Physical Review D最新文献

{"title":"Study of electron-positron annihilation into KK¯π within resonance chiral theory","authors":"Bing-Hai Qin, Wen Qin, Ling-Yun Dai","doi":"10.1103/physrevd.111.034025","DOIUrl":"https://doi.org/10.1103/physrevd.111.034025","url":null,"abstract":"In this paper, a coherent study of the e</a:mi>+</a:mo></a:msup>e</a:mi>−</a:mo></a:msup></a:math> annihilation into <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msup><c:mi>K</c:mi><c:mo>+</c:mo></c:msup><c:msup><c:mi>K</c:mi><c:mo>−</c:mo></c:msup><c:msup><c:mi>π</c:mi><c:mn>0</c:mn></c:msup></c:math>, <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msubsup><e:mi>K</e:mi><e:mi>S</e:mi><e:mn>0</e:mn></e:msubsup><e:msubsup><e:mi>K</e:mi><e:mi>L</e:mi><e:mn>0</e:mn></e:msubsup><e:msup><e:mi>π</e:mi><e:mn>0</e:mn></e:msup></e:math>, and <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:msubsup><g:mi>K</g:mi><g:mi>S</g:mi><g:mn>0</g:mn></g:msubsup><g:msup><g:mi>K</g:mi><g:mo>±</g:mo></g:msup><g:msup><g:mi>π</g:mi><g:mo>∓</g:mo></g:msup></g:math> is carried out within the framework of resonance chiral theory. The amplitudes are fixed by fitting to the experimental cross section and invariant mass spectrum. With these amplitudes, one can calculate the hadronic vacuum polarization form factors of these processes. The leading order contributions of <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mrow><i:mi>σ</i:mi><i:mo stretchy=\"false\">(</i:mo><i:msup><i:mrow><i:mi>e</i:mi></i:mrow><i:mrow><i:mo>+</i:mo></i:mrow></i:msup><i:msup><i:mrow><i:mi>e</i:mi></i:mrow><i:mrow><i:mo>−</i:mo></i:mrow></i:msup><i:mo stretchy=\"false\">→</i:mo><i:mi>K</i:mi><i:mover accent=\"true\"><i:mrow><i:mi>K</i:mi></i:mrow><i:mrow><i:mo stretchy=\"false\">¯</i:mo></i:mrow></i:mover><i:mi>π</i:mi><i:mo stretchy=\"false\">)</i:mo></i:mrow></i:math> to the anomalous magnetic moment of the muon, <p:math xmlns:p=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><p:mrow><p:mo stretchy=\"false\">(</p:mo><p:mi>g</p:mi><p:mo>−</p:mo><p:mn>2</p:mn><p:msub><p:mrow><p:mo stretchy=\"false\">)</p:mo></p:mrow><p:mrow><p:mi>μ</p:mi></p:mrow></p:msub></p:mrow></p:math>, is obtained as <t:math xmlns:t=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><t:mrow><t:msubsup><t:mrow><t:mi>a</t:mi></t:mrow><t:mrow><t:mi>μ</t:mi></t:mrow><t:mrow><t:mi>HVP</t:mi><t:mo>,</t:mo><t:mi>LO</t:mi></t:mrow></t:msubsup><t:mo stretchy=\"false\">(</t:mo><t:msup><t:mrow><t:mi>e</t:mi></t:mrow><t:mrow><t:mo>+</t:mo></t:mrow></t:msup><t:msup><t:mrow><t:mi>e</t:mi></t:mrow><t:mrow><t:mo>−</t:mo></t:mrow></t:msup><t:mo stretchy=\"false\">→</t:mo><t:mi>K</t:mi><t:mover accent=\"true\"><t:mrow><t:mi>K</t:mi></t:mrow><t:mrow><t:mo stretchy=\"false\">¯</t:mo></t:mrow></t:mover><t:mi>π</t:mi><t:mo stretchy=\"false\">)</t:mo><t:mo>=</t:mo><t:mo stretchy=\"false\">(</t:mo><t:mn>3.178</t:mn><t:mo>±</t:mo><t:mn>0.071</t:mn><t:mo stretchy=\"false\">)</t:mo><t:mo>×</t:mo><t:msup><t:mrow><t:mn>10</t:mn></t:mrow><t:mrow><t:mo>−</t:mo><t:mn>10</t:mn></t:mrow></t:msup></t:mrow></t:math> up to <cb:math xmlns:cb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><cb:msub><cb:mi>E</cb:mi><cb:mi>cm</cb:mi></cb:msub><cb:mo>=</cb:mo><cb:mn>2.3</cb:mn><cb","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"49 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143443179","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":"Absorptive effects in black hole scattering","authors":"Yilber Fabian Bautista, Yu-Tin Huang, Jung-Wook Kim","doi":"10.1103/physrevd.111.044043","DOIUrl":"https://doi.org/10.1103/physrevd.111.044043","url":null,"abstract":"In this paper, we define absorptive Compton amplitudes, which capture the absorption factor for waves of spin-weight-s</a:mi></a:math> scattering in black hole perturbation theory. At the leading order, in the <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>G</c:mi><c:mi>M</c:mi><c:mi>ω</c:mi></c:math> expansion, such amplitudes are purely imaginary and expressible