Physical Review D最新文献

{"title":"Anisotropic photon and dilepton yield in a thermalized quark-gluon plasma under spatial magnetic fluctuations","authors":"Jorge David Castaño-Yepes, Enrique Muñoz","doi":"10.1103/physrevd.111.076028","DOIUrl":"https://doi.org/10.1103/physrevd.111.076028","url":null,"abstract":"In this article, we analyze the effects of stochastic spatial magnetic fluctuations with respect to an intense uniform average magnetic field background over the yields for photon and dilepton emission processes in a thermalized quark-gluon plasma phase. Such stochastic fluctuations model the effects of nearly random initial conditions for the nuclei participating in noncentral heavy-ion collisions, which are the sources of the background magnetic field. Our theoretical results predict significant anisotropic effects due to stochastic magnetic noise over the angular distribution for photon and dilepton production rates in this scenario. <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":"47 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884784","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":"C-parity, magnetic monopoles, and higher frequency gravitational waves","authors":"Rinku Maji, Qaisar Shafi","doi":"10.1103/physrevd.111.075027","DOIUrl":"https://doi.org/10.1103/physrevd.111.075027","url":null,"abstract":"We consider the spontaneous breaking of S&lt;/a:mi&gt;O&lt;/a:mi&gt;(&lt;/a:mo&gt;10&lt;/a:mn&gt;)&lt;/a:mo&gt;&lt;/a:math&gt; grand unified symmetry to the left-right symmetric model &lt;e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;e:mi&gt;S&lt;/e:mi&gt;&lt;e:mi&gt;U&lt;/e:mi&gt;&lt;e:mo stretchy=\"false\"&gt;(&lt;/e:mo&gt;&lt;e:mn&gt;3&lt;/e:mn&gt;&lt;e:msub&gt;&lt;e:mo stretchy=\"false\"&gt;)&lt;/e:mo&gt;&lt;e:mi&gt;c&lt;/e:mi&gt;&lt;/e:msub&gt;&lt;e:mo&gt;×&lt;/e:mo&gt;&lt;e:mi&gt;S&lt;/e:mi&gt;&lt;e:mi&gt;U&lt;/e:mi&gt;&lt;e:mo stretchy=\"false\"&gt;(&lt;/e:mo&gt;&lt;e:mn&gt;3&lt;/e:mn&gt;&lt;e:msub&gt;&lt;e:mo stretchy=\"false\"&gt;)&lt;/e:mo&gt;&lt;e:mi&gt;L&lt;/e:mi&gt;&lt;/e:msub&gt;&lt;e:mo&gt;×&lt;/e:mo&gt;&lt;e:mi&gt;S&lt;/e:mi&gt;&lt;e:mi&gt;U&lt;/e:mi&gt;&lt;e:mo stretchy=\"false\"&gt;(&lt;/e:mo&gt;&lt;e:mn&gt;2&lt;/e:mn&gt;&lt;e:msub&gt;&lt;e:mo stretchy=\"false\"&gt;)&lt;/e:mo&gt;&lt;e:mi&gt;R&lt;/e:mi&gt;&lt;/e:msub&gt;&lt;e:mo&gt;×&lt;/e:mo&gt;&lt;e:mi&gt;U&lt;/e:mi&gt;&lt;e:mo stretchy=\"false\"&gt;(&lt;/e:mo&gt;&lt;e:mn&gt;1&lt;/e:mn&gt;&lt;e:msub&gt;&lt;e:mo stretchy=\"false\"&gt;)&lt;/e:mo&gt;&lt;e:mrow&gt;&lt;e:mi&gt;B&lt;/e:mi&gt;&lt;e:mo&gt;−&lt;/e:mo&gt;&lt;e:mi&gt;L&lt;/e:mi&gt;&lt;/e:mrow&gt;&lt;/e:msub&gt;&lt;/e:math&gt; with C-parity also unbroken [&lt;o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;o:mi&gt;C&lt;/o:mi&gt;&lt;/o:math&gt; converts &lt;q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;q:mi&gt;Q&lt;/q:mi&gt;&lt;q:mo stretchy=\"false\"&gt;→&lt;/q:mo&gt;&lt;q:mo&gt;−&lt;/q:mo&gt;&lt;q:mi&gt;Q&lt;/q:mi&gt;&lt;/q:math&gt;, where &lt;t:math xmlns:t=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;t:mi&gt;Q&lt;/t:mi&gt;&lt;/t:math&gt; is the electric charge operator in &lt;v:math xmlns:v=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;v:mi&gt;S&lt;/v:mi&gt;&lt;v:mi&gt;O&lt;/v:mi&gt;&lt;v:mo stretchy=\"false\"&gt;(&lt;/v:mo&gt;&lt;v:mn&gt;10&lt;/v:mn&gt;&lt;v:mo stretchy=\"false\"&gt;)&lt;/v:mo&gt;&lt;/v:math&gt;.] This breaking produces the topologically stable grand unified theory (GUT) monopole as well as a GUT scale C-string. The subsequent breaking at an intermediate scale of C-parity produces domain walls bounded by C-strings, found by Kibble A limited number of inflationary &lt;z:math xmlns:z=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;z:mi&gt;e&lt;/z:mi&gt;&lt;/z:math&gt;-foldings experienced during these breakings can yield an observable number density of primordial GUT monopoles. The C-strings also experience this inflationary phase, and the subsequent string-wall network decays through the emission of gravitational waves. We estimate the gravitational wave spectrum from these composite structures over a range of values of the domain wall tension &lt;bb:math xmlns:bb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;bb:mi&gt;σ&lt;/bb:mi&gt;&lt;/bb:math&gt;. Depending on &lt;db:math xmlns:db=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;db:mi&gt;σ&lt;/db:mi&gt;&lt;/db:math&gt; the