, 238U, 239Pu, and 241Pu spectra are changed in equal measure

High Energy Physics Opportunities Using Reactor Antineutrinos

Authors

C Awe

Published Date

2022/3/14

Nuclear reactors are uniquely powerful, abundant, and flavor-pure sources of antineutrinos that continue to play a vital role in the US neutrino physics program. The US reactor antineutrino physics community is a diverse interest group encompassing many detection technologies and many particle physics topics, including Standard Model and short-baseline oscillations, BSM physics searches, and reactor flux and spectrum modeling. The community's aims offer strong complimentary with numerous aspects of the wider US neutrino program and have direct relevance to most of the topical sub-groups composing the Snowmass 2021 Neutrino Frontier. Reactor neutrino experiments also have a direct societal impact and have become a strong workforce and technology development pipeline for DOE National Laboratories and universities. This white paper, prepared as a submission to the Snowmass 2021 community organizing exercise, will survey the state of the reactor antineutrino physics field and summarize the ways in which current and future reactor antineutrino experiments can play a critical role in advancing the field of particle physics in the next decade.

First measurement of high-energy reactor antineutrinos at Daya Bay

Authors

FP An,WD Bai,AB Balantekin,M Bishai,S Blyth,GF Cao,J Cao,JF Chang,Y Chang,HS Chen,HY Chen,SM Chen,Y Chen,YX Chen,J Cheng,ZK Cheng,JJ Cherwinka,MC Chu,JP Cummings,O Dalager,FS Deng,YY Ding,MV Diwan,T Dohnal,D Dolzhikov,J Dove,DA Dwyer,JP Gallo,M Gonchar,GH Gong,H Gong,WQ Gu,JY Guo,L Guo,XH Guo,YH Guo,Z Guo,RW Hackenburg,S Hans,M He,KM Heeger,YK Heng,YK Hor,YB Hsiung,BZ Hu,JR Hu,T Hu,ZJ Hu,HX Huang,JH Huang,XT Huang,YB Huang,P Huber,DE Jaffe,KL Jen,XL Ji,XP Ji,RA Johnson,D Jones,L Kang,SH Kettell,S Kohn,M Kramer,TJ Langford,J Lee,JHC Lee,RT Lei,R Leitner,JKC Leung,F Li,HL Li,JJ Li,QJ Li,RH Li,S Li,SC Li,WD Li,XN Li,XQ Li,YF Li,ZB Li,H Liang,CJ Lin,GL Lin,S Lin,JJ Ling,JM Link,L Littenberg,BR Littlejohn,JC Liu,JL Liu,JX Liu,C Lu,HQ Lu,KB Luk,BZ Ma,XB Ma,XY Ma,YQ Ma,RC Mandujano,C Marshall,KT McDonald,RD McKeown,Y Meng,J Napolitano,D Naumov,E Naumova,TMT Nguyen,JP Ochoa-Ricoux,A Olshevskiy,H-R Pan,J Park,S Patton,JC Peng,CSJ Pun,FZ Qi,M Qi,X Qian,N Raper,J Ren,C Morales Reveco,R Rosero,B Roskovec,XC Ruan,H Steiner,JL Sun,T Tmej,K Treskov,W-H Tse,CE Tull,B Viren,V Vorobel,CH Wang,J Wang,M Wang,NY Wang,RG Wang,W Wang,X Wang,Y Wang,YF Wang,Z Wang,ZM Wang,HY Wei,LH Wei,LJ Wen,K Whisnant,CG White,HLH Wong,E Worcester

Journal

Physical review letters

Published Date

2022/7/18

This Letter reports the first measurement of high-energy reactor antineutrinos at Daya Bay, with nearly 9000 inverse beta decay candidates in the prompt energy region of 8–12 MeV observed over 1958 days of data collection. A multivariate analysis is used to separate 2500 signal events from background statistically. The hypothesis of no reactor antineutrinos with neutrino energy above 10 MeV is rejected with a significance of 6.2 standard deviations. A 29% antineutrino flux deficit in the prompt energy region of 8–11 MeV is observed compared to a recent model prediction. We provide the unfolded antineutrino spectrum above 7 MeV as a data-based reference for other experiments. This result provides the first direct observation of the production of antineutrinos from several high-Q β isotopes in commercial reactors.