as contact terms. Equipped with these amplitudes we compute the mass change in black hole scattering events via the Kosower-Maybee-O’Connell formalism, where the rest mass of a Schwarzschild/Kerr black hole is modified due to absorption of gravitational, electromagnetic, or scalar fields sourced by other compact object. We reproduced the power loss previously computed in the post-Newtonian expansion. The results presented here hold for similar mass ratios and generic spin orientation, while keeping the Kerr spin parameter to lie in the physical region <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mi>χ</e:mi><e:mo>≤</e:mo><e:mn>1</e:mn></e: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":"9 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417292","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":"Holographic analysis of the pion","authors":"Jeffrey Forshaw, Ruben Sandapen","doi":"10.1103/physrevd.111.034024","DOIUrl":"https://doi.org/10.1103/physrevd.111.034024","url":null,"abstract":"Inspired by light-front holography, we compute the pion mass, charge radius, decay constant, electromagnetic form factor and electromagnetic transition form factor. To do so, we model the longitudinal quark dynamics using potentials due to ’t Hooft and to Li and Vary. We find a longitudinal wave function that is rather more peaked about x</a:mi>∼</a:mo>1</a:mn>/</a:mo>2</a:mn></a:mrow></a:math> than in previous studies. We also explore the strong degeneracy between these two potentials and conclude by noting that one scenario that accords well with the data also maps onto an equation previously noted by Vegh that describes the dynamics of a four-segmented string in three-dimensional anti–de Sitter spacetime. <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":"39 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417294","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":"Top quark electroweak dipole moment at a high energy muon collider","authors":"Tao Han, Da Liu, Si Wang","doi":"10.1103/physrevd.111.035015","DOIUrl":"https://doi.org/10.1103/physrevd.111.035015","url":null,"abstract":"We study the sensitivity reach to probe the electroweak dipole operators associated with a top quark at a multi-TeV lepton collider. Studying the electroweak dipole operators is strongly motivated by precision physics. The operators exhibit unique chiral structure and can be enhanced with respect to others in theories beyond the Standard Model. We illustrate this point in a strongly coupled composite Higgs model. We find that a high energy μ</a:mi>+</a:mo></a:msup>μ</a:mi>−</a:mo></a:msup></a:math> collider may offer a unique opportunity to probe the electroweak dipole operators beyond the coverage by the LHC and future hadron colliders. The significant sensitivity is achieved by the leading channel <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msup><c:mi>μ</c:mi><c:mo>+</c:mo></c:msup><c:msup><c:mi>μ</c:mi><c:mo>−</c:mo></c:msup><c:mo stretchy=\"false\">→</c:mo><c:mi>t</c:mi><c:mover accent=\"true\"><c:mi>t</c:mi><c:mo stretchy=\"false\">¯</c:mo></c:mover></c:math> near the threshold, and substantially improved by the novel channel <h:math xmlns:h=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><h:msup><h:mi>μ</h:mi><h:mo>+</h:mo></h:msup><h:msup><h:mi>μ</h:mi><h:mo>−</h:mo></h:msup><h:mo stretchy=\"false\">→</h:mo><h:mi>t</h:mi><h:mover accent=\"true\"><h:mi>t</h:mi><h:mo stretchy=\"false\">¯</h:mo></h:mover><h:mi>h</h:mi></h:math> at high energies. We may be able to reach a new physics scale well above the collider energy for moderate couplings of the Wilson coefficients. Our main conclusions are applicable to future <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:msup><m:mi>e</m:mi><m:mo>+</m:mo></m:msup><m:msup><m:mi>e</m:mi><m:mo>−</m:mo></m:msup></m:math> colliders. <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":"61 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417293","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":"Revisiting