Physical Review DPub Date : 2025-03-24DOI: 10.1103/physrevd.111.055024
Karen Macías Cárdenas, Gopolang Mohlabeng, Aaron C. Vincent
{"title":"Global fit to loopy dark matter and neutrino masses","authors":"Karen Macías Cárdenas, Gopolang Mohlabeng, Aaron C. Vincent","doi":"10.1103/physrevd.111.055024","DOIUrl":"https://doi.org/10.1103/physrevd.111.055024","url":null,"abstract":"We investigate a dark matter model that couples to the standard model through a one-loop interaction with neutrinos, where the mediator particles also generate neutrino masses. We perform a global fit that incorporates dark matter relic abundance, primordial nucleosynthesis, neutrino mass, collider, and indirect detection constraints. Thanks to the loop suppression, large couplings are allowed, and we find that the model parameters are constrained on all sides. Dark matter masses from 10 MeV to a few TeV are allowed, but sub-GeV masses are preferred for the model to also account for the heaviest neutrino mass. Though our results are valid for a single neutrino mass eigenstate at a time, the model and methods are generalizable to the full 3-flavor case. <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":"29 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695782","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}
Physical Review DPub Date : 2025-03-24DOI: 10.1103/physrevd.111.063544
Michael J. Baker, Moritz Breitbach, Joachim Kopp, Lukas Mittnacht
{"title":"Detailed calculation of primordial black hole formation during first-order cosmological phase transitions","authors":"Michael J. Baker, Moritz Breitbach, Joachim Kopp, Lukas Mittnacht","doi":"10.1103/physrevd.111.063544","DOIUrl":"https://doi.org/10.1103/physrevd.111.063544","url":null,"abstract":"Primordial black holes could potentially form during a first-order cosmological phase transition due to a buildup of particles which are predominantly reflected from the advancing bubble walls. After discussing the general mechanism, we examine the criteria that need to be satisfied for a black hole to form. We then set out the Boltzmann equation that describes the evolution of the relevant phase space distribution function, carefully describing our treatment of the Liouville operator and the collision term. Assuming a spherical false-vacuum pocket of sufficient size and a constant wall velocity, we find that black holes can form in a range of different scenarios. <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":"24 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695385","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}
Physical Review DPub Date : 2025-03-24DOI: 10.1103/physrevd.111.066016
Sudip Karan, Gurmeet Singh Punia, Surajit Biswas
{"title":"Logarithmic correction to the entropy of a Kerr-Newman family of black holes in U(1)2 -charged STU supergravity models","authors":"Sudip Karan, Gurmeet Singh Punia, Surajit Biswas","doi":"10.1103/physrevd.111.066016","DOIUrl":"https://doi.org/10.1103/physrevd.111.066016","url":null,"abstract":"The leading quantum-gravitational correction to the black hole entropy is known to be a universal logarithmic term. In this study, we investigate the logarithmic corrections for the black holes in the STU supergravity models, which are a bosonic truncation into a specific class of U</a:mi>(</a:mo>1</a:mn>)</a:mo>2</a:mn></a:msup></a:math>-charged Einstein-Maxwell-dilaton theory. We demonstrate how the entire Kerr-Newman-AdS and Kerr-Newman family of black holes can be recovered within the gauged and ungauged STU supergravity models as special embedding choices in 4D. Logarithmic corrections are computed using two distinct Euclidean quantum gravity setups for extremal and nonextremal limits of all embedded rotating, static, charged, and neutral black holes. Our calculations employ the on-shell heat kernel method based Seeley-DeWitt expansion computations. Notably, all the <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mrow><e:msub><e:mrow><e:mi>AdS</e:mi></e:mrow><e:mrow><e:mn>4</e:mn></e:mrow></e:msub></e:mrow></e:math> results exhibit a confirmed nontopological nature as compared to the flat counterparts, offering a natural and more comprehensive “infrared window into the microstates” of black holes. <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":"25 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695386","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}