Physics Opportunities with PROSPECT-II

Authors

M Andriamirado,AB Balantekin,CD Bass,DE Bergeron,E Bernard,NS Bowden,CD Bryan,R Carr,T Classen,AJ Conant,G Deichert,A Delgado,MV Diwan,MJ Dolinski,A Erickson,BT Foust,JK Gaison,A Galindo-Uribari,CE Gilbert,S Gokhale,C Grant,S Hans,AB Hansell,KM Heeger,B Heffron,DE Jaffe,S Jayakumar,X Ji,DC Jones,J Koblanski,P Kunkle,O Kyzylova,CE Lane,TJ Langford,J LaRosa,BR Littlejohn,X Lu,J Maricic,MP Mendenhall,AM Meyer,R Milincic,PE Mueller,HP Mumm,J Napolitano,R Neilson,JA Nikkel,S Nour,JL Palomino,DA Pushin,X Qian,C Roca,R Rosero,M Searles,PT Surukuchi,F Sutanto,MA Tyra,RL Varner,D Venegas-Vargas,PB Weatherly,J Wilhelmi,A Woolverton,M Yeh,C Zhang,X Zhang

Journal

arXiv preprint arXiv:2202.12343

Published Date

2022/2/24

The PROSPECT experiment has substantially addressed the original 'Reactor Antineutrino Anomaly' by performing a high-resolution spectrum measurement from an enriched compact reactor core and a reactor model-independent sterile neutrino oscillation search based on the unique spectral distortions the existence of eV-scale sterile neutrinos would impart. But as the field has evolved, the current short-baseline (SBL) landscape supports many complex phenomenological interpretations, establishing a need for complementary experimental approaches to resolve the situation. While the global suite of SBL reactor experiments, including PROSPECT, have probed much of the sterile neutrino parameter space, there remains a large region above 1 eV that remains unaddressed. Recent results from BEST confirm the Gallium Anomaly, increasing its significance to , with sterile neutrinos providing a possible explanation of this anomaly. Separately, the MicroBooNE exclusion of electron-like signatures causing the MiniBooNE low-energy excess does not eliminate the possibility of sterile neutrinos as an explanation. Focusing specifically on the future use of reactors as a neutrino source for beyond-the-standard-model physics and applications, higher-precision spectral measurements still have a role to play. These recent results have created a confusing landscape which requires new data to disentangle the seemingly contradictory measurements. To directly probe disappearance from high sterile neutrinos, the PROSPECT collaboration proposes to build an upgraded and improved detector, PROSPECT-II. It features an evolutionary …

PROSPECT-II physics opportunities

Authors

M Andriamirado,AB Balantekin,HR Band,CD Bass,DE Bergeron,NS Bowden,CD Bryan,R Carr,T Classen,AJ Conant,G Deichert,A Delgado,MV Diwan,MJ Dolinski,A Erickson,BT Foust,JK Gaison,A Galindo-Uribari,CE Gilbert,C Grant,S Hans,AB Hansell,KM Heeger,B Heffron,DE Jaffe,S Jayakumar,X Ji,DC Jones,J Koblanski,P Kunkle,O Kyzylova,CE Lane,TJ Langford,J LaRosa,BR Littlejohn,X Lu,J Maricic,MP Mendenhall,AM Meyer,R Milincic,PE Mueller,HP Mumm,J Napolitano,R Neilson,JA Nikkel,S Nour,JL Palomino,DA Pushin,X Qian,R Rosero,M Searles,PT Surukuchi,MA Tyra,RL Varner,D Venegas-Vargas,PB Weatherly,C White,J Wilhelmi,A Woolverton,M Yeh,C Zhang,X Zhang,PROSPECT Collaboration

Journal

Journal of Physics G: Nuclear and Particle Physics

Published Date

2022/6/6

The precision reactor oscillation and spectrum experiment, PROSPECT, has made world-leading measurements of reactor antineutrinos at short baselines. In its first phase, conducted at the high flux isotope reactor (HFIR) at Oak Ridge National Laboratory, PROSPECT produced some of the strongest limits on eV-scale sterile neutrinos, made a precision measurement of the reactor antineutrino spectrum from 235 U, and demonstrated the observation of reactor antineutrinos in an aboveground detector with good energy resolution and well-controlled backgrounds. The PROSPECT collaboration is now preparing an upgraded detector, PROSPECT-II, to probe yet unexplored parameter space for sterile neutrinos and contribute to a full resolution of the reactor antineutrino anomaly, a longstanding puzzle in neutrino physics. By pressing forward on the world's most precise measurement of the 235 U antineutrino …

Joint Determination of Reactor Antineutrino Spectra from and Fission by Daya Bay and PROSPECT

