Physical Review D最新文献

{"title":"Rapid methods for modeling overdensities of massive neutrinos and other noncold relics","authors":"Keduse Worku, Nashwan Sabti, Marc Kamionkowski","doi":"10.1103/physrevd.112.023538","DOIUrl":"https://doi.org/10.1103/physrevd.112.023538","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"12 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144669892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Particle spectrum for any tensor Lagrangian","authors":"W. Barker, C. Marzo, C. Rigouzzo","doi":"10.1103/physrevd.112.016018","DOIUrl":"https://doi.org/10.1103/physrevd.112.016018","url":null,"abstract":"We present the er software for efficiently computing the mass and energy of the particle spectrum for any (e.g., higher-rank) tensor field theory in the olfram anguage. The user must provide a Lagrangian density which is expanded quadratically in the fields around a Minkowski vacuum, is linear in the coupling coefficients, and otherwise built from the partial derivative and Minkowski metric. er automatically computes the spin-projection operators, saturated propagator, bare masses, residues of massive and massless poles, and overall unitarity conditions in terms of the coupling coefficients. The constraints on the source currents and total number of gauge symmetries are produced as a by-product. We provide examples from scalar, vector, tensor, and gauge theories of gravity. Each example, including spectra of higher-spin modified gravity theories, may be obtained on a personal computer in a matter of minutes. The software is also parallelized for use on high-performance computing resources. The initial release allows for parity-preserving operators constructed from fields of up to rank three: this functionality will be extended in future versions. er is a contribution to the xct project.","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"53 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144677856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the significance of the ILL experiment on the sterile neutrino hypothesis","authors":"Noah Austin, Snehadri Das, Matthew Velardi, David J. Ernst","doi":"10.1103/physrevd.112.012010","DOIUrl":"https://doi.org/10.1103/physrevd.112.012010","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"56 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dust stars in the minimal exponential measure model","authors":"Reyhan D. Lambaga, Justin C. Feng, Norman Hsia, Pisin Chen","doi":"10.1103/qbsn-bt3y","DOIUrl":"https://doi.org/10.1103/qbsn-bt3y","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"15 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144640062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gravitational memory and Ward identities in the local detector frame","authors":"Valerio De Luca, Justin Khoury, Sam S. C. Wong","doi":"10.1103/physrevd.112.024032","DOIUrl":"https://doi.org/10.1103/physrevd.112.024032","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"7 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144629532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical simulation tool based on impedance matrices","authors":"Paolo Ruggi, Manuel Pinto, Lucia Trozzo, Giancarlo Cella, Ettore Majorana, Giovanni Losurdo, Piero Chessa, Alessandro Longo, Andrea Viceré","doi":"10.1103/physrevd.112.022002","DOIUrl":"https://doi.org/10.1103/physrevd.112.022002","url":null,"abstract":"ctopus is a simulation software specifically developed to calculate the response of a given mechanical system. The initial purpose of its development was to support the design and the commissioning of the superattenuator (SA), i.e., the vibration isolator designed to inhibit the transmission of the seismic noise at the level of the test mass of the Virgo gravitational waves detector. ctopus analytically computes the transfer functions of a complex mechanical system using the impedance matrix formalism in the frequency domain and provides an advanced and versatile mechanical simulation tool. This methodology allows to analyze a large set of user-defined mechanical layouts. Within the context of advanced seismic isolation system design, the present software allows to accurately estimate the behavior of specific mechanical components in terms of performance and general requirements achievement, both in open loop and also when feedback control loops are implemented. In the present work, several topics will be addressed. First, the mathematical principles behind the impedance formalism will be introduced, focusing on the modeling of basic elements, which constitute the principal blocks used to develop and build complex mechanical models. Then, as case studies, two examples of mechanical systems models will be presented: the computation of the thermal noise of a body suspended by an elastic beam and the complete model of a superattenuator. To validate the accuracy of the simulation tool, comparisons with experimental measurements will be given in both cases. