GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run
Physical Review D
Published On 2024/1/5
The second Gravitational-Wave Transient Catalog, GWTC-2, reported on 39 compact binary coalescences observed by the Advanced LIGO and Advanced Virgo detectors between 1 April 2019 15∶ 00 UTC and 1 October 2019 15∶ 00 UTC. Here, we present GWTC-2.1, which reports on a deeper list of candidate events observed over the same period. We analyze the final version of the strain data over this period with improved calibration and better subtraction of excess noise, which has been publicly released. We employ three matched-filter search pipelines for candidate identification, and estimate the probability of astrophysical origin for each candidate event. While GWTC-2 used a false alarm rate threshold of 2 per year, we include in GWTC-2.1, 1201 candidates that pass a false alarm rate threshold of 2 per day. We calculate the source properties of a subset of 44 high-significance candidates that have a …
Journal
Physical Review D
Published On
2024/1/5
Volume
109
Issue
2
Page
022001
Authors
Xiaofeng Wang
Tsinghua University
Position
Physics Department
H-Index(all)
283
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185
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0
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0
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0
Citation(since 2020)
0
Cited By
0
Research Interests
supernova
time-domain astronomy
AGN
University Profile Page
Giacomo Bruno
Université Catholique de Louvain
Position
professor of physics (UCL) Louvain-la-Neuve Belgium
H-Index(all)
240
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165
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0
I-10 Index(since 2020)
0
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0
Citation(since 2020)
0
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0
Research Interests
particle physics
fundamental interactions
particle detectors
statistical data analysis
high-performance computing
University Profile Page
Jongki Kim
Yonsei University
Position
Physics
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238
H-Index(since 2020)
138
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0
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0
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0
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0
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0
Research Interests
Optics
Photonics
Fiber optics
Laser beam shaping
Laser applications
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Thomas Koffas
Carleton University
Position
Professor of Physics
H-Index(all)
234
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165
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0
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0
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0
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0
Research Interests
Physics
Experimental High Energy Physics
Neutrinos
Higgs
Detector Development
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Jun-Ming LIU
Nanjing University
Position
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226
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161
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0
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0
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0
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0
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0
Research Interests
condensed matter physics
materials science
University Profile Page
Hyun Geun Lee
Korea University
Position
Ph.D. of Mathematics
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224
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145
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0
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0
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Computational Fluid Dynamics
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Nick van Remortel
Universiteit Antwerpen
Position
Professor of Physics
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190
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126
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0
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0
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0
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0
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0
Research Interests
Physics of particles and fields
general relativity
University Profile Page
Raymond Frey
University of Oregon
Position
Department of Physics
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182
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98
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0
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0
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0
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astrophysics
high-energy physics
University Profile Page
Xuhui Chen
Universität Potsdam
Position
DESY
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175
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135
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Astrophysics
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Physical Review D
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2024/1/17
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Physical Review D
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Physical Review D
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2024/3/14
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Physical Review D
Constraints for the X17 boson from compact objects observations
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2024/2/15
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Physical Review D
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Physical Review D
GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run
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2024/1/5
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Physical Review D
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Physical Review D
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2024/1/22
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University of Pennsylvania
Physical Review D
Intermediate defect groups, polarization pairs, and noninvertible duality defects
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2024/1/10
Article DetailsIgor Altsybeev
St. Petersburg State University
Physical Review D
Measurement of the fraction of jet longitudinal momentum carried by baryons in collisions
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2024/4/5
Article DetailsFabrizio BARONE
Università degli Studi di Salerno
Physical Review D
GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run
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2024/1/5
Article DetailsJohn Veitch
University of Glasgow
Physical Review D
GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run
The second Gravitational-Wave Transient Catalog, GWTC-2, reported on 39 compact binary coalescences observed by the Advanced LIGO and Advanced Virgo detectors between 1 April 2019 15∶ 00 UTC and 1 October 2019 15∶ 00 UTC. Here, we present GWTC-2.1, which reports on a deeper list of candidate events observed over the same period. We analyze the final version of the strain data over this period with improved calibration and better subtraction of excess noise, which has been publicly released. We employ three matched-filter search pipelines for candidate identification, and estimate the probability of astrophysical origin for each candidate event. While GWTC-2 used a false alarm rate threshold of 2 per year, we include in GWTC-2.1, 1201 candidates that pass a false alarm rate threshold of 2 per day. We calculate the source properties of a subset of 44 high-significance candidates that have a …
2024/1/5
Article DetailsElham E Khoda
University of Washington
Physical Review D
Search for quantum black hole production in lepton+ jet final states using proton-proton collisions at s= 13 TeV with the ATLAS detector
A search for quantum black holes in electron+ jet and muon+ jet invariant mass spectra is performed with 140 fb− 1 of data collected by the ATLAS detector in proton-proton collisions at s= 13 TeV at the Large Hadron Collider. The observed invariant mass spectrum of lepton+ jet pairs is consistent with Standard Model expectations. Upper limits are set at 95% confidence level on the production cross section times branching fractions for quantum black holes decaying into a lepton and a quark in a search region with invariant mass above 2.0 TeV. The resulting quantum black hole lower mass threshold limit is 9.2 TeV in the Arkani-Hamed-Dimopoulos-Dvali model, and 6.8 TeV in the Randall-Sundrum model.
