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Probing the Schwarzschild black hole in modified gravity by precessing motion 用进动法探测修正重力下的史瓦西黑洞
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-10-01 DOI: 10.1016/j.physletb.2026.140916
Bo Yang,Jie Li,Chunhua Jiang,Wenbin Lin
{"title":"Probing the Schwarzschild black hole in modified gravity by precessing motion","authors":"Bo Yang,Jie Li,Chunhua Jiang,Wenbin Lin","doi":"10.1016/j.physletb.2026.140916","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140916","url":null,"abstract":"","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"54 1","pages":"140916"},"PeriodicalIF":4.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148894110","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}
引用次数: 0
Topologically equivalent yet radiatively distinct orbits in EMRI system EMRI系统中拓扑等效但辐射不同的轨道
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-10-01 DOI: 10.1016/j.physletb.2026.140924
Chao-Hui Wang,Shao-Wen Wei,Tao Zhu,Yu-Xiao Liu
{"title":"Topologically equivalent yet radiatively distinct orbits in EMRI system","authors":"Chao-Hui Wang,Shao-Wen Wei,Tao Zhu,Yu-Xiao Liu","doi":"10.1016/j.physletb.2026.140924","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140924","url":null,"abstract":"","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"8 1","pages":"140924"},"PeriodicalIF":4.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148894113","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}
引用次数: 0
New Supernova Constraints on Vector-Mediated Neutrinophilic Dark Sector 载体介导的嗜中微子暗扇区的新超新星约束
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-09-02 DOI: 10.1016/j.physletb.2026.140923
Christopher V. Cappiello, P.S. Bhupal Dev, Amol V. Patwardhan
{"title":"New Supernova Constraints on Vector-Mediated Neutrinophilic Dark Sector","authors":"Christopher V. Cappiello, P.S. Bhupal Dev, Amol V. Patwardhan","doi":"10.1016/j.physletb.2026.140923","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140923","url":null,"abstract":"Supernova cooling has long been used to constrain physics beyond the Standard Model, typically involving new mediators or dark matter (DM) particles that couple to nucleons or electrons. In this work, we show that the large density of neutrinos inside the neutrinosphere of supernovae also makes them powerful laboratories to study nonstandard neutrino interactions with a <ce:italic>neutrinophilic</ce:italic> dark sector, i.e. DM and mediator particles interacting primarily with neutrinos. In this case, we find that the existing constraints are rather weak, and for a wide range of currently unconstrained parameter space, neutrino annihilation within a supernova could copiously produce such neutrinophilic DM at a large enough rate to cause noticeable anomalous cooling. From the non-observation of such anomalous cooling in SN1987A, we thus set new constraints on neutrino-DM interactions, which provide up to five orders of magnitude improvement in the effective coupling over the existing constraints for DM masses below <mml:math altimg=\"si10.svg\"><mml:mi mathvariant=\"script\">O</mml:mi></mml:math>(100 MeV).","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"5 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883496","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}
引用次数: 0
One-loop proton decay from Peccei-Quinn symmetry Peccei-Quinn对称的单环质子衰变
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-09-02 DOI: 10.1016/j.physletb.2026.140918
H.B. Câmara
{"title":"One-loop proton decay from Peccei-Quinn symmetry","authors":"H.B. Câmara","doi":"10.1016/j.physletb.2026.140918","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140918","url":null,"abstract":"We promote the accidental <mml:math altimg=\"si35.svg\"><mml:mrow><mml:mi>B</mml:mi><mml:mo linebreak=\"goodbreak\">+</mml:mo><mml:mi>L</mml:mi></mml:mrow></mml:math> symmetry of the Standard Model to a Peccei-Quinn (PQ) symmetry while realizing spontaneous proton decay radiatively. The PQ anomaly sector consists of vector-like quarks (VLQs), providing a Kim-Shifman-Vainshtein-Zakharov-type axion solution to the strong CP problem. After spontaneous PQ breaking, a residual <mml:math altimg=\"si4.svg\"><mml:msub><mml:mi mathvariant=\"script\">Z</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math> symmetry remains, which