{"title":"Entropy from scattering in weakly interacting systems","authors":"Duncan MacIntyre, Gordon W. Semenoff","doi":"10.1103/s2rk-dswg","DOIUrl":"https://doi.org/10.1103/s2rk-dswg","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"25 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288742","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":"Pentaquarks made of light quarks and their admixture to baryons","authors":"Nicholas Miesch, Edward Shuryak, Ismail Zahed","doi":"10.1103/vdp9-mmbj","DOIUrl":"https://doi.org/10.1103/vdp9-mmbj","url":null,"abstract":"This paper is a continuation of our studies of multiquark hadrons. The antisymmetrization of their wave functions required by Fermi statistics is nontrivial, as it mixes orbital, color, spin, and flavor structures. In our previous papers we developed a method to find them based on the representations of the permutation group, and derived the explicit wave functions for baryons excited to the first and second shells (L</a:mi>=</a:mo>1</a:mn></a:mrow></a:math>, 2), tetraquarks <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>q</c:mi><c:mi>q</c:mi><c:mover accent=\"true\"><c:mi>q</c:mi><c:mo stretchy=\"false\">¯</c:mo></c:mover><c:mover accent=\"true\"><c:mi>q</c:mi><c:mo stretchy=\"false\">¯</c:mo></c:mover></c:math> and hexaquarks (<i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mn>6</i:mn><i:mi>q</i:mi></i:math>). Now we apply it to light pentaquarks (<k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>q</k:mi><k:mi>q</k:mi><k:mi>q</k:mi><k:mi>q</k:mi><k:mover accent=\"true\"><k:mi>q</k:mi><k:mo stretchy=\"false\">¯</k:mo></k:mover></k:math>), in the S- and P-shells (<o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:mi>L</o:mi><o:mo>=</o:mo><o:mn>0</o:mn></o:math>, 1). Using Jacobi coordinates, one can use the hyperdistance approximation in 12-dimensional space. We further address the issue of “unquenching” of baryons, by considering their mixing with pentaquarks, via two channels, through the addition of <q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><q:mi>σ</q:mi></q:math>-like or <s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><s:mi>π</s:mi></s:math>-like <u:math xmlns:u=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><u:mover accent=\"true\"><u:mi>q</u:mi><u:mo stretchy=\"false\">¯</u:mo></u:mover><u:mi>q</u:mi></u:math> pairs. This mixing is central for understanding of the observed flavor asymmetry of the antiquark sea, the amount of orbital motion issue as well as other nucleon properties.","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"15 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145295183","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":"Kaon gluon parton distribution and momentum fraction from 2+1+1 lattice QCD with high statistics","authors":"Alex NieMiera, William Good, Huey-Wen Lin","doi":"10.1103/89mq-gx33","DOIUrl":"https://doi.org/10.1103/89mq-gx33","url":null,"abstract":"We present a high-statistics lattice-QCD determination of the kaon gluon parton distribution function and gluon momentum fraction. We use clover valence fermion action to take 1,296,640 kaon-correlator measurements on a highly improved staggered quark ensemble with a</a:mi>≈</a:mo>0.12</a:mn></a:mtext></a:mtext>fm</a:mi></a:math> and 310-MeV pion mass generated by the MILC Collaboration. A detailed investigation into the impact of gauge-link smearing on the gluonic matrix elements indicates that five steps of hypercubic smearing offer an effective balance between signal quality and preservation of long-distance physics. We report a nonperturbatively renormalized kaon gluon momentum fraction of <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mo stretchy=\"false\">⟨</c:mo><c:mi>x</c:mi><c:msubsup><c:mo stretchy=\"false\">⟩</c:mo><c:mi>g</c:mi><c:mrow><c:mover accent=\"true\"><c:mi>MS</c:mi><c:mo stretchy=\"true\">¯</c:mo></c:mover><c:mo>,</c:mo><c:mi>K</c:mi></c:mrow></c:msubsup><c:mo>=</c:mo><c:mn>0.557</c:mn><c:mo stretchy=\"false\">(</c:mo><c:mn>18</c:mn><c:msub><c:mo stretchy=\"false\">)</c:mo><c:mrow><c:mi>stat</c:mi></c:mrow></c:msub><c:mo stretchy=\"false\">(</c:mo><c:mn>24</c:mn><c:msub><c:mo stretchy=\"false\">)</c:mo><c:mi>NPR</c:mi></c:msub><c:mo stretchy=\"false\">(</c:mo><c:mn>56</c:mn><c:msub><c:mo stretchy=\"false\">)</c:mo><c:mi>mixing</c:mi></c:msub></c:math> at <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:mi>μ</o:mi><o:mo>=</o:mo><o:mn>2</o:mn><o:mtext> </o:mtext><o:mtext> </o:mtext><o:mi>GeV</o:mi></o:math> in