Physical Review D最新文献

{"title":"Disentangling axionlike particle couplings to nucleons via a delayed signal in Super-Kamiokande from a future supernova","authors":"David Alonso-González, David Cerdeño, Marina Cermeño, Andres D. Perez","doi":"10.1103/physrevd.111.083029","DOIUrl":"https://doi.org/10.1103/physrevd.111.083029","url":null,"abstract":"In this work, we show that, if axionlike particles (ALPs) from core-collapse supernovae (SNe) couple to protons, they would produce very characteristic signatures in neutrino water Cherenkov detectors through their scattering off free protons via a</a:mi>p</a:mi>→</a:mo>p</a:mi>γ</a:mi></a:math> interactions. Specifically, sub-MeV ALPs would generate photons with energies <d:math xmlns:d=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><d:mo>∼</d:mo><d:mn>30</d:mn><d:mtext> </d:mtext><d:mtext> </d:mtext><d:mi>MeV</d:mi></d:math>, which could be observed by Super-Kamiokande and Hyper-Kamiokande as a delayed signal after a future detection of SN neutrinos. We apply this to a hypothetical neighboring SN (at a maximum distance of 100 kpc) and demonstrate that the region in the parameter space with ALP masses between <f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mrow><f:msup><f:mrow><f:mn>10</f:mn></f:mrow><f:mrow><f:mo>−</f:mo><f:mn>4</f:mn></f:mrow></f:msup><f:mtext> </f:mtext></f:mrow></f:math> and 1 MeV and ALP-proton couplings in the range <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><h:mrow><h:mn>3</h:mn><h:mo>×</h:mo><h:msup><h:mrow><h:mn>10</h:mn></h:mrow><h:mrow><h:mo>−</h:mo><h:mn>6</h:mn></h:mrow></h:msup><h:mi>–</h:mi><h:mn>4</h:mn><h:mo>×</h:mo><h:msup><h:mrow><h:mn>10</h:mn></h:mrow><h:mrow><h:mo>−</h:mo><h:mn>5</h:mn></h:mrow></h:msup></h:mrow></h:math> could be probed. We argue that this new signature, combined with the one expected at <j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><j:mo>∼</j:mo><j:mn>7</j:mn><j:mtext> </j:mtext><j:mtext> </j:mtext><j:mi>MeV</j:mi></j:math> from oxygen deexcitation, would allow us to disentangle ALP-neutron and ALP-proton couplings. <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":"9 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143849439","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":"Nucleon tensor form factors at large Nc","authors":"Nam-Yong Ghim, Ho-Yeon Won, June-Young Kim, Hyun-Chul Kim","doi":"10.1103/physrevd.111.074024","DOIUrl":"https://doi.org/10.1103/physrevd.111.074024","url":null,"abstract":"We investigate nucleon tensor form factors in the large-N</a:mi>c</a:mi></a:msub></a:math> limit. In this picture, the nucleon emerges as a state of the <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msub><c:mi>N</c:mi><c:mi>c</c:mi></c:msub></c:math> valence quarks, which were bound by pion mean fields that were created by the presence of the valence quarks self-consistently. We find that the tensor charge (<e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msubsup><e:mi>g</e:mi><e:mi>T</e:mi><e:mrow><e:mi>u</e:mi><e:mo>−</e:mo><e:mi>d</e:mi></e:mrow></e:msubsup><e:mo>=</e:mo><e:mn>0.99</e:mn></e:math>) and the anomalous tensor magnetic moment (<g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:msubsup><g:mi>κ</g:mi><g:mi>T</g:mi><g:mrow><g:mi>u</g:mi><g:mo>+</g:mo><g:mi>d</g:mi></g:mrow></g:msubsup><g:mo>=</g:mo><g:mn>7.61</g:mn></g:math>) are dominated by valence quarks, while the tensor quadrupole moment (<i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:msubsup><i:mi>Q</i:mi><i:mi>T</i:mi><i:mrow><i:mi>u</i:mi><i:mo>−</i:mo><i:mi>d</i:mi></i:mrow></i:msubsup><i:mo>=</i:mo><i:mo>−</i:mo><i:mn>7.02</i:mn></i:math>) shows significant sea quark effects. We examine how these quantities vary as the average size of the pion mean field is changed, showing interpolation between nonrelativistic quark and Skyrme limits. We also observe that <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:msubsup><k:mi>g</k:mi><k:mi>T</k:mi><k:mrow><k:mi>u</k:mi><k:mo>−</k:mo><k:mi>d</k:mi></k:mrow></k:msubsup></k:math> and <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:msubsup><m:mi>κ</m:mi><m:mi>T</m:mi><m:mrow><m:mi>u</m:mi><m:mo>+</m:mo><m:mi>d</m:mi></m:mrow></m:msubsup></m:math> depend weakly on the pion mass. In contrast, <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:msubsup><o:mi>Q</o:mi><o:mi>T</o:mi><o:mrow><o:mi>u</o:mi><o:mo>−</o:mo><o:mi>d</o:mi></o:mrow></o:msubsup></o:math> exhibits strong enhancement near the chiral limit. The numerical results are in good agreement with available lattice quantum chromodynamics (QCD) data and provide predictions for unmeasured quantities. <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":"26 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846648","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":"Localization mechanism of q -form field on the braneworld by coupling with gravity","authors":"Yong-Tao Lu, Heng Guo, Qun Wei, Chun-E