spectrum displays a peak in the higher frequency range between &lt;fb:math xmlns:fb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;fb:msup&gt;&lt;fb:mn&gt;10&lt;/fb:mn&gt;&lt;fb:mn&gt;2&lt;/fb:mn&gt;&lt;/fb:msup&gt;&lt;/fb:math&gt; and &lt;hb:math xmlns:hb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;hb:mrow&gt;&lt;hb:msup&gt;&lt;hb:mn&gt;10&lt;/hb:mn&gt;&lt;hb:mn&gt;5&lt;/hb:mn&gt;&lt;/hb:msup&gt;&lt;hb:mtext&gt; &lt;/hb:mtext&gt;&lt;hb:mtext&gt; &lt;/hb:mtext&gt;&lt;hb:mi&gt;Hz&lt;/hb:mi&gt;&lt;/hb:mrow&gt;&lt;/hb:math&gt;. &lt;jats:supplementary-material&gt; &lt;jats:copyright-statement&gt;Published by the American Physical Society&lt;/jats:copyright-statement&gt; &lt;jats:copyright-year&gt;2025&lt;/jats:copyright-","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"37 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884781","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":"Instability in N=4 supersymmetric Yang-Mills theory at finite density","authors":"Liam Gladden, Victor Ivo, Pavel Kovtun, Andrei O. Starinets","doi":"10.1103/physrevd.111.086030","DOIUrl":"https://doi.org/10.1103/physrevd.111.086030","url":null,"abstract":"Equilibrium states of N</a:mi>=</a:mo>4</a:mn></a:math> supersymmetric Yang-Mills theory can be characterized by the temperature and three chemical potentials, corresponding to the <d:math xmlns:d=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><d:mrow><d:mi mathvariant=\"normal\">U</d:mi><d:mo stretchy=\"false\">(</d:mo><d:mn>1</d:mn><d:msup><d:mrow><d:mo stretchy=\"false\">)</d:mo></d:mrow><d:mrow><d:mn>3</d:mn></d:mrow></d:msup></d:mrow></d:math> subgroup of the <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:mi>R</i:mi></i:math>-symmetry group. We investigate the phase diagram of the theory at strong coupling in the grand canonical ensemble in flat space, using its holographic description via the five-dimensional supergravity solution of Behrndt The bulk action includes the metric, three Abelian gauge fields, and two neutral scalar fields. The equilibrium state described by the charged black brane is always thermodynamically unstable at low temperature. Relativistic hydrodynamics with multiple conserved charges predicts that thermodynamic instability is accompanied by a dynamical instability, with the eigenvalues and eigenvectors of the corresponding Hessian playing a key role in identifying the unstable modes. We explicitly demonstrate this for three equal chemical potentials, finding unstable quasinormal modes that describe <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>R</k:mi></k:math>-charge diffusion. Consequently, the low-temperature phase of <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi mathvariant=\"script\">N</m:mi><m:mo>=</m:mo><m:mn>4</m:mn></m:math> supersymmetric Yang-Mills theory with equal chemical potentials is not described by the AdS-Reissner-Nordström black brane. <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":"8 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884780","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":"Five dimensional Weyl double copy","authors":"Weicheng Zhao, Pu-Jian Mao, Jun-Bao Wu","doi":"10.1103/physrevd.111.l081902","DOIUrl":"https://doi.org/10.1103/physrevd.111.l081902","url":null,"abstract":"The Weyl double copy (WDC) relation connects the Weyl tensor of the gravity theory and the field strength tensor of the Maxwell theory, which provides a concrete realization of the classical double copy. Although intensively investigated, the WDC is only limited in four-dimensional spacetime. In this Letter, we generalize the WDC relation to five-dimensional spacetime, which offers the first example of the WDC in higher dimensions. We show that a special class of five-dimensional type N vacuum solutions admits a special class of degenerate Maxwell field that squares to give the Weyl tensor. The five-dimensional WDC relation defines a scalar field that satisfies the source-free Klein-Gordon equation on the curved background. We further verify that for five-dimensional pp-wave solution and Kundt solutions, the Maxwell fields and the scalar fields also satisfy the Maxwell’s equations and the wave equation on five-dimensional Minkowski 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":"271 