constraints on proton PDFs from HERA DIS, Drell-Yan, W and Z boson production, and projected EIC measurements","authors":"Majid Azizi, Maryam Soleymaninia, Hadi Hashamipour, Maral Salajegheh, Hamzeh Khanpour, Ulf-G. Meißner","doi":"10.1103/physrevd.111.034023","DOIUrl":"https://doi.org/10.1103/physrevd.111.034023","url":null,"abstract":"We present new parton distribution functions (PDFs) at next-to-leading order and next-to-next-to-leading order in perturbative QCD, derived from a comprehensive QCD analysis of high-precision datasets from combined HERA deep-inelastic scattering, the Tevatron, and the LHC. To improve constraints on quark flavor separation, we incorporate Drell-Yan pair production data, which provides critical sensitivity to the quark distributions. In addition, we include the latest W</a:mi></a:math> and <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>Z</c:mi></c:math> boson production data from the CDF, D0, ATLAS, and CMS collaborations, further refining both quark and gluon distributions. Our nominal QCD fit integrates these datasets and examines the resulting impact on the PDFs and their associated uncertainties. Uncertainties in the PDFs are quantified using the Hessian method, ensuring robust error estimates. Furthermore, we explore the sensitivity of the strong coupling constant, <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msub><e:mi>α</e:mi><e:mi>s</e:mi></e:msub><e:mo stretchy=\"false\">(</e:mo><e:msubsup><e:mi>M</e:mi><e:mi>Z</e:mi><e:mn>2</e:mn></e:msubsup><e:mo stretchy=\"false\">)</e:mo></e:math>, and proton PDFs in light of the projected measurements from the Electron-Ion Collider, where improvements in precision are expected. The analysis also investigates the effects of inclusive jet and dijet production data, which provide enhanced constraints on the gluon PDF and <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:msub><i:mi>α</i:mi><i:mi>s</i:mi></i:msub><i:mo stretchy=\"false\">(</i:mo><i:msubsup><i:mi>M</i:mi><i:mi>Z</i:mi><i:mn>2</i:mn></i:msubsup><i:mo stretchy=\"false\">)</i:mo></i: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":"51 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417295","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":"Small- x evolution of the dipole amplitude in momentum space: Forward-off-forward correspondence","authors":"Sanskriti Agrawal, Raktim Abir","doi":"10.1103/physrevd.111.034022","DOIUrl":"https://doi.org/10.1103/physrevd.111.034022","url":null,"abstract":"We have shown that the small-x</a:mi></a:math> evolution of the leading-log dipole scattering amplitudes, both pomeron and odderon, in the momentum space can be completely determined by the evolution of the respective amplitudes, with rescaled momenta. In position space, if there is translation symmetry (assumption of a large nucleus), the dipole cross section depends on the positions of quarks and antiquarks only through their separation. The present study is an equivalent proposition in the momentum space—where translation symmetry in momentum bifurcates the amplitudes into two translationally symmetric functions along the <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi mathvariant=\"bold-italic\">k</c:mi></c:math> line in the <f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mi mathvariant=\"bold-italic\">k</f:mi><f:mo>−</f:mo><f:mi mathvariant=\"bold\">Δ</f:mi></f:math> plane. It also shows that high energy evolutions of dipole generalized transverse momentum-dependent distributions can be achieved only by studying the evolution of dipole transverse momentum-dependent distributions at small-<j:math xmlns:j=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><j:mi>x</j:mi></j: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":"16 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417330","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":"Cold quark matter: Renormalization group improvement at