Physical Review DPub Date : 2025-03-21DOI: 10.1103/physrevd.111.056024
M. Siddikov, I. Zemlyakov, M. Roa, S. Valdebenito
{"title":"Photoproduction of ηcγ pairs in the CGC framework","authors":"M. Siddikov, I. Zemlyakov, M. Roa, S. Valdebenito","doi":"10.1103/physrevd.111.056024","DOIUrl":"https://doi.org/10.1103/physrevd.111.056024","url":null,"abstract":"In this paper we analyzed the exclusive photoproduction of η</a:mi>c</a:mi></a:msub>γ</a:mi></a:math> pairs in the color glass condensate framework. We found that the cross section of this process is sensitive only to the forward dipole scattering amplitude, and thus could be used as a new tool for analysis of this fundamental nonperturbative object. Using the phenomenological parametrizations of this object, we estimated numerically the production cross section and counting rates in the kinematics of the ongoing and forthcoming experiments at LHC and future Electron Ion Collider. We found that the cross section is sufficiently large for dedicated experimental study. We also estimated the role of this process as a potential background to <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msub><c:mi>η</c:mi><c:mi>c</c:mi></c:msub></c:math> photoproduction, which is conventionally considered as a gateway for studies of odderons. We found that the contribution of <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msub><e:mi>η</e:mi><e:mi>c</e:mi></e:msub><e:mi>γ</e:mi></e:math> (with undetected photon) is on par with expected contributions of odderons in the kinematics of small momentum transfer <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mo stretchy=\"false\">|</g:mo><g:mi>t</g:mi><g:mo stretchy=\"false\">|</g:mo><g:mo>≲</g:mo><g:mn>1</g:mn><g:mtext> </g:mtext><g:mtext> </g:mtext><g:msup><g:mrow><g:mi>GeV</g:mi></g:mrow><g:mrow><g:mn>2</g:mn></g:mrow></g:msup></g:math>, though decreases rapidly at larger <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mo stretchy=\"false\">|</k:mo><k:mi>t</k:mi><k:mo stretchy=\"false\">|</k:mo></k:math>. Finally, we also calculated the feeddown contribution (from radiative decays of other charmonia) and found that a sizable correction comes from <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:mi>J</o:mi><o:mo>/</o:mo><o:mi>ψ</o:mi><o:mo stretchy=\"false\">→</o:mo><o:msub><o:mi>η</o:mi><o:mi>c</o:mi></o:msub><o:mi>γ</o:mi></o:math> decays. This contribution remains pronounced even at relatively large <r:math xmlns:r=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><r:mo stretchy=\"false\">|</r:mo><r:mi>t</r:mi><r:mo stretchy=\"false\">|</r:mo></r:math> and potentially can impose constraint on detectability of odderons via <v:math xmlns:v=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><v:msub><v:mi>η</v:mi><v:mi>c</v:mi></v:msub></v:math> photoproduction. <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":"56 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666682","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}
Physical Review DPub Date : 2025-03-21DOI: 10.1103/physrevd.111.053007
S. P. Behera
{"title":"Sensitivity study of a sapphire detector using coherent elastic neutrino-nucleus scattering processes","authors":"S. P. Behera","doi":"10.1103/physrevd.111.053007","DOIUrl":"https://doi.org/10.1103/physrevd.111.053007","url":null,"abstract":"The Indian Coherent Neutrino-nucleus Scattering Experiment (ICNSE) has been proposed at Bhabha Atomic Research Centre in India to measure the coherent elastic neutrino-nucleus scattering process using electron antineutrinos produced from reactors. Phenomenological studies are performed to find out the sensitivity of a sapphire detector for various fundamental physics parameters at an exposure of one year. Reactors of different core compositions, sizes, and thermal powers have been considered as sources of electron antineutrinos. The potential of the ICNSE to measure the weak mixing angle at a low energy regime has been extracted. Furthermore, the