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884911","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":"Exploring effective actions of type I and type IIA string theories through T-duality","authors":"Mohammad R. Garousi","doi":"10.1103/physrevd.111.086029","DOIUrl":"https://doi.org/10.1103/physrevd.111.086029","url":null,"abstract":"It is well-established that compactifying type I string theory on a circle S</a:mi>(</a:mo>1</a:mn>)</a:mo></a:mrow></a:msup></a:math> transforms the theory under T-duality into type I’ theory; the compactification of type IIA string theory on the orbifold <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msup><e:mover accent=\"true\"><e:mi>S</e:mi><e:mo stretchy=\"false\">˜</e:mo></e:mover><e:mrow><e:mo stretchy=\"false\">(</e:mo><e:mn>1</e:mn><e:mo stretchy=\"false\">)</e:mo></e:mrow></e:msup><e:mo>/</e:mo><e:msub><e:mi mathvariant=\"double-struck\">Z</e:mi><e:mn>2</e:mn></e:msub></e:math>, where the <l:math xmlns:l=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><l:msub><l:mi mathvariant=\"double-struck\">Z</l:mi><l:mn>2</l:mn></l:msub></l:math> action combines world sheet parity with spacetime reflection along the dual circle <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:msup><o:mover accent=\"true\"><o:mi>S</o:mi><o:mo stretchy=\"false\">˜</o:mo></o:mover><o:mrow><o:mo stretchy=\"false\">(</o:mo><o:mn>1</o:mn><o:mo stretchy=\"false\">)</o:mo></o:mrow></o:msup></o:math>. We propose that, upon compactification, the untwisted (twisted) sector of the type I effective action should map under the Buscher rules to the untwisted (twisted) sector of the type I’ effective action. This T-duality constraint offers significant insight into the determination of bosonic couplings in the effective action of type IIA theories, specifically those that remain after orbifold reduction, as well as in the untwisted sector of the type I effective action. However, its scope is limited and insufficient to fully determine the couplings within the twisted sectors of type I and type I’ theories. Within this framework, we demonstrate that the leading second-order derivative couplings in untwisted sector of type I and the second-order derivative couplings in type IIA theory are uniquely determined, except for the Chern-Simons term in type IIA, which is absent in the orbifold reduction. <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":"66 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884786","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":"Intrinsic charm and the D+−D− asymmetry produced in proton-proton collisions","authors":"G. I. Lykasov, M. N. Sorokovikov, S. J. Brodsky","doi":"10.1103/physrevd.111.074035","DOIUrl":"https://doi.org/10.1103/physrevd.111.074035","url":null,"abstract":"We investigate the contribution of the charm-anticharm (c</a:mi>c</a:mi>¯</a:mo></a:mover></a:math>) asymmetry of the proton eigenstate obtained from QCD lattice gauge to the asymmetry of <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:msup><e:mi>D</e:mi><e:mo>+</e:mo></e:msup><e:mo>,</e:mo><e:msup><e:mi>D</e:mi><e:mo>−</e:mo></e:msup></e:math> and <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:msup><g:mi>D</g:mi><g:mn>0</g:mn></g:msup><g:mo>,</g:mo><g:msup><g:mover accent=\"true\"><g:mi>D</g:mi><g:mo stretchy=\"false\">¯</g:mo></g:mover><g:mn>0</g:mn></g:msup></g:math> mesons produced in <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>p</k:mi><k:mi>p</k:mi></k:math> collisions at large Feynman variables <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>x</m:mi></m:math>. It is shown that an important tool for establishing the intrinsic charm (IC) content of the proton is the charm hadron-antihadron asymmetry formed in <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:mi>p</o:mi><o:mi>p</o:mi></o:math> collisions. Predictions for the asymmetry as a function of <q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><q:mi>x</q:mi></q:math> for different IC probabilities are presented. We show that the interference of the intrinsic <s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><s:mrow><s:mo stretchy=\"false\">|</s:mo><s:mi>u</s:mi><s:mi>u</s:mi><s:mi>d</s:mi><s:mi>c</s:mi><s:mover accent=\"true\"><s:mrow><s:mi>c</s:mi></s:mrow><s:mrow><s:mo stretchy=\"false\">¯</s:mo></s:mrow></s:mover><s:mo