forbids tree-level proton decay. The VLQs required to generate the QCD anomaly, together with scalar mediators, odd under the residual <mml:math altimg=\"si4.svg\"><mml:msub><mml:mi mathvariant=\"script\">Z</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>, induce one-loop proton decay through the effective operator <ce:italic>u<ce:inf loc=\"post\">R</ce:inf>u<ce:inf loc=\"post\">R</ce:inf>d<ce:inf loc=\"post\">R</ce:inf>e<ce:inf loc=\"post\">R</ce:inf></ce:italic>. We study its ultraviolet completions, featuring distinct vector-like fermion and scalar representations, and show that the resulting models lead to distinct predictions for the axion-to-photon coupling, testable in helioscope and haloscope experiments. We investigate proton and neutron decay pheneomenology focusing on the channel <mml:math altimg=\"si36.svg\"><mml:mrow><mml:mi>p</mml:mi><mml:mo>→</mml:mo><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:mrow></mml:math>. We also discuss axion dark matter in pre- and post-inflationary cosmology.","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"19 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883497","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}
引用次数: 0
Innermost stable circular orbit of Kerr-Bertotti-Robinson black holes and inspirals from it: Exact solutions kerr - bertoti - robinson黑洞最内层稳定圆轨道及其灵感：精确解
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-09-02 DOI: 10.1016/j.physletb.2026.140913
Tower Wang
{"title":"Innermost stable circular orbit of Kerr-Bertotti-Robinson black holes and inspirals from it: Exact solutions","authors":"Tower Wang","doi":"10.1016/j.physletb.2026.140913","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140913","url":null,"abstract":"For an uncharged test particle in the Kerr-Bertotti-Robinson spacetime, exact solutions of two important types of orbits are presented, both in closed forms. First, for both prograde and retrograde motions, the radii of innermost stable circular orbits are expressed fully in terms of the outer and inner horizon radii just in the same form as Kerr black holes, despite the fact that Kerr-Bertotti-Robinson black holes have three parameters. Second, a closed-form solution is given to the problem of a test particle inspiraling toward the Kerr-Bertotti-Robinson black hole from innermost stable circular orbits at the infinitely distant past. These exact solutions are rare in other spacetimes, and they can serve as a springboard for more general solutions and astrophysical applications of Kerr-Bertotti-Robinson black holes in the future.","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"23 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883499","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}
引用次数: 0
Neural-network excited states of [formula omitted] nuclei and hypernuclei [公式省略]核和超核的神经网络激发态
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-09-02 DOI: 10.1016/j.physletb.2026.140911
Zi-Xiao Zhang, Yi-Long Yang, Xiao-Lu Qian, Wan-Bing He, Peng-Wei Zhao, Bing-Nan Lu, Yu-Gang Ma
{"title":"Neural-network excited states of [formula omitted] nuclei and hypernuclei","authors":"Zi-Xiao Zhang, Yi-Long Yang, Xiao-Lu Qian, Wan-Bing He, Peng-Wei Zhao, Bing-Nan Lu, Yu-Gang Ma","doi":"10.1016/j.physletb.2026.140911","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140911","url":null,"abstract":"We present the first variational Monte Carlo study of nuclear and hypernuclear excited states within the neural-network quantum states (NQS) framework. We implement both the overlap penalty (OP) and natural excited state (NES) methods to compute low-lying excitation spectra. To address the spin contamination in hypernuclear calculations, we propose a quantum number targeting (QNT) technique for the OP method. Both the OP-QNT and NES methods can reproduce diagonal observables, such as energies and spatial structures, in excellent agreement with rigorous benchmarks. We further provide, to our knowledge, the first <ce:italic>ab initio</ce:italic> calculation of the <ce:italic>M</ce:italic>1 transition strength for <mml:math altimg=\"si1.svg\"><mml:mrow><mml:msubsup><mml:mrow></mml:mrow><mml:mstyle mathvariant=\"normal\"><mml:mi>Λ</mml:mi></mml:mstyle><mml:mn>4</mml:mn></mml:msubsup><mml:mi mathvariant=\"normal\">H</mml:mi></mml:mrow></mml:math>. The calculated transition strength is consistent with the weak-coupling limit, exhibiting a ∼ 1.3% suppression. This work demonstrates that NQS can be elevated from ground-state solvers to practical tools for nuclear and hypernuclear spectroscopy.","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"389 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883623","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}