next-to-next-to leading order","authors":"Loïc Fernandez, Jean-Loïc Kneur","doi":"10.1103/physrevd.111.034020","DOIUrl":"https://doi.org/10.1103/physrevd.111.034020","url":null,"abstract":"We extend previous next-to-next-to leading order (NNLO) calculations of the quantum chromodynamics (QCD) pressure at zero temperature and nonzero baryonic densities using the renormalization group optimized perturbation theory (RGOPT), which entails an all-order RG-invariant resummation. First, we consider the approximation of three massless quark flavors, and then we add the running strange quark mass dependence. The resulting pressure displays a sizeably reduced sensitivity to variations of the arbitrary renormalization scale as compared to the state-of-the-art NNLO results. This confirms previous NLO investigations that the RGOPT resummation scheme provides improved convergence properties and reduced renormalization scale uncertainties, thus being a promising prescription to improve perturbative QCD at high and mid range baryonic densities. <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":"157 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417331","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":"High-frequency gravitational waves detection with the BabyIAXO haloscopes","authors":"José Reina-Valero, Jose R. Navarro-Madrid, Diego Blas, Alejandro Díaz-Morcillo, Igor García Irastorza, Benito Gimeno, Juan Monzó-Cabrera","doi":"10.1103/physrevd.111.043024","DOIUrl":"https://doi.org/10.1103/physrevd.111.043024","url":null,"abstract":"We present the first analysis using RADES-BabyIAXO cavities as detectors of high-frequency gravitational waves (HFGWs). In particular, we discuss two configurations for distinct frequency ranges of HFGWs: cavity 1, mostly sensitive at a frequency range of 252.8–333.2 MHz, and cavity 2, at 2.504–3.402 GHz, which is a scaled down version of cavity 1. We find that cavity 1 will reach sensitivity to strains of the HFGWs of order h</a:mi></a:mrow>1</a:mn></a:mrow></a:msub>∼</a:mo>10</a:mn></a:mrow>−</a:mo>21</a:mn></a:mrow></a:msup></a:mrow></a:math>, while cavity 2 will reach <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msub><c:mi>h</c:mi><c:mn>2</c:mn></c:msub><c:mo>∼</c:mo><c:msup><c:mn>10</c:mn><c:mrow><c:mo>−</c:mo><c:mn>20</c:mn></c:mrow></c:msup></c:math>. These represent the best estimations of the RADES-BabyIAXO cavities as HFGW detectors, showing how this setup can produce groundbreaking results in axion physics and HFGWs simultaneously. <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":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417327","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":"Beyond Hawking evaporation of black holes formed by dark matter in compact stars","authors":"Ujjwal Basumatary, Nirmal Raj, Anupam Ray","doi":"10.1103/physrevd.111.l041306","DOIUrl":"https://doi.org/10.1103/physrevd.111.l041306","url":null,"abstract":"The memory burden effect is an explicit resolution to the information paradox by which an evaporating black hole acquires quantum hair, which then suppresses its rate of mass loss with respect to the semiclassical Hawking rate. We show that this has significant implications for particle dark matter that captures in neutron stars and forms black holes that go on to consume the host star. In particular, we show that constraints on the nucleon scattering cross section and mass of spin-0 and spin-1</a:mn>/</a:mo>2</a:mn></a:mrow></a:math> dark matter would be extended by several orders of magnitude. <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":"42 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417328","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":"Production potential of hidden-strange molecular pentaquarks through the π−p→K*Σ process","authors":"Xiao-Yun Wang, Yuan Gao, Xiang Liu","doi":"10.1103/physrevd.111.034021","DOIUrl":"https://doi.org/10.1103/physrevd.111.034021","url":null,"abstract":"In this study, applying the