detector’s capability has been investigated for examining the electromagnetic properties of neutrinos, including their magnetic moment. Additionally, an exploration has been conducted on the detector’s sensitivity in restricting new interactions between neutrinos and electrons or nuclei, thereby constraining the parameter space related to light mediators. It is found that the ICNSE detector can put a stronger constraints on the scalar and vector mediators masses. <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":"93 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672322","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}
Physical Review DPub Date : 2025-03-21DOI: 10.1103/physrevd.111.055019
David E. Kaplan, Xuheng Luo, Surjeet Rajendran
{"title":"Probing long-range forces between neutrinos with cosmic structures","authors":"David E. Kaplan, Xuheng Luo, Surjeet Rajendran","doi":"10.1103/physrevd.111.055019","DOIUrl":"https://doi.org/10.1103/physrevd.111.055019","url":null,"abstract":"We study the consequences of new long-range forces between neutrinos on cosmic scales. If these forces are a few orders of magnitude stronger than gravity, they can induce perturbation instability in the nonrelativistic cosmic neutrino background in the late time universe. As a result, the cosmic neutrino background may form nonlinear bound states instead of free-streaming. The implications of the formation of nonlinear neutrino bound states include enhancing matter perturbations and triggering star formation. Based on existing measurements of the matter power spectrum and reionization history, we place new constraints on long-range forces between neutrinos with ranges lying in 1</a:mn></a:mtext></a:mtext>kpc</a:mi>≲</a:mo>m</a:mi>ϕ</a:mi>−</a:mo>1</a:mn></a:mrow></a:msubsup>≲</a:mo>10</a:mn></a:mtext></a:mtext>Mpc</a:mi></a: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":"27 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672324","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}
Physical Review DPub Date : 2025-03-21DOI: 10.1103/physrevd.111.053006
Wei Wang, Zhi-Peng Xing, Zhen-Xing Zhao
{"title":"Implications on the CP violation of charmless three body decays of bottom baryons from a U -spin analysis","authors":"Wei Wang, Zhi-Peng Xing, Zhen-Xing Zhao","doi":"10.1103/physrevd.111.053006","DOIUrl":"https://doi.org/10.1103/physrevd.111.053006","url":null,"abstract":"Motivated by recent LHCb measurements of C</a:mi>P</a:mi></a:math> violation in <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msub><c:mi mathvariant=\"normal\">Λ</c:mi><c:mi>b</c:mi></c:msub></c:math> three body decays, we conduct an analysis of <f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mi>C</f:mi><f:mi>P</f:mi></f:math> asymmetry in three body decays of bottom baryons utilizing <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><h:mi>U</h:mi></h:math>-spin symmetry. We first develop a convenient representation that facilitates the incorporation of <j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><j:mi>U</j:mi></j:math>-spin symmetry into our analysis. By integrating weak and strong phases into the derived amplitude, we obtain the <l:math xmlns:l=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><l:mi>C</l:mi><l:mi>P</l:mi></l:math> asymmetry and establish relationships between <n:math xmlns:n=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><n:mi>C</n:mi><n:mi>P</n:mi></n:math> asymmetries in <p:math xmlns:p=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><p:mi>U</p:mi></p:math>-spin related decay channels. With the help of experimental measurements, we provide numerical predictions for 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> asymmetries for other decay channels, particularly <t:math xmlns:t=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><t:msubsup><t:mi mathvariant=\"normal\">Ξ</t:mi><t:mi>b</t:mi><t:mn>0</t:mn></t:msubsup><t:mo stretchy=\"false\">→</t:mo><t:mi mathvariant=\"normal\">Λ</t:mi><t:msup><t:mi>π</t:mi><t:mo>+</t:mo></t:msup><t:msup><t:mi>π</t:mi><t:mo>−</t:mo></t:msup></t:math> under a specific scenario. Furthermore, we provide a quantity that can be used as a null test of the <y:math