Physics Letters B最新文献

{"title":"Corrigendum to “Quark mass dependence of the low-lying charmed mesons at one loop in HHχPT” [Physics Letters B Volume 843, 10 August 2023, 137997]","authors":"F. Gil-Domínguez, R. Molina","doi":"10.1016/j.physletb.2025.139619","DOIUrl":"10.1016/j.physletb.2025.139619","url":null,"abstract":"","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139619"},"PeriodicalIF":4.3,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144291680","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":"Quantum detection of boundary conditions","authors":"Jefferson Monção da Silva,&nbsp;João Paulo M. Pitelli","doi":"10.1016/j.physletb.2025.139635","DOIUrl":"10.1016/j.physletb.2025.139635","url":null,"abstract":"<div><div>The quantum detection of spacetime conicity was investigated in reference Cong et al. (2021) <span><span>[9]</span></span> through the analysis of the response function of an Unruh-deWitt detector coupled to a massless scalar field. In particular, it was shown that the detector can discern the presence of the deficit angle of a region of spacetime even when it is placed on a flat region with no conical deficit and (due to the rapid switching on and off) is classically isolated from the conical region. The scalar field was supposed to be continuous at the three dimensional timelike hypersurface connecting both regions and it was argued that the non-trivial effects on the response function were only due to the deficit angle of the outer conical region. In this paper, we study the response function of the Unruh-deWitt detector on the same classical framework, but exploring the effects of the choice of boundary conditions for the scalar field at the connecting hypersurface. These boundary conditions are extracted from the two-interval Sturm-Liouville theory and each one gives rise to a physically inequivalent sensible dynamics for the quantum field. We show that they play an important role on the response function of the detector, which effectively “feels” the combined effect of conicity + boundary condition.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139635"},"PeriodicalIF":4.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271711","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":"Boosted top quark inspired leptoquark searches at the muon collider","authors":"Arvind Bhaskar ,&nbsp;Manimala Mitra","doi":"10.1016/j.physletb.2025.139656","DOIUrl":"10.1016/j.physletb.2025.139656","url":null,"abstract":"<div><div>The proposed muon collider presents a promising avenue to explore various classes of beyond the standard model (BSM) particles. In this paper, we investigate the discovery prospects of the scalar leptoquark (sLQ) <span><math><msub><mrow><mi>S</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span> at a muon collider. We consider two benchmark center-of-mass (C.O.M.) energy scenarios: 5 TeV and 10 TeV. We assume that the LQ decays into a top quark and a muon. The collider analysis for an LQ decaying into a top quark is distinct from that of lighter quarks. A TeV-scale sLQ decaying into a top quark can produce an exotic, boosted fat-jet signature. In addition to the usual searches based on pair production of sLQs, we also examine the single production mode, which depends on the <span><math><msub><mrow><mi>S</mi></mrow><mrow><mn>1</mn></mrow></msub><mi>t</mi><mi>μ</mi></math></span> coupling. We demonstrate that systematically combining the pair and single production modes significantly enhances the discovery potential of the sLQ at the muon collider. Our signal topology includes at least one hadronically decaying top fat-jet and two oppositely charged muons, thereby enabling the incorporation of the single production mode. We show that even with single production alone, it is possible to probe sLQs as heavy as 4.5 TeV (9.0 TeV) in the 5 TeV (10 TeV) C.O.M. scenario for <span><math><mi>O</mi><mo>(</mo><mn>1</mn><mo>)</mo></math></span> couplings.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139656"},"PeriodicalIF":4.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271587","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":"S-dual quintessence, the Swampland, and the DESI DR2 results","authors":"Luis A. Anchordoqui ,&nbsp;Ignatios Antoniadis ,&nbsp;Dieter Lüst","doi":"10.1016/j.physletb.2025.139632","DOIUrl":"10.1016/j.physletb.2025.139632","url":null,"abstract":"<div><div>We propose a dark energy model in which a quintessence field <em>ϕ</em> rolls near the vicinity of a local maximum of its potential characterized by the simplest <em>S</em> self-dual form <span><math><mi>V</mi><mo>(</mo><mi>ϕ</mi><mo>)</mo><mo>=</mo><mi>Λ</mi><mspace></mspace><mrow><mi>sech</mi></mrow><mo>(</mo><msqrt><mrow><mn>2</mn></mrow></msqrt><mspace></mspace><mi>ϕ</mi><mo>/</mo><msub><mrow><mi>M</mi></mrow><mrow><mi>p</mi></mrow></msub><mo>)</mo></math></span>, where <span><math><msub><mrow><mi>M</mi></mrow><mrow><mi>p</mi></mrow></msub></math></span> is the reduced Planck mass