the <q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><q:mover accent=\"true\"><q:mi>MS</q:mi><q:mo stretchy=\"true\">¯</q:mo></q:mover></q:math> scheme. Using reduced pseudo-Ioffe-time-distribution matrix elements and pseudo-parton-distribution-function (PDF) matching, we extract the kaon gluon PDF and compare with the prediction from the Dyson-Schwinger equation and with the pion PDF obtained from the same ensemble.","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"1 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288842","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":"Quark structure of the nucleon and moat regimes in nuclear matter","authors":"Theo F. Motta, Gastão Krein","doi":"10.1103/2br3-9p6r","DOIUrl":"https://doi.org/10.1103/2br3-9p6r","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"27 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288801","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":"Probing evolution in the black hole spectrum with gravitational waves catalogs","authors":"Jam Sadiq, Thomas Dent, Ana Lorenzo-Medina","doi":"10.1103/j9fq-nkl3","DOIUrl":"https://doi.org/10.1103/j9fq-nkl3","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"26 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288813","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":"Notes on conformal integrals: Coulomb branch amplitudes, magic identities, and bootstrap","authors":"Song He, Xuhang Jiang, Jiahao Liu, Yao-Qi Zhang","doi":"10.1103/gmp7-r9dz","DOIUrl":"https://doi.org/10.1103/gmp7-r9dz","url":null,"abstract":"We study multiloop conformal integrals for four-point correlators of planar N</a:mi>=</a:mo>4</a:mn></a:math> super-Yang-Mills theory, and in particular those contributing to Coulomb branch amplitudes in the ten-dimensional lightlike limit, where linear combinations of such integrals are determined by the large R-charge octagons exactly known from integrability. Exploiting known results for integrands, we review those combinations of dual conformal invariant (DCI) integrals that must evaluate to determinants of ladders, generalizing the simplest cases of Basso-Dixon fishnet integrals; in this way, we summarize all-loop predictions for the integrands (which are extracted from <d:math xmlns:d=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><d:mi>f</d:mi></d:math>-graphs) contributing to components of Coulomb branch amplitudes, such as next-to-fishnet integrals. Moreover, this exercise produces new “magic identities,” i.e., certain combinations of DCI integrals equal zero, and we enumerate and simplify such identities up to six loops explicitly. On the other hand, most of these individual integrals have not been computed beyond three loops, and as a first step we consider a bootstrap program for DCI integrals based on their leading singularities and the space of pure functions. We bootstrap the 3 nontrivial DCI integrals for four-loop Coulomb branch amplitudes (providing an independent verification of the four-loop magic identity), which all take remarkably simple form as weight-8 single-valued harmonic polylogarithms. We also compute all leading singularities and a large portion of the pure functions for the 34 DCI integrals contributing to five-loop amplitudes, where not only some integrals evaluate to functions beyond harmonic polylogarithms, but they also contain lower-weight pieces individually.","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"1 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288796","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":"Black hole entropy bounded by the specific heat","authors":"Kai-Peng Lu, H. Lü","doi":"10.1103/3hqz-45z5","DOIUrl":"https://doi.org/10.1103/3hqz-45z5","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"54 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288791","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}
Keisuke Inomata, Marc Kamionkowski, Kentaro Kasai, Bibhushan Shakya
{"title":"Gravitational waves from particles produced from bubble collisions in first-order phase transitions","authors":"Keisuke Inomata, Marc Kamionkowski, Kentaro Kasai, Bibhushan Shakya","doi":"10.1103/k4s5-8zqy","DOIUrl":"https://doi.org/10.1103/k4s5-8zqy","url":null,"abstract":"","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"85 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145288805","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}