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"189 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144577800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scattered light reduction in Sagnac speed meters with tunable coherence","authors":"Leonie Eggers, Daniel Voigt, Oliver Gerberding","doi":"10.1103/physrevd.112.022001","DOIUrl":"https://doi.org/10.1103/physrevd.112.022001","url":null,"abstract":"Sagnac speed meter and ring resonators can be used as high-precision instruments, but they are limited in their sensitivity through scattered light causing nonlinear noise. Here, we experimentally demonstrate a technique called tunable coherence, where the long coherence length of the laser is broken in a controlled way, to suppress the coupling of scattered light in a Sagnac interferometer. We demonstrate a scattered light suppression of 24.2 dB in a Sagnac interferometer and discuss the experimental limitations. Further, we show an analytical discussion on how tunable coherence could be a fundamental solution to light scattering back from optical surfaces into the counterpropagating beam, which is an issue particularly in ring resonators. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"8 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144577844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing generalization in high-energy physics using white-box adversarial attacks","authors":"Franck Rothen, Samuel Klein, Matthew Leigh, Tobias Golling","doi":"10.1103/physrevd.112.016004","DOIUrl":"https://doi.org/10.1103/physrevd.112.016004","url":null,"abstract":"Machine learning is becoming increasingly popular in the context of particle physics. Supervised learning, which uses labeled Monte Carlo (MC) simulations, remains one of the most widely used methods for discriminating signals beyond the Standard Model. However, this paper suggests that supervised models may depend excessively on artifacts and approximations from Monte Carlo simulations, potentially limiting their ability to generalize well to real data. This study aims to enhance the generalization properties of supervised models by reducing the sharpness of local minima. It reviews the application of four distinct white-box adversarial attacks in the context of classifying Higgs boson decay signals. The attacks are divided into weight-space attacks and feature-space attacks. To study and quantify the sharpness of different local minima, this paper presents two analysis methods: gradient ascent and reduced Hessian eigenvalue analysis. The results show that white-box adversarial attacks significantly improve generalization performance, albeit with increased computational complexity. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"151 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144577845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reinvestigating the semileptonic B→D(*)τν¯τ decays in the model independent scenarios and leptoquark models","authors":"Zhuo-Ran Huang, Faisal Munir Bhutta, Nimra Farooq, M. Ali Paracha, Ying Li","doi":"10.1103/physrevd.111.115035","DOIUrl":"https://doi.org/10.1103/physrevd.111.115035","url":null,"abstract":"In this work, we revisit the possible new physics solutions by analyzing the observables associated with B</a:mi>→</a:mo>D</a:mi></a:mrow>(</a:mo>*</a:mo>)</a:mo></a:mrow></a:msup>τ</a:mi>ν</a:mi></a:mrow>¯</a:mo></a:mrow></a:mover></a:mrow>τ</a:mi></a:mrow></a:msub></a:mrow></a:math> decays. To explore the structure of new physics, the form factors of <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><h:mi>B</h:mi><h:mo stretchy=\"false\">→</h:mo><h:msup><h:mi>D</h:mi><h:mrow><h:mo stretchy=\"false\">(</h:mo><h:mo>*</h:mo><h:mo stretchy=\"false\">)</h:mo></h:mrow></h:msup></h:math> decays play a crucial role. In this study, we utilize the form factor results obtained from a simultaneous fit to Belle data and lattice QCD calculations. Using these form factors, we conduct a global fit of the new physics Wilson coefficients, incorporating the most recent experimental data. Additionally, we use the form factors and Wilson coefficients to make predictions for physical observables, including the lepton flavor universality ratio <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:msub><m:mi>R</m:mi><m:msup><m:mi>D</m:mi><m:mrow><m:mo stretchy=\"false\">(</m:mo><m:mo>*</m:mo><m:mo stretchy=\"false\">)</m:mo></m:mrow></m:msup></m:msub></m:math>, polarized observables, and the normalized angular coefficients <q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><q:mo stretchy=\"false\">⟨</q:mo><q:mi>I</q:mi><q:mo stretchy=\"false\">⟩</q:mo></q:math>’s related to the fourfold decays <u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><u:mi>B</u:mi><u:mo stretchy=\"false\">→</u:mo><u:msup><u:mi>D</u:mi><u:mo>*</u:mo></u:msup><u:mo stretchy=\"false\">(</u:mo><u:mo stretchy=\"false\">→</u:mo><u:mi>D</u:mi><u:mi>π</u:mi><u:mo>,</u:mo><u:mi>D</u:mi><u:mi>γ</u:mi><u:mo stretchy=\"false\">)</u:mo><u:mi>τ</u:mi><u:msub><u:mover accent=\"true\"><u:mi>ν</u:mi><u:mo stretchy=\"false\">¯</u:mo></u:mover><u:mi>τ</u:mi></u:msub></u:math>. These predictions are calculated in both model independent scenarios and for three different leptoquark models. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"270 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144500401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dark timbre of gravitational waves","authors":"Juan Urrutia, Ville Vaskonen","doi":"10.1103/physrevd.111.123047","DOIUrl":"https://doi.org/10.1103/physrevd.111.123047","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"1 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144503394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}