and <span><math><mi>Λ</mi><mo>∼</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>−</mo><mn>120</mn></mrow></msup><msubsup><mrow><mi>M</mi></mrow><mrow><mi>p</mi></mrow><mrow><mn>4</mn></mrow></msubsup></math></span> is the cosmological constant. We confront the model with Swampland ideas and show that the <em>S</em>-dual potential is consistent with the distance conjecture, the de Sitter conjecture, and the trans-Planckian censorship conjecture. We also examine the compatibility of this phenomenological model with the intriguing DESI DR2 results and show that the shape of the <em>S</em>-dual potential is almost indistinguishable from the axion-like potential, <span><math><mi>V</mi><mo>(</mo><mi>ϕ</mi><mo>)</mo><mo>=</mo><msubsup><mrow><mi>m</mi></mrow><mrow><mi>a</mi></mrow><mrow><mn>2</mn></mrow></msubsup><mspace></mspace><msubsup><mrow><mi>f</mi></mrow><mrow><mi>a</mi></mrow><mrow><mn>2</mn></mrow></msubsup><mspace></mspace><mo>[</mo><mn>1</mn><mo>+</mo><mi>cos</mi><mo>⁡</mo><mo>(</mo><mi>ϕ</mi><mo>/</mo><msub><mrow><mi>f</mi></mrow><mrow><mi>a</mi></mrow></msub><mo>)</mo><mo>]</mo></math></span>, with <span><math><msub><mrow><mi>m</mi></mrow><mrow><mi>a</mi></mrow></msub></math></span> and <span><math><msub><mrow><mi>f</mi></mrow><mrow><mi>a</mi></mrow></msub></math></span> parameters fitted by the DESI Collaboration to accommodate the DR2 data. The self-dual potential has the advantage that one starts at the self-dual point and this is a theoretical motivation, because as the universe cools off the <span><math><msub><mrow><mi>Z</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> symmetry gets broken leading to a natural rolling away from the symmetric point.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139632"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271583","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":"Compton scattering X-ray imaging system for material detection through 3 mm aluminum shielding for potential future space application","authors":"Yun Li ,&nbsp;Tong Su ,&nbsp;Lizhi Sheng ,&nbsp;Ruili Zhang ,&nbsp;Pengfei Qiang ,&nbsp;Rengzhou Zheng ,&nbsp;Bo Wang ,&nbsp;Yongqing Yan ,&nbsp;Yue Li ,&nbsp;Yalong Zhang","doi":"10.1016/j.physletb.2025.139650","DOIUrl":"10.1016/j.physletb.2025.139650","url":null,"abstract":"<div><div>This paper explores the application of Compton scattering imaging for the active detection of space debris at long distances and through dense metallic shielding. Unlike conventional short-range applications in security screening, space-based scenarios present unique challenges such as severe geometric attenuation, low signal-to-noise ratios, and multi-layer scattering interference. To address these issues, we developed a high-precision, single-sided X-ray scattering imaging system capable of long-range detection. By integrating optimized scattering models, advanced noise suppression algorithms, and a carefully designed experimental setup, the system successfully imaged targets behind 3-mm aluminum shielding at a testing distance of 1.76 meters—equivalent to 10 km in a space environment—with a spatial resolution of 0.63 cm. The results validate the feasibility of Compton scattering imaging for active space debris monitoring and mark significant progress in long-range imaging under complex electromagnetic conditions.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139650"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271585","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":"Determination of the strong coupling and its running from measurements of inclusive jet production","authors":"","doi":"10.1016/j.physletb.2025.139651","DOIUrl":"10.1016/j.physletb.2025.139651","url":null,"abstract":"<div><div>The value of the strong coupling <span><math><msub><mrow><mi>α</mi></mrow><mrow><mi>S</mi></mrow></msub></math></span> is determined in a comprehensive analysis at next-to-next-to-leading order accuracy in quantum chromodynamics. The analysis uses double-differential cross section measurements from the CMS Collaboration at the CERN LHC of inclusive jet production in proton-proton collisions at centre-of-mass energies of 2.76, 7, 8, and 13 TeV, combined with inclusive deep-inelastic data from HERA. The value <span><math><msub><mrow><mi>α</mi></mrow><mrow><mi>S</mi></mrow></msub><mo>(</mo><msub><mrow><mi>m</mi></mrow><mrow><mi>Z</mi></mrow></msub><mo>)</mo><mo>=</mo><mn>0.1176</mn><mspace></mspace><msubsup><mrow></mrow><mrow><mo>−</mo><mn>0.0016</mn></mrow><mrow><mo>+</mo><mn>0.0014</mn></mrow></msubsup></math></span> is obtained at the scale of the Z boson mass. By using the measurements in different intervals of jet transverse momentum, the running of <span><math><msub><mrow><mi>α</mi></mrow><mrow><mi>S</mi></mrow></msub></math></span> is probed for energies between 100 and 1600 GeV.