Fu","doi":"10.1103/physrevd.111.085025","DOIUrl":"https://doi.org/10.1103/physrevd.111.085025","url":null,"abstract":"It is known that the scalar fields can be trapped on branes of different types, and the U</a:mi>(</a:mo>1</a:mn>)</a:mo></a:math> gauge vector fields can be localized on the thick de Sitter brane, or the thick Minkowski brane via coupling with gravity. The Kalb-Ramond fields can be localized on the Minkowski brane and the thick de-Sitter brane, with certain couplings. In this paper, with considering a coupling mechanism between the kinetic term of the <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mi>q</e:mi></e:math>-form fields and the background spacetime, we investigate the localization of Kaluza-Klein modes for the <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>q</g:mi></g:math>-form fields in <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mi>D</i:mi></i:math>-dimensional spacetime. Concrete <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>q</k:mi></k:math>-form fields are discussed within five-dimensional brane models with typical spacetime geometries: Minkowski, de Sitter, and anti–de Sitter. In the Minkowski brane case, the zero modes of various <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>q</m:mi></m:math>-form fields can be localized on the brane. In the de Sitter brane case, the zero mode of the <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:mi>U</o:mi><o:mo stretchy=\"false\">(</o:mo><o:mn>1</o:mn><o:mo stretchy=\"false\">)</o:mo></o:math> gauge vector fields can be localized on the brane. Lastly in the anti–de Sitter brane case, the zero mode of the Kalb-Ramond fields can be localized on the brane. For the massive Kaluza-Klein modes of these <s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><s:mi>q</s:mi></s:math>-form fields, they could be localized or quasi-localized on the brane of different types. Besides, subtle and detailed behaviors of the Kaluza-Klein modes for <u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><u:mi>q</u:mi></u:math>-form fields are observed: the zero modes could be localized on both sides of the brane, and the massive modes could be localized or quasilocalized at the brane position. <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":"7 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846602","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":"Improved post-Newtonian waveform model for inspiralling precessing-eccentric compact binaries","authors":"Gonzalo Morras, Geraint Pratten, Patricia Schmidt","doi":"10.1103/physrevd.111.084052","DOIUrl":"https://doi.org/10.1103/physrevd.111.084052","url":null,"abstract":"The measurement of spin precession and orbital eccentricity in gravitational-wave (GW) signals is a key priority in GW astronomy, as these effects not only provide unique insights into the astrophysical formation and evolution of compact binaries, but also, if neglected in waveform models, could introduce significant biases in parameter estimation, searches, and tests of general relativity. Despite the growing potential of upcoming LIGO-Virgo-KAGRA observing runs and future detectors to measure eccentric-precessing signals, accurately and efficiently modeling them remains a significant challenge. In this work, we present py, a frequency-domain post-Newtonian (PN) waveform model for the inspiral of precessing-eccentric compact binaries. py improves upon previous models by introducing analytical expressions for the Fourier mode amplitudes, enhancing the numerical stability of the multiple scale analysis framework, and adding recently derived PN corrections, critical to accurately describe signals in GW detectors. Additionally, we simplify the numerical implementation and introduce a scheme to interpolate the polarization amplitudes, achieving a speedup of up to ∼</a:mo>O</a:mi>(</a:mo>15</a:mn>)</a:mo></a:mrow></a:mrow></a:mrow></a:math> in the waveform computations, making the model practical for data analysis applications. We thoroughly validate py by comparing it to other waveform models in the quasicircular and eccentric-spin-aligned limits, finding good agreement. Additionally, we demonstrate py ’s capability to analyze simulated GW events, accurately recovering the parameters of signals described by both py and henom. While py still lacks important physical effects, such as higher-order PN corrections, higher-order modes, mode asymmetries, tidal interactions, or the merger-ringdown phase, it represents a significant step toward more complete waveform models, offering a flexible and efficient framework that can be extended in future work to incorporate these effects. <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":"70 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846561","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":"Field redefinitions in classical field theory with some quantum perspectives","authors":"Juan