2024/2/27
Article DetailsDavid Silvermyr
Lunds Universitet
Physical Review D
Measurement of the fraction of jet longitudinal momentum carried by baryons in collisions
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 …
2024/4/5
Article DetailsGiuseppe Callea
University of Glasgow
Physical Review D
Search for quantum black hole production in lepton+ jet final states using proton-proton collisions at s= 13 TeV with the ATLAS detector
A search for quantum black holes in electron+ jet and muon+ jet invariant mass spectra is performed with 140 fb− 1 of data collected by the ATLAS detector in proton-proton collisions at s= 13 TeV at the Large Hadron Collider. The observed invariant mass spectrum of lepton+ jet pairs is consistent with Standard Model expectations. Upper limits are set at 95% confidence level on the production cross section times branching fractions for quantum black holes decaying into a lepton and a quark in a search region with invariant mass above 2.0 TeV. The resulting quantum black hole lower mass threshold limit is 9.2 TeV in the Arkani-Hamed-Dimopoulos-Dvali model, and 6.8 TeV in the Randall-Sundrum model.
2024/2/27
Article DetailsMinsu Park
University of Pennsylvania
Physical Review D
Atacama Cosmology Telescope: The persistence of neutrino self-interaction in cosmological measurements
We use data from the Atacama Cosmology Telescope (ACT) DR4 to search for the presence of neutrino self-interaction in the cosmic microwave background. Consistent with prior works, the posterior distributions we find are bimodal, with one mode consistent with Λ CDM and one where neutrinos strongly self-interact. By combining ACT data with large-scale information from WMAP, we find that a delayed onset of neutrino free streaming caused by significantly strong neutrino self-interaction is compatible with these data at the 2− 3 σ level. As seen in the past, the preference shifts to Λ CDM with the inclusion of Planck data. We determine that the preference for strong neutrino self-interaction is largely driven by angular scales corresponding to 700≲ ℓ≲ 1000 in the ACT E-mode polarization data. This region is expected to be key to discriminate between neutrino self-interacting modes and will soon be probed with …
2024/2/1
Article DetailsHerodotos Herodotou
Cyprus University of Technology
Physical Review D
Supersymmetric QCD on the lattice: Fine-tuning of the Yukawa couplings
We determine the fine-tuning of the Yukawa couplings of supersymmetric QCD, discretized on a lattice. We use perturbation theory at one-loop level. The modified minimal subtraction scheme (MS) is employed; by its definition, this scheme requires perturbative calculations, in the continuum and/or on the lattice. On the lattice, we utilize the Wilson formulation for gluon, quark, and gluino fields; for squark fields we use naive discretization. The sheer difficulties of this study lie in the fact that different components of squark fields mix among themselves at the quantum level and the action’s symmetries, such as parity and charge conjugation, allow an additional Yukawa coupling. Consequently, for an appropriate fine-tuning of the Yukawa terms, these mixings must be taken into account in the renormalization conditions. All Green’s functions and renormalization factors are analytic expressions depending on the number of …
2024/2/20
Article Details