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139651"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271584","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":"Resumming fermion loops for inflationary gravity","authors":"A.J. Foraci,&nbsp;R.P. Woodard","doi":"10.1016/j.physletb.2025.139649","DOIUrl":"10.1016/j.physletb.2025.139649","url":null,"abstract":"<div><div>We compute the 1-loop contribution to the graviton self-energy from a loop of massless fermions on a general cosmological background. The result is used to quantum-correct the linearized Einstein equation on de Sitter background and work out 1-loop corrections to gravitational radiation and to the response to a point mass. The renormalization group is employed to sum these to all orders for as long as the de Sitter phase persists.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139649"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271570","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":"Strange mesons with one dynamical gluon: A light-front approach","authors":"Jiangshan Lan ,&nbsp;Jialin Chen ,&nbsp;Zhimin Zhu ,&nbsp;Chandan Mondal ,&nbsp;Xingbo Zhao ,&nbsp;James P. Vary ,&nbsp;BLFQ Collaboration","doi":"10.1016/j.physletb.2025.139654","DOIUrl":"10.1016/j.physletb.2025.139654","url":null,"abstract":"<div><div>We obtain the mass spectra of strange mesons using a light-front quantized Hamiltonian with Quantum Chromodynamics (QCD) input, incorporating quark-antiquark and quark-antiquark-gluon Fock components, along with a three-dimensional confinement. We work within the basis light-front quantization framework. The resulting eigenvectors can simultaneously describe the kaon's electromagnetic form factor, decay constant, distribution amplitude, and quark and gluon distribution functions under QCD scale evolution. Using the obtained kaon parton distribution functions (PDFs), supplemented by established nuclear PDFs, we also predict the kaon-nucleus-induced Drell-Yan cross section, which is expected to be measured soon by COMPASS++/AMBER at CERN.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139654"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271586","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":"Geometry of configuration mixing in Bose-Fermi systems","authors":"A. Leviatan,&nbsp;N. Gavrielov","doi":"10.1016/j.physletb.2025.139647","DOIUrl":"10.1016/j.physletb.2025.139647","url":null,"abstract":"<div><div>A geometric interpretation for an algebraic interacting boson-fermion model with configuration mixing is presented. The formalism is based on an extended Bose-Fermi matrix coherent states and is applied to gain insight on intertwined quantum shape-phase transitions and shape coexistence in odd-mass Nb nuclei.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139647"},"PeriodicalIF":4.3,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262133","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 waves from extreme mass ratio inspirals around rotating black holes surrounded by dark matter halo","authors":"Kun Meng ,&nbsp;Jiaqiang Zhao ,&nbsp;Meihua Deng ,&nbsp;Chong Li ,&nbsp;Nan Yang","doi":"10.1016/j.physletb.2025.139630","DOIUrl":"10.1016/j.physletb.2025.139630","url":null,"abstract":"<div><div>Dark matter (DM) has become one of the biggest mysteries in the universe. The next generation gravitatinal wave (GW) detector is designed to detect low-frequency GWs emanating from extreme-mass-ratio-inspiral systems (EMRIs), this provides possibilities to detect DM with low-frequency GWs. In this paper, we calculate the GWs emanating from EMRIs with central SBH being rotating BH surrounded by DM halo (DMBH) and study the effects of DM on the waveforms of GW. We give the orbit of the secondary body by Hamilton-Jacobi (HJ) method, and calculate GWs with numerical Kludge (NK) method. By comparing the waveforms of GWs of DMBH and that of Kerr BH, we find there exist dephasing between the two waveforms. Through calculating mismatch of the two waveforms it's found mismatch increases with the DM parameter <span><math><msub><mrow><mi>c</mi></mrow><mrow><mi>q</mi></mrow></msub></math></span> but decreases with the DM parameter <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>q</mi></mrow></msub></math></span>. As <span><math><msub><mrow><mi>c</mi></mrow><mrow><mi>q</mi></mrow></msub></math></span> increases or <span><math><msub><mrow><mi>ω</mi></mrow><mrow><mi>q</mi></mrow></msub></math></span> decreases, the indistinguishable lower bound may be exceeded, then the gravitational waveforms of DMBH and that of Kerr BH are distinguishable. This allows to distinguish the GWs of DMBH from that of Kerr BH and constrain DM parameters with the observation data of the next generation GW detectors. In addition, the dephasing of the two waveforms is found to increase with the eccentricity of orbit, so more eccentric orbits will help to constrain the DM parameters further.</div></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"868 ","pages":"Article 139630"},"PeriodicalIF":4.3,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262195","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}