Physical Review D最新文献

{"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}

{"title":"Lepton-proton two-photon exchange with improved soft-photon approximation including proton’s structure effects in HBχPT","authors":"Rakshanda Goswami, Pulak Talukdar, Bhoomika Das, Udit Raha, Fred Myhrer","doi":"10.1103/physrevd.111.113009","DOIUrl":"https://doi.org/10.1103/physrevd.111.113009","url":null,"abstract":"We present an improved evaluation of the two-photon exchange correction to the unpolarized lepton-proton elastic scattering process at very low-energies relevant to the MUSE experiment, where only the dominant intermediate elastic proton is considered. We employ the framework of heavy baryon chiral perturbation theory and invoke the soft-photon approximation in order to reduce the intricate 4-point loop-integrals into simpler 3-point loop-integrals. In the present work, we adopt a more robust methodology compared to an earlier work along the same lines for analytically evaluating the loop-integrations, and incorporate important corrections at next-to-next-to-leading order. These include the proton’s structure effects which renormalize the proton-photon interaction vertices and the proton’s propagator. Finally, our results allow a model-independent estimation of the charge asymmetry for the scattering of unpolarized massive leptons and antileptons. <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":"246 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144500388","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":"Classification of minimal Abelian Coulomb branches","authors":"Antoine Bourget, Quentin Lamouret, Sinan Moura Soysüren, Marcus Sperling","doi":"10.1103/physrevd.111.125020","DOIUrl":"https://doi.org/10.1103/physrevd.111.125020","url":null,"abstract":"Obtaining the classification of three-dimensional (3D) N</a:mi>=</a:mo>4</a:mn></a:math> quivers whose Coulomb branches have an isolated singularity is an essential step in understanding moduli spaces of vacua of supersymmetric field theories with eight supercharges in any dimension. In this work, we derive a full classification for such Abelian quivers with arbitrary charges and identify all possible Coulomb branch geometries as quotients of <d:math xmlns:d=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><d:msup><d:mi mathvariant=\"double-struck\">H</d:mi><d:mi>n</d:mi></d:msup></d:math> by U(1) or a finite cyclic group. We give two proofs, one which uses the “decay and fission” algorithm and another one relying only on explicit computations involving 3D mirror symmetry. In the process, we put forward a method for computing the 3D mirror of any <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi mathvariant=\"normal\">U</g:mi><g:mo stretchy=\"false\">(</g:mo><g:mn>1</g:mn><g:msup><g:mo stretchy=\"false\">)</g:mo><g:mi>r</g:mi></g:msup></g:math> gauge theory, which is sensitive to discrete gauge factors in the mirror theory. This constitutes a confirmation for the decay and fission algorithm. <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":"31 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479418","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":"Light states in real multi-Higgs models with spontaneous CP violation","authors":"Carlos Miró, Miguel Nebot, Daniel Queiroz","doi":"10.1103/physrevd.111.l111703","DOIUrl":"https://doi.org/10.1103/physrevd.111.l111703","url":null,"abstract":"In models with extended scalar sectors consisting of multiple Higgs doublets that trigger spontaneous electroweak symmetry breaking, it might be expected that the abundance of dimensionful quadratic couplings in the scalar potential could allow for a regime where, apart from the would-be Goldstone bosons and a neutral Higgs-like state, all new scalars have masses much larger than the electroweak scale. In the case of models where C</a:mi>P</a:mi></a:math> invariance holds at the Lagrangian level but is broken by the vacuum, we show that such a reasonable expectation does not hold. When perturbativity requirements are placed on the dimensionless quartic couplings, the spectrum of the new scalars includes one charged and two additional neutral states whose masses cannot be much larger than the electroweak scale. <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":"182 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144488361","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":"Testing the RG running of the leptonic Dirac CP phase with reactor neutrinos","authors":"Shao-Feng Ge, Chui-Fan Kong, Pedro Pasquini","doi":"10.1103/physrevd.111.115031","DOIUrl":"https://doi.org/10.1103/physrevd.111.115031","url":null,"abstract":"We propose the possibility of using the near detector at reactor neutrino experiments to probe the renormalization group (RG) running effect on the leptonic Dirac C</a:mi>P</a:mi></a:math> phase <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msub><c:mi>δ</c:mi><c:mi>D</c:mi></c:msub></c:math>. Although the reactor neutrino oscillation cannot directly measure <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msub><e:mi>δ</e:mi><e:mi>D</e:mi></e:msub></e:math>, it can probe the deviation <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi mathvariant=\"normal\">Δ</g:mi><g:mi>δ</g:mi><g:mo>≡</g:mo><g:msub><g:mi>δ</g:mi><g:mi>D</g:mi></g:msub><g:mo stretchy=\"false\">(</g:mo><g:msubsup><g:mi>Q</g:mi><g:mi>d</g:mi><g:mn>2</g:mn></g:msubsup><g:mo stretchy=\"false\">)</g:mo><g:mo>−</g:mo><g:msub><g:mi>δ</g:mi><g:mi>D</g:mi></g:msub><g:mo stretchy=\"false\">(</g:mo><g:msubsup><g:mi>Q</g:mi><g:mi>p</g:mi><g:mn>2</g:mn></g:msubsup><g:mo