effective Lagrangian approach, we investigate the reaction π&lt;/a:mi&gt;&lt;/a:mrow&gt;−&lt;/a:mo&gt;&lt;/a:mrow&gt;&lt;/a:msup&gt;p&lt;/a:mi&gt;→&lt;/a:mo&gt;K&lt;/a:mi&gt;&lt;/a:mrow&gt;*&lt;/a:mo&gt;&lt;/a:mrow&gt;&lt;/a:msup&gt;Σ&lt;/a:mi&gt;&lt;/a:mrow&gt;&lt;/a:math&gt; to explore the production of the hidden-strange molecular pentaquarks &lt;e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;e:msub&gt;&lt;e:mi&gt;P&lt;/e:mi&gt;&lt;e:mrow&gt;&lt;e:mi&gt;s&lt;/e:mi&gt;&lt;e:mover accent=\"true\"&gt;&lt;e:mi&gt;s&lt;/e:mi&gt;&lt;e:mo stretchy=\"false\"&gt;¯&lt;/e:mo&gt;&lt;/e:mover&gt;&lt;/e:mrow&gt;&lt;/e:msub&gt;&lt;/e:math&gt;. Specifically, we analyze two scenarios, where the &lt;i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;i:msup&gt;&lt;i:mi&gt;J&lt;/i:mi&gt;&lt;i:mi&gt;P&lt;/i:mi&gt;&lt;/i:msup&gt;&lt;/i:math&gt; quantum numbers of &lt;k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;k:mrow&gt;&lt;k:msub&gt;&lt;k:mrow&gt;&lt;k:mi&gt;P&lt;/k:mi&gt;&lt;/k:mrow&gt;&lt;k:mrow&gt;&lt;k:mi&gt;s&lt;/k:mi&gt;&lt;k:mover accent=\"true\"&gt;&lt;k:mrow&gt;&lt;k:mi&gt;s&lt;/k:mi&gt;&lt;/k:mrow&gt;&lt;k:mrow&gt;&lt;k:mo stretchy=\"false\"&gt;¯&lt;/k:mo&gt;&lt;/k:mrow&gt;&lt;/k:mover&gt;&lt;/k:mrow&gt;&lt;/k:msub&gt;&lt;/k:mrow&gt;&lt;/k:math&gt; are &lt;o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;o:mn&gt;3&lt;/o:mn&gt;&lt;o:mo&gt;/&lt;/o:mo&gt;&lt;o:msup&gt;&lt;o:mn&gt;2&lt;/o:mn&gt;&lt;o:mo&gt;−&lt;/o:mo&gt;&lt;/o:msup&gt;&lt;/o:math&gt; and &lt;q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;q:mn&gt;1&lt;/q:mn&gt;&lt;q:mo&gt;/&lt;/q:mo&gt;&lt;q:msup&gt;&lt;q:mn&gt;2&lt;/q:mn&gt;&lt;q:mo&gt;−&lt;/q:mo&gt;&lt;/q:msup&gt;&lt;/q:math&gt;. Our results show that the contribution from &lt;s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;s:mi&gt;s&lt;/s:mi&gt;&lt;/s:math&gt;-channel &lt;u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;u:msub&gt;&lt;u:mi&gt;P&lt;/u:mi&gt;&lt;u:mrow&gt;&lt;u:mi&gt;s&lt;/u:mi&gt;&lt;u:mover accent=\"true\"&gt;&lt;u:mi&gt;s&lt;/u:mi&gt;&lt;u:mo stretchy=\"false\"&gt;¯&lt;/u:mo&gt;&lt;/u:mover&gt;&lt;/u:mrow&gt;&lt;/u:msub&gt;&lt;/u:math&gt; exchange dominates the total cross section, surpassing those from &lt;y:math xmlns:y=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;y:mi&gt;t&lt;/y:mi&gt;&lt;/y:math&gt;-channel K&lt;/ab:mi&gt;(&lt;/ab:mo&gt;*&lt;/ab:mo&gt;)&lt;/ab:mo&gt;&lt;/ab:mrow&gt;&lt;/ab:msup&gt;&lt;/ab:math&gt; exchange and &lt;eb:math xmlns:eb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;eb:mi&gt;u&lt;/eb:mi&gt;&lt;/eb:math&gt;-channel &lt;gb:math xmlns:gb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;gb:mi mathvariant=\"normal\"&gt;Σ&lt;/gb:mi&gt;&lt;/gb:math&gt; exchange. Additionally, we present predictions for the differential cross section of the &lt;jb:math xmlns:jb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;jb:mrow&gt;&lt;jb:msup&gt;&lt;jb:mrow&gt;&lt;jb:mi&gt;π&lt;/jb:mi&gt;&lt;/jb:mrow&gt;&lt;jb:mrow&gt;&lt;jb:mo&gt;−&lt;/jb:mo&gt;&lt;/jb:mrow&gt;&lt;/jb:msup&gt;&lt;jb:mi&gt;p&lt;/jb:mi&gt;&lt;jb:mo stretchy=\"false\"&gt;→&lt;/jb:mo&gt;&lt;jb:msup&gt;&lt;jb:mrow&gt;&lt;jb:mi&gt;K&lt;/jb:mi&gt;&lt;/jb:mrow&gt;&lt;jb:mrow&gt;&lt;jb:mo&gt;*&lt;/jb:mo&gt;&lt;/jb:mrow&gt;&lt;/jb:msup&gt;&lt;jb:mi mathvariant=\"normal\"&gt;Σ&lt;/jb:mi&gt;&lt;/jb:mrow&gt;&lt;/jb:math&gt; process. Finally, we extend the 2-to-2 scattering process to the 2-to-3 Dalitz process and provide theoretical predictions for this scenario. Our findings suggest that the cross section for the &lt;nb:math xmlns:nb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;nb:mrow&gt;&lt;nb:msup&gt;&lt;nb:mrow&gt;&lt;nb:mi&gt;π&lt;/nb:mi&gt;&lt;/nb:mrow&gt;&lt;nb:mrow&gt;&lt;nb:mo&gt;−&lt;/nb:mo&gt;&lt;/nb:mrow&gt;&lt;/nb:msup&gt;&lt;nb:mi&gt;p&lt;/nb:mi&gt;&lt;nb:mo stretchy=\"fal","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"61 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143417329","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}