stretchy=\"false\">⟩</s:mo></s:mrow></s:math> Fock state with the standard contribution from the perturbative QCD evolution leads to a large <y:math xmlns:y=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><y:msup><y:mi>D</y:mi><y:mo>+</y:mo></y:msup><y:msup><y:mi>D</y:mi><y:mo>−</y:mo></y:msup></y:math> asymmetry at large Feynman x</ab:mi></ab: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":"96 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884912","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":"Fate of Σc , Ξc′ and Ωc baryons at high temperature with chiral-symmetry restoration","authors":"Daiki Suenaga, Makoto Oka","doi":"10.1103/physrevd.111.074032","DOIUrl":"https://doi.org/10.1103/physrevd.111.074032","url":null,"abstract":"Masses of the singly heavy baryons (SHBs), composed of a heavy quark and a light diquark, are studied from the viewpoints of heavy-quark spin symmetry (HQSS) and chiral-symmetry restoration at finite temperature. We consider the light diquarks with spin-parity J&lt;/a:mi&gt;P&lt;/a:mi&gt;&lt;/a:msup&gt;=&lt;/a:mo&gt;0&lt;/a:mn&gt;±&lt;/a:mo&gt;&lt;/a:msup&gt;&lt;/a:math&gt; and &lt;c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;c:msup&gt;&lt;c:mn&gt;1&lt;/c:mn&gt;&lt;c:mo&gt;±&lt;/c:mo&gt;&lt;/c:msup&gt;&lt;/c:math&gt;. Medium corrections to the SHBs are provided through the diquarks whereas the heavy quark is simply regarded as a spectator. The chiral dynamics of the diquark are described by the Nambu-Jona-Lasinio (NJL) model having (pseudo)scalar-type and (axial)vector-type four-point interactions and the six-point ones responsible for the &lt;e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;e:mi&gt;U&lt;/e:mi&gt;&lt;e:mo stretchy=\"false\"&gt;(&lt;/e:mo&gt;&lt;e:mn&gt;1&lt;/e:mn&gt;&lt;e:mo stretchy=\"false\"&gt;)&lt;/e:mo&gt;&lt;/e:math&gt; axial anomaly. The divergences are handled by means of the three-dimensional proper-time regularization with both ultraviolet and infrared cutoffs included, in order to eliminate unphysical imaginary parts. As a result, the mass degeneracies between the parity partners of all the SHBs are predicted in accordance with the chiral restoration. In particular, the HQS-doublet SHBs exhibit clear mass degeneracies due to the absence of the direct anomaly effects. We also predict a mass degeneracy of &lt;i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;i:msub&gt;&lt;i:mi mathvariant=\"normal\"&gt;Σ&lt;/i:mi&gt;&lt;i:mi&gt;c&lt;/i:mi&gt;&lt;/i:msub&gt;&lt;/i:math&gt; and &lt;l:math xmlns:l=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;l:msub&gt;&lt;l:mi mathvariant=\"normal\"&gt;Ω&lt;/l:mi&gt;&lt;l:mi&gt;c&lt;/l:mi&gt;&lt;/l:msub&gt;&lt;/l:math&gt; above the pseudocritical temperature &lt;o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;o:msub&gt;&lt;o:mi&gt;T&lt;/o:mi&gt;&lt;o:mi&gt;pc&lt;/o:mi&gt;&lt;/o:msub&gt;&lt;/o:math&gt; of chiral restoration, which results in a peculiar mass hierarchy for positive-parity HQS-doublet SHBs where &lt;q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;q:msubsup&gt;&lt;q:mi mathvariant=\"normal\"&gt;Ξ&lt;/q:mi&gt;&lt;q:mi&gt;c&lt;/q:mi&gt;&lt;q:mo&gt;′&lt;/q:mo&gt;&lt;/q:msubsup&gt;&lt;/q:math&gt; becomes heavier than &lt;t:math xmlns:t=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;t:msub&gt;&lt;t:mi mathvariant=\"normal\"&gt;Ω&lt;/t:mi&gt;&lt;t:mi&gt;c&lt;/t:mi&gt;&lt;/t:msub&gt;&lt;/t:math&gt; Besides, it is found that the decay width of &lt;w:math xmlns:w=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;w:msub&gt;&lt;w:mi mathvariant=\"normal\"&gt;Σ&lt;/w:mi&gt;&lt;w:mi&gt;c&lt;/w:mi&gt;&lt;/w:msub&gt;&lt;w:mo stretchy=\"false\"&gt;→&lt;/w:mo&gt;&lt;w:msub&gt;&lt;w:mi mathvariant=\"normal\"&gt;Λ&lt;/w:mi&gt;&lt;w:mi&gt;c&lt;/w:mi&gt;&lt;/w:msub&gt;&lt;w:mi&gt;π&lt;/w:mi&gt;&lt;/w:math&gt; vanishes above &lt;bb:math xmlns:bb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"&gt;&lt;bb:msub&gt;&lt;bb:mi&gt;T&lt;/bb:mi&gt;&lt;bb:mi&gt;pc&lt;/bb:mi&gt;&lt;/bb:msub&gt;&lt;/bb:math&gt; reflecting a closing of the threshold. The predicted modifications of masses and decay widths of the SHBs are expected to provide future heavy-ion collision experiments and lattice simulations","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"82 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884783","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":"Effects