Nuclear Physics BPub Date : 2025-09-05DOI: 10.1016/j.nuclphysb.2025.117103
Amijit Bhattacharjee , Prabwal Phukon
{"title":"Thermodynamics of flat 4D Einstein-Gauss-Bonnet black hole with Rényi entropy: An RPST-like formalism","authors":"Amijit Bhattacharjee , Prabwal Phukon","doi":"10.1016/j.nuclphysb.2025.117103","DOIUrl":"10.1016/j.nuclphysb.2025.117103","url":null,"abstract":"<div><div>We investigate the thermodynamics of asymptotically flat black holes in four-dimensional Einstein-Gauss-Bonnet (4D-EGB) gravity using Rényi entropy as a non-extensive generalization of the Bekenstein-Hawking entropy. The resulting thermodynamic structure, formulated within a restricted phase space-like (RPST-like) framework, reveals a striking resemblance to the thermodynamics of AdS black holes in the standard RPST formalism. In particular, we identify a thermodynamic duality between the Rényi deformation parameter <em>β</em> and a conjugate response potential <em>ζ</em>, analogous to the central charge and chemical potential in holographic theories. An extensive thermodynamic analysis in both fixed charge-<span><math><mo>(</mo><mover><mrow><mi>Q</mi></mrow><mrow><mo>˜</mo></mrow></mover><mo>)</mo></math></span> and fixed potential-<span><math><mo>(</mo><mover><mrow><mi>Φ</mi></mrow><mrow><mo>˜</mo></mrow></mover><mo>)</mo></math></span> ensembles reveal Van der Waals-like first-order phase transitions which is an unexpected feature for asymptotically flat black holes. Furthermore, through the formalism of geometrothermodynamics (GTD) and thermodynamic topology. It is shown that the Rényi modified flat black hole mimics, in both its thermodynamic topology and geometry, the features of its counterparts in the 4D-EGB AdS black hole under RPST, reinforcing the structural similarity between these seemingly different systems. Our findings point to a deeper correspondence between non-extensive entropy and holographic thermodynamics, suggesting that Rényi entropy may serve as a natural bridge between flat-space black hole thermodynamics and AdS holography.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1019 ","pages":"Article 117103"},"PeriodicalIF":2.8,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Nuclear Physics BPub Date : 2025-09-05DOI: 10.1016/j.nuclphysb.2025.117109
José Gaite
{"title":"Renormalization group for effective field theories: Cutoff schemes and universality","authors":"José Gaite","doi":"10.1016/j.nuclphysb.2025.117109","DOIUrl":"10.1016/j.nuclphysb.2025.117109","url":null,"abstract":"<div><div>In effective field theories, the concept of renormalization of perturbative divergences is replaced by renormalization group concepts such as <em>relevance</em> and <em>universality</em>. Universality is related to cutoff scheme independence in renormalization. Three-dimensional scalar field theory with just the quartic coupling is universal but the less relevant sextic coupling introduces a cutoff scheme dependence, which we quantify by three independent parameters, in the two-loop order of perturbation theory. However, reasonable schemes only allow reduced ranges of those parameters, even contrasting the sharp cutoff with very smooth cutoffs. The sharp cutoff performs better. In any case, the effective field theory possesses some degree of universality even in the massive case (off criticality).</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1019 ","pages":"Article 117109"},"PeriodicalIF":2.8,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Dynamics of test particles and quasi-periodic oscillations mathematically around F(R)-corrected black holes","authors":"Allah Ditta , Abdelmalek Bouzenada , Muneerah Alomar , Mona Bin-Asfour","doi":"10.1016/j.nuclphysb.2025.117099","DOIUrl":"10.1016/j.nuclphysb.2025.117099","url":null,"abstract":"<div><div>This study explores the influence of test particles in the vicinity of a static, spherically symmetric black hole (BH) within the <span><math><mi>F</mi><mo>(</mo><mi>R</mi><mo>)</mo></math></span>-corrected model. The BH solution is illustrated by five parameters: mass <em>M</em>, three dimensionless coefficients <em>a</em>, <em>b</em>, and <em>c</em>, and the Planck length <span><math><msub><mrow><mi>l</mi></mrow><mrow><mi>p</mi></mrow></msub></math></span>. Using the effective potential, we show the stability of circular orbits and derive an exact result for the energy and angular momentum (AM) of particles in terms of the BH parameters. We define the innermost stable circular orbits (ISCOs) and examine the effective forces that influence particle trajectories. In addition, we analyze epicyclic oscillations (EO) close to the equatorial plane, providing exact formulas for radial, vertical, and orbital frequencies. The frequency of periastron precession is also evaluated. Furthermore, we investigate particle collisions near the BH horizon, computing the resulting center-of-mass energy (CME). Our results show the role of the model parameters in shaping the dynamics of the particles and their motion properties.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1019 ","pages":"Article 117099"},"PeriodicalIF":2.8,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Nuclear Physics BPub Date : 2025-09-04DOI: 10.1016/j.nuclphysb.2025.117104