xmlns:y=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><y:mrow><y:mi>SU</y:mi><y:mo stretchy=\"false\">(</y:mo><y:mn>3</y:mn><y:mo stretchy=\"false\">)</y:mo></y:mrow></y:math> symmetry and standard model. Deviations from zero would indicate potential new physics if they exceed the expected magnitude of <cb:math xmlns:cb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><cb:mrow><cb:mi>SU</cb:mi><cb:mo stretchy=\"false\">(</cb:mo><cb:mn>3</cb:mn><cb:mo stretchy=\"false\">)</cb:mo></cb:mrow></cb:math> breaking effects. These results are valuable for <gb:math xmlns:gb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><gb:mi>C</gb:mi><gb:mi>P</gb:mi></gb:math> violation measurements in baryon decays, and can be tested in future experiments. <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":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672319","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}
Physical Review DPub Date : 2025-03-21DOI: 10.1103/physrevd.111.055020
Nicole F. Bell, Matthew J. Dolan, Avirup Ghosh, Michael Virgato
{"title":"Neutrino portals to MeV WIMPs with s -channel mediators","authors":"Nicole F. Bell, Matthew J. Dolan, Avirup Ghosh, Michael Virgato","doi":"10.1103/physrevd.111.055020","DOIUrl":"https://doi.org/10.1103/physrevd.111.055020","url":null,"abstract":"Large-scale neutrino detectors currently under construction will have the unique ability to probe the annihilation of low-mass thermal-relic dark matter to neutrinos. This represents an essential test of the thermal freeze-out paradigm. This raises the question: what viable UV-complete models are there in which dark matter annihilates dominantly to neutrinos? We discuss models that fulfill these criteria, and are invariant under the Standard Model gauge group, for both scalar and fermionic dark matter. Specifically, we construct new models in which annihilation via the s</a:mi></a:math>-channel exchange of a scalar or pseudoscalar mediator achieves the correct relic density. In these models, dark matter is stabilized by an exact or a softly broken lepton-number symmetry. The parameter space of such models will be probed, almost entirely, by the combination of JUNO, Hyper-Kamiokande, and CMB-S4. <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":"56 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672325","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}
Physical Review DPub Date : 2025-03-21DOI: 10.1103/physrevd.111.054511
Antoine Gérardin, Willem E. A. Verplanke, Gen Wang, Zoltan Fodor, Jana N. Guenther, Laurent Lellouch, Kalman K. Szabo, Lukas Varnhorst
{"title":"Lattice calculation of the π0 , η and η′ transition form factors and the hadronic light-by-light contribution to the muon g−2","authors":"Antoine Gérardin, Willem E. A. Verplanke, Gen Wang, Zoltan Fodor, Jana N. Guenther, Laurent Lellouch, Kalman K. Szabo, Lukas Varnhorst","doi":"10.1103/physrevd.111.054511","DOIUrl":"https://doi.org/10.1103/physrevd.111.054511","url":null,"abstract":"In this paper we present a first calculation of the π</a:mi>0</a:mn></a:msup></a:math>, <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>η</c:mi></c:math> and <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msup><e:mi>η</e:mi><e:mo>′</e:mo></e:msup></e:math> transition form factors performed with physical light-quark masses. We provide a complete parametrization of the form factors that includes both single and double-virtual kinematics. Our results are compared with experimental measurements of the form factors in the spacelike region and with the measured two-photon decay widths. In a second step, our parametrizations of the transition form factors are used to compute the dominant pseudoscalar-pole contributions to the hadronic light-by-light scattering in the muon <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mi>g</g:mi><g:mo>−</g:mo><g:mn>2</g:mn></g:math>. Our final result reads <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mrow><i:msubsup><i:mrow><i:mi>a</i:mi></i:mrow><i:mrow><i:mi>μ</i:mi></i:mrow><i:mrow><i:mi>hlbl</i:mi><i:mo>,</i:mo><i:mtext>ps-pole</i:mtext></i:mrow></i:msubsup><i:mo>=</i:mo><i:mo stretchy=\"false\">(</i:mo><i:mn>85.1</i:mn><i:mo>±</i:mo><i:mn>5.2</i:mn><i:mo