Carlos Criado, Joerg Jaeckel, Michael Spannowsky","doi":"10.1103/physrevd.111.076019","DOIUrl":"https://doi.org/10.1103/physrevd.111.076019","url":null,"abstract":"In quantum field theories, field redefinitions are often employed to remove redundant operators in the Lagrangian, making calculations simpler and physics more evident. This technique requires some care regarding, among other things, the choice of observables, the range of applicability, and the appearance and disappearance of solutions of the equations of motion (EOM). Many of these issues can already be studied at the classical level, which is the focus of this work. We highlight the importance of selecting appropriate observables and initial/boundary conditions to ensure the physical invariance of solutions. A classical analog to the Lehmann-Symanzik-Zimmermann (LSZ) formula is presented, confirming that some observables remain independent of field variables without tracking redefinitions. Additionally, we address, with an example, the limitations of noninvertible field redefinitions, particularly with nonperturbative objects like solitons, and discuss their implications for classical and quantum field theories. <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":"22 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846599","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":"Measurement of neutron whispering gallery states using a pulsed neutron beam","authors":"G. Ichikawa, K. Mishima","doi":"10.1103/physrevd.111.082008","DOIUrl":"https://doi.org/10.1103/physrevd.111.082008","url":null,"abstract":"A neutron whispering gallery state is a quantum state localized on a material surface bound by the centrifugal force and the material potential. Precise measurements of such quantum states enable tests of quantum mechanics in noninertial frames, characterization of the surface potential, and searches for hypothetical short-range interactions at the nanometer scale. We observed a neutron whispering gallery state on a SiO</a:mi>2</a:mn></a:msub></a:math> concave mirror using a pulsed cold neutron beam. The measured results agree with theoretical calculations within 1.9% for the centrifugal acceleration <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mrow><c:mi>a</c:mi><c:mo>≈</c:mo><c:mn>7</c:mn><c:mo>×</c:mo><c:msup><c:mrow><c:mn>10</c:mn></c:mrow><c:mrow><c:mn>7</c:mn></c:mrow></c:msup><c:mtext> </c:mtext><c:mtext> </c:mtext><c:mi mathvariant=\"normal\">m</c:mi><c:mo>/</c:mo><c:msup><c:mrow><c:mi mathvariant=\"normal\">s</c:mi></c:mrow><c:mrow><c:mn>2</c:mn></c:mrow></c:msup></c:mrow></c:math>, which is due to unmodeled deviations of the shape of the concave mirror edge from an ideal one. We found that the sensitivity itself was <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mn>1</g:mn><g:mo>×</g:mo><g:msup><g:mn>10</g:mn><g:mrow><g:mo>−</g:mo><g:mn>4</g:mn></g:mrow></g:msup></g:math>, which is two orders of magnitude better than the above agreement. <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":"34 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846600","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":"Supernova remnants with mirror dark matter and hyperons","authors":"Adamu Issifu, Prashant Thakur, Franciele M. da Silva, Kau D. Marquez, Débora P. Menezes, M. Dutra, O. Lourenço, Tobias Frederico","doi":"10.1103/physrevd.111.083026","DOIUrl":"https://doi.org/10.1103/physrevd.111.083026","url":null,"abstract":"For the first time, we use relativistic mean-field approximation with density-dependent couplings, adjusted by the Density-Dependent Meson-Exchange 2 (DDME2) parameterization, to investigate the effects of dark matter on supernova remnants. We calculate the nuclear equation of state for nuclear and dark matter separately, under the thermodynamic conditions related to the evolution of supernova remnants. A mirrored model is adopted for dark matter, and its effect on remnant matter is studied using a two-fluid scenario. At each stage of the remnant evolution, we assume that dark and ordinary matter have the same entropy and lepton fraction, and a fixed proportion of dark matter mass fraction is added to the stellar matter to observe its effects on some microscopic and macroscopic properties of the star. We observe that dark matter in the remnant core reduces the remnant’s maximum mass, radius, and tidal deformability. Moreover, dark matter heats the remnant matter and alters particle distributions, thereby decreasing its isospin asymmetry and increasing the sound speed through the matter. <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":"40 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846601","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":"Cosmological limits on the neutrino mass sum for beyond- ΛCDM models","authors":"Helen Shao, Jahmour J. Givans, Jo Dunkley, Mathew Madhavacheril, Frank J. Qu, Gerrit Farren, Blake