Johannes Aastrup , Jesper Møller Grimstrup
{"title":"Dirac operators on configuration spaces and Yang-Mills quantum field theory","authors":"Johannes Aastrup , Jesper Møller Grimstrup","doi":"10.1016/j.nuclphysb.2025.117104","DOIUrl":"10.1016/j.nuclphysb.2025.117104","url":null,"abstract":"<div><div>In this paper we discuss a connection between Dirac operators on configuration spaces and Yang-Mills quantum field theory. We first show that the Hamilton operators of the self-dual and anti-self-dual sectors of a Yang-Mills quantum field theory emerge from unitary transformations of a Dirac equation formulated on a configuration space of gauge connections. Secondly, we formulate a Bott-Dirac operator on the configuration space and demonstrate how the Hamilton operator of a Yang-Mills quantum field theory coupled to a fermionic sector emerges from its square. Finally, we discuss a spectral invariant that emerges in this framework.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1019 ","pages":"Article 117104"},"PeriodicalIF":2.8,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Nuclear Physics BPub Date : 2025-09-04DOI: 10.1016/j.nuclphysb.2025.117087
Abdulmohsen Daham Alruwaili , Abdul Jawad , Ruqia Arif
{"title":"Analyzing DGP braneworld model stability through phase space phenomenon","authors":"Abdulmohsen Daham Alruwaili , Abdul Jawad , Ruqia Arif","doi":"10.1016/j.nuclphysb.2025.117087","DOIUrl":"10.1016/j.nuclphysb.2025.117087","url":null,"abstract":"<div><div>This study explores the cosmological dynamics of the Dvali-Gabadadze-Porrati (DGP) braneworld model, focusing on its behavior under various forms of nonlinear interaction between dark energy and dark matter. Employing a dynamical systems approach, the research identifies critical points in the cosmological evolution and examines their stability under perturbations. Four different interaction models are considered to analyze their effects on the late-time acceleration of the universe. The results reveal that certain interaction terms can lead to stable, accelerating solutions that are consistent with observational data. The study highlights how specific nonlinear interactions can influence cosmic evolution and provide viable alternatives to the standard ΛCDM model. These findings contribute to a deeper understanding of modified gravity scenarios and their role in addressing dark energy challenges.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1019 ","pages":"Article 117087"},"PeriodicalIF":2.8,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Nuclear Physics BPub Date : 2025-09-01DOI: 10.1016/j.nuclphysb.2025.117108
Dima Cheskis, Alex Prygarin
{"title":"Pomeron evolution and squeezed states in quantum optics","authors":"Dima Cheskis, Alex Prygarin","doi":"10.1016/j.nuclphysb.2025.117108","DOIUrl":"10.1016/j.nuclphysb.2025.117108","url":null,"abstract":"<div><div>We apply the formalism of coherent states in quantum optics to pomeron evolution and show that evolving squeezed pomeron states are equivalent to pomeron fan diagrams at the leading order of perturbative expansion. Based on our results, we interpret the action of the displacement operator as pomeron propagation and the action of the squeeze operator as pomeron interaction.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1019 ","pages":"Article 117108"},"PeriodicalIF":2.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Nuclear Physics BPub Date : 2025-09-01DOI: 10.1016/j.nuclphysb.2025.117091
M.F. Mustamin , M. Demirci , I.A. Qattan
{"title":"Probing the charged Higgs boson with low-energy electronic recoil at direct detection measurements","authors":"M.F. Mustamin , M. Demirci , I.A. Qattan","doi":"10.1016/j.nuclphysb.2025.117091","DOIUrl":"10.1016/j.nuclphysb.2025.117091","url":null,"abstract":"<div><div>The Higgs triplet model provides a natural explanation of the smallness of neutrino mass without requiring right-handed neutrinos. We probe the singly charged Higgs boson of the model in the framework of solar neutrino interaction with electrons in dark matter direct detection experiments. We explore its implications with the recent data from PandaX-4T and XENONnT experiments. Correspondingly, we derive new limits on the ratio of coupling and mass of the charged Higgs boson and compare our results with other limits obtained in the literature. More stringent limits are obtained compared to previous results, highlighting the potential investigation of such models in the currently advanced direct detection experiments.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 117091"},"PeriodicalIF":2.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144922227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Nuclear Physics BPub Date : 2025-09-01DOI: 10.1016/j.nuclphysb.2025.117094
Alexios P. Polychronakos , Konstantinos Sfetsos