引用次数: 0
Testing Modified Teleparallel Gravity by Neutrino Oscillations 用中微子振荡检验修正遥平行引力
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-09-02 DOI: 10.1016/j.physletb.2026.140917
H. Yazdani Ahmadabadi, H. Mohseni Sadjadi
{"title":"Testing Modified Teleparallel Gravity by Neutrino Oscillations","authors":"H. Yazdani Ahmadabadi, H. Mohseni Sadjadi","doi":"10.1016/j.physletb.2026.140917","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140917","url":null,"abstract":"In the framework of modified teleparallel gravity, we study the neutrino flavor conversion. We show how the presence of spacetime torsion modifies both neutrino flavor oscillation and the matter-enhanced Mikheyev-Smirnov-Wolfenstein (MSW) resonance. Using data from solar neutrino experiments, we perform an analysis to place new bounds on the modified teleparallel model parameters and neutrino-torsion coupling. Our numerical results indicate that the resulting modifications to the neutrino survival probability may explain potential observational discrepancies in current and future observatories without invoking new physics or non-standard interactions.","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"18 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883498","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}
引用次数: 0
Interior evolution of regular Schwarzschild black holes 规则史瓦西黑洞的内部演化
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-09-02 DOI: 10.1016/j.physletb.2026.140912
J. Ovalle
{"title":"Interior evolution of regular Schwarzschild black holes","authors":"J. Ovalle","doi":"10.1016/j.physletb.2026.140912","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140912","url":null,"abstract":"We present an exact, purely geometric description of the interior evolution of Schwarzschild black holes, formulated without invoking any specific gravitational theory and free of additional charges beyond the total mass <mml:math altimg=\"si10.svg\"><mml:mi mathvariant=\"script\">M</mml:mi></mml:math>. We show that the time dependent interior generically produces new singularities, absent in the static case, whose resolution imposes highly restrictive conditions on gravitational collapse.","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"9 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883500","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}
引用次数: 0
Charm quark production in heavy-ion collisions as a signature of pre-equilibrium 重离子碰撞中粲夸克的产生作为预平衡的标志
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-09-01 DOI: 10.1016/j.physletb.2026.140931
Maurice Coquet,Thomas Faure,Sören Schlichting,Mika Spier,Michael Winn
{"title":"Charm quark production in heavy-ion collisions as a signature of pre-equilibrium","authors":"Maurice Coquet,Thomas Faure,Sören Schlichting,Mika Spier,Michael Winn","doi":"10.1016/j.physletb.2026.140931","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140931","url":null,"abstract":"","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"59 1","pages":"140931"},"PeriodicalIF":4.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148895871","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}
引用次数: 0
Krylov complexity of a massless scalar field in massive BTZ black hole with quantum fluctuation 具有量子涨落的大质量BTZ黑洞中无质量标量场的Krylov复杂度
IF 4.4 2区 物理与天体物理
Physics Letters B Pub Date : 2026-09-01 DOI: 10.1016/j.physletb.2026.140927
Yu-Ting Zhou,Xiao-Mei Kuang
{"title":"Krylov complexity of a massless scalar field in massive BTZ black hole with quantum fluctuation","authors":"Yu-Ting Zhou,Xiao-Mei Kuang","doi":"10.1016/j.physletb.2026.140927","DOIUrl":"https://doi.org/10.1016/j.physletb.2026.140927","url":null,"abstract":"","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"195 1","pages":"140927"},"PeriodicalIF":4.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148894118","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}
引用次数: 0
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