stretchy=\"false\">)</i:mo><i:mo>×</i:mo><i:msup><i:mrow><i:mn>10</i:mn></i:mrow><i:mrow><i:mo>−</i:mo><i:mn>11</i:mn></i:mrow></i:msup></i:mrow></i:math>. Although the pion-pole is dominant, we confirm that, together, the <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>η</m:mi></m:math> and <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:msup><o:mi>η</o:mi><o:mo>′</o:mo></o:msup></o:math> provide roughly half of its contribution. <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":"23 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672320","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}
Physical Review DPub Date : 2025-03-21DOI: 10.1103/physrevd.111.054023
Tian-Cai Peng, Zi-Yue Bai, Jun-Zhang Wang, Xiang Liu
{"title":"Reevaluating the ψ(4160) resonance parameter using B+→K+μ+μ− data in the context of unquenched charmonium spectroscopy","authors":"Tian-Cai Peng, Zi-Yue Bai, Jun-Zhang Wang, Xiang Liu","doi":"10.1103/physrevd.111.054023","DOIUrl":"https://doi.org/10.1103/physrevd.111.054023","url":null,"abstract":"A puzzling phenomenon, where the measured mass of the ψ</a:mi>(</a:mo>4160</a:mn>)</a:mo></a:math> is pushed higher, presents a challenge to current theoretical models of hadron spectroscopy. This study suggests that the issue arises from analyses based on the outdated quenched charmonium spectrum. In the past two decades, the discovery of new hadronic states has emphasized the importance of the unquenched effect. Under the unquenched picture, six vector charmonium states—<e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mi>ψ</e:mi><e:mo stretchy=\"false\">(</e:mo><e:mn>4040</e:mn><e:mo stretchy=\"false\">)</e:mo></e:math>, <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mi>ψ</i:mi><i:mo stretchy=\"false\">(</i:mo><i:mn>4160</i:mn><i:mo stretchy=\"false\">)</i:mo></i:math>, <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>ψ</m:mi><m:mo stretchy=\"false\">(</m:mo><m:mn>4220</m:mn><m:mo stretchy=\"false\">)</m:mo></m:math>, <q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><q:mi>ψ</q:mi><q:mo stretchy=\"false\">(</q:mo><q:mn>4380</q:mn><q:mo stretchy=\"false\">)</q:mo></q:math>, <u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><u:mi>ψ</u:mi><u:mo stretchy=\"false\">(</u:mo><u:mn>4415</u:mn><u:mo stretchy=\"false\">)</u:mo></u:math>, and <y:math xmlns:y=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><y:mi>ψ</y:mi><y:mo stretchy=\"false\">(</y:mo><y:mn>4500</y:mn><y:mo stretchy=\"false\">)</y:mo></y:math>—are identified in the 4–4.5 GeV range, contrasting with the three states predicted in the quenched model. We reevaluate the resonance parameters of the <cb:math xmlns:cb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><cb:mi>ψ</cb:mi><cb:mo stretchy=\"false\">(</cb:mo><cb:mn>4160</cb:mn><cb:mo stretchy=\"false\">)</cb:mo></cb:math> using the dimuon invariant mass spectrum of <gb:math xmlns:gb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><gb:msup><gb:mi>B</gb:mi><gb:mo>+</gb:mo></gb:msup><gb:mo stretchy=\"false\">→</gb:mo><gb:msup><gb:mi>K</gb:mi><gb:mo>+</gb:mo></gb:msup><gb:msup><gb:mi>μ</gb:mi><gb:mo>+</gb:mo></gb:msup><gb:msup><gb:mi>μ</gb:mi><gb:mo>−</gb:mo></gb:msup></gb:math> and unquenched charmonium spectroscopy. Our analysis indicates previous experimental overestimations for the mass of the <jb:math xmlns:jb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><jb:mi>ψ</jb:mi><jb:mo stretchy=\"false\">(</jb:mo><jb:mn>4160</jb:mn><jb:mo stretchy=\"false\">)</jb:mo></jb:math>. This conclusion is supported by analyzing <nb:math xmlns:nb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><nb:msup><nb:mi>e</nb:mi><nb:mo>+</nb:mo></nb:msup><nb:msup><nb:mi>e</nb:mi><nb:mo>−</nb:mo></nb:msup><nb:mo stretchy=\"false\">→</nb:mo><nb:msub><nb:mi>D</nb:mi><nb:mi>s</nb:mi></nb:msub><nb:msubsup><nb:mover accent=\"true\"><nb:mi>D</nb:mi><nb:mo stretchy=\"false\">¯</nb:mo></nb:mover><nb:mi>s</nb:mi><nb:mo>*</nb:mo></nb:msubsup></nb:math>, which finds the <","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"183 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672321","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}