Sherwin","doi":"10.1103/physrevd.111.083535","DOIUrl":"https://doi.org/10.1103/physrevd.111.083535","url":null,"abstract":"The sum of neutrino masses can be measured cosmologically, as the sub-eV particles behave as “hot” dark matter whose main effect is to suppress the clustering of matter compared to a universe with the same amount of purely cold dark matter. Current astronomical data provide an upper limit on ∑</a:mo>m</a:mi></a:mrow>ν</a:mi></a:mrow></a:msub></a:mrow></a:math> between 0.07–0.12 eV at 95% confidence, depending on the choice of data. This bound assumes that the cosmological model is <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mrow><c:mi mathvariant=\"normal\">Λ</c:mi></c:mrow></c:math> Cold Dark Matter (<f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mi mathvariant=\"normal\">Λ</f:mi><f:mi>CDM</f:mi></f:math>), where dark energy is a cosmological constant, the spatial geometry is flat, and the primordial fluctuations follow a pure power law. Here, we update studies on how the mass limit degrades if we relax these assumptions. To existing data from the satellite we add new gravitational lensing data from the Atacama Cosmology Telescope, the new Type Ia supernova sample from the <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mrow><i:mi>Pantheon</i:mi><i:mo>+</i:mo><i:mtext>survey</i:mtext></i:mrow></i:math>, and baryonic acoustic oscillation (BAO) measurements from the Sloan Digital Sky Survey and the Dark Energy Spectroscopic Instrument. Using our fiducial data combination, described in the appendix, we find the neutrino mass limit is stable to most model extensions, with such extensions degrading the limit by less than 10%. We find a broadest bound of <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mrow><k:mo>∑</k:mo><k:msub><k:mrow><k:mi>m</k:mi></k:mrow><k:mrow><k:mi>ν</k:mi></k:mrow></k:msub><k:mo>&lt;</k:mo><k:mn>0.19</k:mn><k:mtext> </k:mtext><k:mtext> </k:mtext><k:mi>eV</k:mi></k:mrow></k:math> at 95% confidence for a model with dynamical dark energy, although this scenario is not statistically preferred over the simpler <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi mathvariant=\"normal\">Λ</m:mi><m:mi>CDM</m:mi></m:math> model. <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":"9 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846610","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":"Can plasma physics establish a significant bound on long-range dark matter interactions?","authors":"K. Schoeffler, N. Shukla, L. O. Silva","doi":"10.1103/physrevd.111.l071701","DOIUrl":"https://doi.org/10.1103/physrevd.111.l071701","url":null,"abstract":"Dark matter has been theorized to be charged under its own “dark electromagnetism” (dark-EM). Under this hypothesis, dark matter can behave like a cold collisionless plasma of self-interacting dark matter particles and exhibit plasmalike instabilities with observational consequences. Using the results published in [], which studied the degree of slowdown between two interpenetrating e</a:mi>−</a:mo></a:msup>e</a:mi>+</a:mo></a:msup></a:math> plasma clouds due to plasma instabilities, estimates of similar interactions for colliding “dark plasmas” are explored. Comparison with astronomical observations reveals strong new constraints on dark-EM with the dark electromagnetic self-interaction <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msub><c:mi>α</c:mi><c:mi>D</c:mi></c:msub><c:mo>&lt;</c:mo><c:mn>4</c:mn><c:mo>×</c:mo><c:msup><c:mn>10</c:mn><c:mrow><c:mo>−</c:mo><c:mn>25</c:mn></c:mrow></c:msup></c:math>. <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":"164 3 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846604","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":"Study of rare top quark decays into a jet plus a charged pseudoscalar meson","authors":"Long-Shun Lu, Lei-Yi Li, Cai-Dian Lü","doi":"10.1103/physrevd.111.076016","DOIUrl":"https://doi.org/10.1103/physrevd.111.076016","url":null,"abstract":"The semi-inclusive decay processes of a top quark into a charged pseudoscalar meson and a jet are studied within the framework of QCD factorization. The leading power of the decay matrix elements can be factorized into heavy-to-light quark transition current and a hadron matrix element up to next-to-leading-order QCD corrections. We calculate one-loop virtual corrections together with real gluon emission corrections at the α</a:mi></a:mrow>s</a:mi></a:mrow></a:msub></a:mrow></a:math> order. The numerical results of the branching ratios are presented for the sum of two- and three-body decays. We also study the energy cutoff dependence of the gluon jet. These processes are hopeful to be detected in near future experiments, which can serve as probes for new physics. <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":"75 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846608","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}