stretchy=\"false\">)</g:mo></g:math> caused by the RG running. Being a key element, the mismatched momentum transfers at neutrino production (<n:math xmlns:n=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><n:msubsup><n:mi>Q</n:mi><n:mi>p</n:mi><n:mn>2</n:mn></n:msubsup></n:math>) and detection (<p:math xmlns:p=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><p:msubsup><p:mi>Q</p:mi><p:mi>d</p:mi><p:mn>2</p:mn></p:msubsup></p:math>) processes can differ by two orders. We illustrate this concept with the upcoming Taishan Antineutrino Observatory (TAO, also known as JUNO-TAO) experiment and obtain the projected sensitivity to the <r:math xmlns:r=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><r:mi>C</r:mi><r:mi>P</r:mi></r:math> RG running beta function <t:math xmlns:t=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><t:msub><t:mi>β</t:mi><t:mi>δ</t:mi></t:msub></t: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":"235 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479419","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":"Growing black-hole hair in nonminimally coupled biscalar gravity","authors":"Chloe Richards, Alexandru Dima, Deborah Ferguson, Helvi Witek","doi":"10.1103/physrevd.111.124039","DOIUrl":"https://doi.org/10.1103/physrevd.111.124039","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"17 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479562","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":"Extremal black hole weather","authors":"Claudio Iuliano, Stefan Hollands, Stephen R. Green, Peter Zimmerman","doi":"10.1103/physrevd.111.124038","DOIUrl":"https://doi.org/10.1103/physrevd.111.124038","url":null,"abstract":"We consider weakly nonlinear gravitational perturbations of a near-extremal Kerr black hole governed by the second-order vacuum Einstein equation. Using the GHZ [for , ], these are parametrized by a Hertz potential. We make an ansatz for the Hertz potential as a series of zero-damped quasinormal modes (QNMs) with time-dependent amplitudes, and derive a nonlinear dynamical system for them. We find that our dynamical system has a time-independent solution within the near-horizon scaling limit. This equilibrium solution is supported on axisymmetric modes, with amplitudes scaling as c</a:mi></a:mrow>ℓ</a:mo></a:mrow></a:msub>∼</a:mo>C</a:mi></a:mrow>low</a:mi></a:mrow></a:msup>2</a:mn></a:mrow>−</a:mo>ℓ</a:mo></a:mrow>2</a:mn></a:mrow></a:mfrac></a:mrow></a:msup>ℓ</a:mo></a:mrow>−</a:mo>7</a:mn></a:mrow>2</a:mn></a:mrow></a:mfrac></a:mrow></a:msup></a:mrow></a:math> for large polar angular momentum mode number <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mo>ℓ</c:mo></c:math>, where <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msup><e:mi>C</e:mi><e:mi>low</e:mi></e:msup></e:math> is a cumulative amplitude of the low <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mo>ℓ</g:mo></g:math> modes. We interpret our result as evidence that the dynamical evolution will approach, for a parametrically long time as extremality is approached, a distribution of mode amplitudes exponentially suppressed in <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mo>ℓ</i:mo></i:math>, hence as the end point of an inverse cascade. It is reminiscent of weatherlike phenomena in certain models of atmospheric dynamics of rotating bodies. During the timescale considered, the decay of the QNMs themselves plays no role given their parametrically long half-life. Hence, our result is due entirely to weakly nonlinear 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":"242 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370538","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-matter-induced transients over cosmic time: The role of star formation history profiles","authors":"H. Steigerwald","doi":"10.1103/physrevd.111.123543","DOIUrl":"https://doi.org/10.1103/physrevd.111.123543","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"628 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479563","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":"Redshift tomography of the kinematic matter dipole","authors":"Sebastian von Hausegger, Charles Dalang","doi":"10.1103/physrevd.111.123547","DOIUrl":"https://doi.org/10.1103/physrevd.111.123547","url":null,"abstract":"The dipole anisotropy induced by our peculiar motion in the sky distribution of cosmologically distant sources is an important consistency test of the standard Friedmann-Lemaître-Robertson-Walker cosmology. In this work, we formalize how to compute the kinematic matter dipole in redshift bins. Apart from the usual terms arising from angular aberration and flux boosting, there is a contribution from the boosting of the redshifts that becomes important when considering a sample selected on observed redshift, leading to nonvanishing correction terms. We discuss examples and provide expressions to incorporate arbitrary redshift selection functions. We also discuss the effect of redshift measurement uncertainties in this context, in particular in upcoming surveys for which we provide estimates of the correction terms. Depending on the shape of a sample’s redshift distribution and on the applied redshift cuts, the correction terms can become substantial, even to the degree that the direction of the dipole is reversed. Lastly, we discuss how cuts on variables correlated with observed redshift, such as color, can induce additional correction terms. <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":"36 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479421","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}