Authors

FP An,M Andriamirado,AB Balantekin,HR Band,CD Bass,DE Bergeron,D Berish,M Bishai,S Blyth,NS Bowden,CD Bryan,GF Cao,J Cao,JF Chang,Y Chang,HS Chen,SM Chen,Y Chen,YX Chen,J Cheng,ZK Cheng,JJ Cherwinka,MC Chu,T Classen,AJ Conant,JP Cummings,O Dalager,G Deichert,A Delgado,FS Deng,YY Ding,MV Diwan,T Dohnal,MJ Dolinski,D Dolzhikov,J Dove,M Dvořák,DA Dwyer,A Erickson,BT Foust,JK Gaison,A Galindo-Uribarri,JP Gallo,CE Gilbert,M Gonchar,GH Gong,H Gong,M Grassi,WQ Gu,JY Guo,L Guo,XH Guo,YH Guo,Z Guo,RW Hackenburg,S Hans,AB Hansell,M He,KM Heeger,B Heffron,YK Heng,YK Hor,YB Hsiung,BZ Hu,JR Hu,T Hu,ZJ Hu,HX Huang,JH Huang,XT Huang,YB Huang,P Huber,J Koblanski,DE Jaffe,S Jayakumar,KL Jen,XL Ji,XP Ji,RA Johnson,DC Jones,L Kang,SH Kettell,S Kohn,M Kramer,O Kyzylova,CE Lane,TJ Langford,J LaRosa,J Lee,JHC Lee,RT Lei,R Leitner,JKC Leung,F Li,HL Li,JJ Li,QJ Li,RH Li,S Li,SC Li,WD Li,XN Li,XQ Li,YF Li,ZB Li,H Liang,CJ Lin,GL Lin,S Lin,JJ Ling,JM Link,L Littenberg,BR Littlejohn,JC Liu,JL Liu,JX Liu,C Lu,HQ Lu,X Lu,KB Luk,BZ Ma,XB Ma,XY Ma,YQ Ma,RC Mandujano,J Maricic,C Marshall,KT McDonald,RD McKeown,MP Mendenhall,Y Meng,AM Meyer,R Milincic,PE Mueller,HP Mumm,J Napolitano,D Naumov,E Naumova,R Neilson,TMT Nguyen,JA Nikkel,S Nour,JP Ochoa-Ricoux,A Olshevskiy,JL Palomino,H-R Pan,J Park,S Patton,JC Peng,CSJ Pun

Journal

Physical review letters

Published Date

2022/2/22

A joint determination of the reactor antineutrino spectra resulting from the fission of U 235 and Pu 239 has been carried out by the Daya Bay and PROSPECT Collaborations. This Letter reports the level of consistency of U 235 spectrum measurements from the two experiments and presents new results from a joint analysis of both data sets. The measurements are found to be consistent. The combined analysis reduces the degeneracy between the dominant U 235 and Pu 239 isotopes and improves the uncertainty of the U 235 spectral shape to about 3%. The U 235 and Pu 239 antineutrino energy spectra are unfolded from the jointly deconvolved reactor spectra using the Wiener-SVD unfolding method, providing a data-based reference for other reactor antineutrino experiments and other applications. This is the first measurement of the U 235 and Pu 239 spectra based on the combination of experiments at low-and …

Improved Measurement of the 235U Antineutrino Spectrum by PROSPECT

Authors

M Adriamirado,AB Balantekin,CD Bass,DE Bergeron,EP Bernard,NS Bowden,CD Bryan,R Carr,T Classen,AJ Conant,G Deichert,A Delgado,MV Diwan,MJ Dolinski,A Erickson,BT Foust,JK Gaison,A Galindo-Uribari,CE Gilbert,S Gokhale,C Grant,S Hans,AB Hansell,KM Heeger,B Heffron,DE Jaffe,S Jayakumar,X Ji,DC Jones,J Koblanski,P Kunkle,O Kyzylova,D LaBelle,CE Lane,TJ Langford,J LaRosa,BR Littlejohn,X Lu,J Maricic,MP Mendenhall,AM Meyer,R Milincic,PE Mueller,HP Mumm,J Napolitano,R Neilson,JA Nikkel,S Nour,JL Gallo,DA Pushin,X Qian,C Roca,R Rosero,M Searles,PT Surukuchi,F Sutanto,MA Tyra,D Venegas-Vargas,PB Weatherly,J Wilhelmi,A Woolverton,M Yeh,C Zhang,X Zhang

Journal

arXiv preprint arXiv:2212.10669

Published Date

2022/12/20

This Letter reports one of the most precise measurements to date of the antineutrino spectrum from a purely 235U-fueled reactor, made by PROSPECT at the High Flux Isotope Reactor. By extracting information from previously unused detector segments, this analysis effectively doubles the statistics of the previous PROSPECT measurement. The reconstructed energy spectrum is unfolded into antineutrino energy and compared with both the Huber-Mueller model and a spectrum from a commercial reactor burning multiple fuel isotopes. A local excess over the model is observed in the 5 MeV to 7 MeV energy region. Comparison of the PROSPECT results with those from commercial reactors provides new constraints on the origin of this excess, favoring the hypothesis that all fissioning isotopes at the commercial reactor contribute equally.

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