{"title":"Nonabelian ferromagnets with three-body interactions","authors":"Alexios P. Polychronakos , Konstantinos Sfetsos","doi":"10.1016/j.nuclphysb.2025.117094","DOIUrl":"10.1016/j.nuclphysb.2025.117094","url":null,"abstract":"<div><div>We study the thermodynamics of nonabelian ferromagnets consisting of atoms in the fundamental representation of <span><math><mi>S</mi><mi>U</mi><mo>(</mo><mi>N</mi><mo>)</mo></math></span> and interacting with two-body and three-body interactions. Using a mean field approach, we uncover an intricate phase structure, depending on the relative strength and sign of the two-body and three-body coupling constants. In the case where two-body interactions are ferromagnetic and three-body ones are antiferromagnetic, we uncover a rich cascade of phase transitions, the appearance of phases with two distinct polarization directions being the most striking novel feature. Our results are relevant to magnetic systems where higher-body interactions cannot be neglected.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 117094"},"PeriodicalIF":2.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Nuclear Physics BPub Date : 2025-09-01DOI: 10.1016/j.nuclphysb.2025.117093
Rongchao Ma
{"title":"Symmetry packaging II: Packaged subspaces, packaged entanglement, and classification","authors":"Rongchao Ma","doi":"10.1016/j.nuclphysb.2025.117093","DOIUrl":"10.1016/j.nuclphysb.2025.117093","url":null,"abstract":"<div><div>Symmetry packaging is the phenomenon whereby, upon particle creation, all the internal quantum numbers (IQNs) become locked into a single irreducible representation (irrep) block of the gauge group, as required by locality and gauge invariance. The resulting packaged quantum states exhibit characteristic symmetry constraints and entanglement patterns. We develop a group-theoretic framework to describe the symmetry packaging for a variety of concrete symmetries and to classify the corresponding packaged states:</div><div><strong>(1)</strong> We prove that for any finite or compact group <em>G</em>, there exist <em>G</em>-associated packaged subspaces, in which every vector is automatically a packaged state. In particular, in multi-particle systems, any nontrivial representation of <em>G</em> induces inseparable packaged entanglement that locks together all IQNs.</div><div><strong>(2)</strong> We apply this framework to symmetry packaging in finite groups (cyclic group <span><math><msub><mrow><mi>Z</mi></mrow><mrow><mi>N</mi></mrow></msub></math></span>, charge conjugation <em>C</em>, fermion parity, parity <em>P</em>, time reversal <em>T</em>, and dihedral groups), compact groups (<span><math><mi>U</mi><mo>(</mo><mn>1</mn><mo>)</mo></math></span>, <span><math><mrow><mi>SU</mi></mrow><mo>(</mo><mi>N</mi><mo>)</mo></math></span>, <span><math><mrow><mi>SU</mi></mrow><mo>(</mo><mn>2</mn><mo>)</mo></math></span>, and <span><math><mrow><mi>SU</mi></mrow><mo>(</mo><mn>3</mn><mo>)</mo></math></span>), <em>p</em>-form symmetries, and hybrid symmetries. In each case, gauge invariance and superselection rules forbid the factorization of the resulting states. We illustrate how Bell-type packaged entangled states, color confinement, and hybrid gauge-invariant configurations all arise naturally. These results yield a complete classification of packaged quantum states.</div><div><strong>(3)</strong> Finally, we extend the packaging principle to incorporate full spacetime symmetry and hybrid systems of local, global, and Lorentz/Poincaré charges.</div><div>Our approach unifies tools from group theory, gauge theory, and topological classification. These results may be useful for potential applications in high energy physics, quantum field theory, and quantum technologies.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 117093"},"PeriodicalIF":2.8,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144924998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}
Nuclear Physics BPub Date : 2025-08-28DOI: 10.1016/j.nuclphysb.2025.117082
Zhiguo Ren, Jing Yu, Lin Huang
{"title":"The N-soliton solutions of the n-component generalized Sasa-Satsuma system: Riemann-Hilbert method","authors":"Zhiguo Ren, Jing Yu, Lin Huang","doi":"10.1016/j.nuclphysb.2025.117082","DOIUrl":"10.1016/j.nuclphysb.2025.117082","url":null,"abstract":"<div><div>Using the Riemann-Hilbert method, the paper systematically investigates the <em>n</em>-component generalized Sasa-Satsuma system. By utilizing the Tu scheme, we systematically construct the <em>n</em>-component generalized Sasa-Satsuma integrable hierarchy, and obtain the Lax pair of the <em>n</em>-component generalized Sasa-Satsuma system. Then we give the spectral analysis of the Lax pair, from which a Riemann-Hilbert problem is formulated. Moreover, by solving the particular Riemann-Hilbert problem with vanishing scattering coefficients, <em>N</em>-soliton solutions are obtained for the <em>n</em>-component generalized Sasa-Satsuma system. Furthermore, for <span><math><mi>n</mi><mo>=</mo><mn>3</mn></math></span>, we graphically present the structures of the single-soliton and double-soliton solutions by selecting appropriate parameters.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1019 ","pages":"Article 117082"},"PeriodicalIF":2.8,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144926863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}