Detector signal characterization with a Bayesian network in XENONnT
Physical review D
Published On 2023/7/26
We developed a detector signal characterization model based on a Bayesian network trained on the waveform attributes generated by a dual-phase xenon time projection chamber. By performing inference on the model, we produced a quantitative metric of signal characterization and demonstrate that this metric can be used to determine whether a detector signal is sourced from a scintillation or an ionization process. We describe the method and its performance on electronic-recoil (ER) data taken during the first science run of the XENONnT dark matter experiment. We demonstrate the first use of a Bayesian network in a waveform-based analysis of detector signals. This method resulted in a 3% increase in ER event-selection efficiency with a simultaneously effective rejection of events outside of the region of interest. The findings of this analysis are consistent with the previous analysis from XENONnT, namely a …
Journal
Physical review D
Published On
2023/7/26
Volume
108
Issue
1
Page
012016
Authors
Xiao-Fei Li (李小飞)
University of Electronic Science and Technology of China
Position
H-Index(all)
309
H-Index(since 2020)
200
I-10 Index(all)
0
I-10 Index(since 2020)
0
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0
Citation(since 2020)
0
Cited By
0
Research Interests
Nanoelectronics
Spintronics
Nanophotonics
University Profile Page
Joaquim Marques Ferreira dos Santos
Universidade de Coimbra
Position
H-Index(all)
73
H-Index(since 2020)
48
I-10 Index(all)
0
I-10 Index(since 2020)
0
Citation(all)
0
Citation(since 2020)
0
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0
Research Interests
detetores de radiação
detetores gasosos
University Profile Page
Francesco Arneodo
New York University
Position
Professor of Physics, New York University Abu Dhabi
H-Index(all)
72
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43
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0
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0
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0
Citation(since 2020)
0
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0
Research Interests
astroparticle physics
detectors
University Profile Page
Uwe Oberlack
Johannes Gutenberg-Universität Mainz
Position
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62
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43
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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
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Dark matter
Gamma-ray astrophysics
University Profile Page
Jonas Müller
Rheinische Friedrich-Wilhelms-Universität Bonn
Position
HISKP
H-Index(all)
60
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47
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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
Baryon spectroscopy
University Profile Page
Marc Schumann
Albert-Ludwigs-Universität Freiburg
Position
Physikalisches Institut
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57
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42
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0
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0
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0
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0
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Astroparticle Physics
Dark Matter
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Kaixuan Ni
University of California, San Diego
Position
Department of Physics
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57
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39
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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
particle physics
nuclear physics
astrophysics
dark matter and neutrino detection
noble liquid detectors
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R. Budnik
Weizmann Institute of Science
Position
Faculty in physics
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49
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38
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0
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physics
astrophysics
dark matter
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Liang Yang
University of California, San Diego
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41
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35
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0
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0
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neutrinos
dark matter
fudamental symmetry
University Profile Page
Other Articles from authors
Joaquim Marques Ferreira dos Santos
Universidade de Coimbra
arXiv preprint arXiv:2403.14878
Offline tagging of radon-induced backgrounds in XENON1T and applicability to other liquid xenon detectors
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Rheinische Friedrich-Wilhelms-Universität Bonn
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2024/4/4
Article DetailsMarc Schumann
Albert-Ludwigs-Universität Freiburg
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Offline tagging of radon-induced backgrounds in XENON1T and applicability to other liquid xenon detectors
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2024/3/21
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New York University
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Design and performance of the field cage for the XENONnT experiment
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New York University
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Weizmann Institute of Science
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Columbia University in the City of New York
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Design and performance of the field cage for the XENONnT experiment
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2024/2/8
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University of California, San Diego
arXiv preprint arXiv:2403.14878
Offline tagging of radon-induced backgrounds in XENON1T and applicability to other liquid xenon detectors
This paper details the first application of a software tagging algorithm to reduce radon-induced backgrounds in liquid noble element time projection chambers, such as XENON1T and XENONnT. The convection velocity field in XENON1T was mapped out using and events, and the root-mean-square convection speed was measured to be cm/s. Given this velocity field, background events can be tagged when they are followed by and decays, or preceded by decays. This was achieved by propagating a point cloud as directed by the velocity field, and searching for and decays or decays within a volume defined by the point cloud. In XENON1T, this tagging system achieved a background reduction of with an exposure loss of . The tagging algorithm was also used to produce a population of tagged events with a large enhancement in the fraction. We show that the performance can be improved in XENONnT, and that the performance of such a software-tagging approach can be expected to be further improved in a diffusion-limited scenario. Finally, a similar method might be useful to tag the cosmogenic background, which is relevant to the search for neutrinoless double-beta decay.
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Rheinische Friedrich-Wilhelms-Universität Bonn
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Albert-Ludwigs-Universität Freiburg
The European Physical Journal C
Design and performance of the field cage for the XENONnT experiment
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2024/2/8
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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
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 DetailsClaudia Moreno
Universidad de Guadalajara
Physical Review D
Post-Newtonian gravitational waves with cosmological constant from the Einstein-Hilbert theory
We study the compact binary dynamics in the post-Newtonian approach implemented to the Einstein-Hilbert action adding the cosmological constant Λ at first post-Newtonian (1PN) order. We consider very small values of Λ finding that it plays the role of a PN factor to derive the Lagrangian of a compact two-body system at the center of mass frame at 1PN. Furthermore, the phase function ϕ (t) is obtained from the balance equation, and the two polarizations h+ and h× are also calculated. We observe changes due to Λ only at very low frequencies, and we notice that it plays the role of “stretch” the spacetime such that both amplitudes become smaller. However, given its nearly negligible value, Λ has no relevance at higher frequencies whatsoever.
2024/3/19
Article DetailsIan M. Shoemaker
University of South Dakota
Physical Review D
Long-lived particles and the quiet Sun
The nuclear reaction network within the interior of the Sun is an efficient MeV physics factory and can produce long-lived particles generic to dark sector models. In this work we consider the sensitivity of satellite instruments, primarily the RHESSI spectrometer, that observe the quiet Sun in the MeV regime where backgrounds are low. We find that quiet Sun observations offer a powerful and complementary probe in regions of parameter space, where the long-lived particle decay length is longer than the radius of the Sun and shorter than the distance between the Sun and Earth. We comment on connections to recent model-building work on heavy neutral leptons coupled to neutrinos and high-quality axions from mirror symmetries.
2024/1/22
Article DetailsHao Y. Zhang / 张昊
University of Pennsylvania
Physical Review D
Intermediate defect groups, polarization pairs, and noninvertible duality defects
Within the framework of relative and absolute quantum field theories (QFTs), we present a general formalism for understanding polarizations of the intermediate defect group and constructing noninvertible duality defects in theories in 2 k spacetime dimensions with self-dual gauge fields. We introduce the polarization pair, which fully specifies absolute QFTs as far as their (k− 1)-form defect groups are concerned, including their (k− 1)-form symmetries, global structures (including discrete θ-angle), and local counterterms. Using the associated symmetry topological field theory (TFT), we show that the polarization pair is capable of succinctly describing topological manipulations, eg, gauging (k− 1)-form global symmetries and stacking counterterms, of absolute QFTs. Furthermore, automorphisms of the (k− 1)-form charge lattice naturally act on polarization pairs via their action on the defect group; they can be viewed as …
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
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 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
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 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