of subnucleonic fluctuations on the longitudinal structure of heavy-ion collisions","authors":"Oscar Garcia-Montero, Sören Schlichting, Jie Zhu","doi":"10.1103/physrevd.111.076029","DOIUrl":"https://doi.org/10.1103/physrevd.111.076029","url":null,"abstract":"Subnuclear fluctuations in the initial state of heavy-ion collisions impact not only transverse long-range correlations of small systems, but also the creation of longitudinal structures, seen in particle detectors as longitudinal decorrelation observables. In this work, we study the emergence of long-range rapidity correlations in nuclear collisions based on the 3D resolved initial state model, and for the first time, connect it to experimental observables using the 3</a:mn>+</a:mo>1</a:mn>D</a:mi></a:mrow></a:math> viscous hydrodynamics framework CLVisc. We include different sources of fluctuations at the nucleon and subnucleon level and study the effects of these additional fluctuation sources on the longitudinal structure of relevant observables, such as the flow decorrelations and directed flow. <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":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884804","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":"Timelike Compton scattering on a spin-0 target with kinematic twist-4 precision","authors":"V. Martínez-Fernández, B. Pire, P. Sznajder, J. Wagner","doi":"10.1103/physrevd.111.074034","DOIUrl":"https://doi.org/10.1103/physrevd.111.074034","url":null,"abstract":"We calculate the kinematic twist-3 and twist-4 corrections to the leading-order amplitude of timelike Compton scattering (TCS) on a (pseudo)scalar target, in the recently developed framework based on the conformal operator-product expansion. This allows us to compute the complete set of helicity amplitudes of the process, in particular those that vanish at leading twist. We compare the effects of higher-twist contributions to TCS with those in deeply virtual Compton scattering. Our estimates, based on a π</a:mi></a:math>-meson GPD model, indicate that these contributions are sizeable and will play a crucial role in the interpretation of data from current and forthcoming 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":"18 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884782","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":"Optical effects in an electric dipole spin polarized relativistic quantum plasma","authors":"V. M. Demcsak, D. B. Melrose","doi":"10.1103/physrevd.111.085029","DOIUrl":"https://doi.org/10.1103/physrevd.111.085029","url":null,"abstract":"The covariant, spin-dependent response tensor for an electric dipole-moment-polarized electron gas (statistical distribution of electrons and positrons) is calculated using the formalism of quantum plasmadynamics. A simultaneous eigenfunction of both the Dirac Hamiltonian and the electric moment spin operator is constructed. Expressions for the electric moment states and the corresponding vertex functions are derived. It is shown that when the distribution of momenta is isotropic, the spin-dependent response of an electric-moment-dependent quantum plasma is identically zero. The response is nonzero in the presence of a streaming motion perpendicular to the axis if the electron and positron distributions are different. The response has the same form as for a plasma with a nonzero, cross field current when ⟨</a:mo>p</a:mi></a:mrow>i</a:mi></a:mrow></a:msub>⟩</a:mo>≠</a:mo>0</a:mn></a:mrow></a:math>. This quantum relativistic correction is used to identify the dispersion equation for an electric moment spin-polarized plasma with a streaming cold plasma background. In particular, the natural modes of an electric-moment-dependent quantum plasma exhibit elliptical polarization. This is in contrast to a magnetic-moment-dependent electron gas, which is gyrotropic, or a helicity-dependent electron gas, which is optically active. The different responses, due to quantum plasmas being spin-polarized by different relativistically acceptable spin operators, does not appear in other approaches to quantum plasma theory. <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":"43 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884909","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}