Journal of High Energy Physics最新文献_第2页

Entanglement features in scattering mediated by heavy particles 重粒子介导散射中的纠缠特性

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-10-01 DOI: 10.1007/JHEP10(2025)003

Chon Man Sou, Yi Wang, Xingkai Zhang

引用次数: 0

New rare meson decay constraints on a light vector in U(1)B−L, U(1)R and the dark photon 在U(1)B−L， U(1)R和暗光子的光向量上新的稀有介子衰变约束

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)211

Osamu Seto, Takashi Shimomura, Shinsuke Yoshida

引用次数: 0

Fast evaluation of Feynman integrals for Monte Carlo generators 蒙特卡罗发生器费曼积分的快速计算

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)210

Pau Petit Rosàs, William J. Torres Bobadilla

{"title":"Fast evaluation of Feynman integrals for Monte Carlo generators","authors":"Pau Petit Rosàs, William J. Torres Bobadilla","doi":"10.1007/JHEP09(2025)210","DOIUrl":"10.1007/JHEP09(2025)210","url":null,"abstract":"Building on the idea of numerically integrating differential equations satisfied by Feynman integrals, we propose a novel strategy for handling branch cuts within a numerical framework. We develop an integrator capable of evaluating a basis of integrals in both double and quadruple precision, achieving significantly reduced computational times compared to existing tools. We demonstrate the performance of our integrator by evaluating one- and two-loop five-point Feynman integrals with up to nine complex kinematic scales. In particular, we apply our method to the radiative return process of massive electron-positron annihilation into pions plus an energetic photon within scalar QED, for which we also build the differential equation, and extend it to the case where virtual photons acquire an auxiliary complex mass under the Generalised Vector-Meson Dominance model. Furthermore, we validate our approach on two integral families relevant for the two-loop production of ( toverline{t} ) + jet. The integrator achieves, in double precision, execution times of the order of milliseconds for one-loop topologies and hundreds of milliseconds for the two-loop families, enabling for on-the-fly computation of Feynman integrals in Monte Carlo generators and a more efficient generation of grids for the topologies with prohibitive computational costs.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 9","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP09(2025)210.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

NNLO+PS double Higgs boson production with top-quark mass corrections in GENEVA 日内瓦NNLO+PS双希格斯玻色子生产与顶夸克质量修正

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)206

Simone Alioli, Giulia Marinelli, Davide Napoletano

引用次数: 0

Orthosymplectic quivers: indices, Hilbert series, and generalised symmetries 正辛颤振：指标、希尔伯特级数和广义对称性

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)212

William Harding, Noppadol Mekareeya, Zhenghao Zhong

{"title":"Orthosymplectic quivers: indices, Hilbert series, and generalised symmetries","authors":"William Harding, Noppadol Mekareeya, Zhenghao Zhong","doi":"10.1007/JHEP09(2025)212","DOIUrl":"10.1007/JHEP09(2025)212","url":null,"abstract":"We investigate generalised global symmetries in 3d ( mathcal{N}=4 ) orthosymplectic quiver gauge theories. Using the superconformal index, we identify a D8 categorical symmetry web in a class of theories featuring ( mathfrak{so}(2N)times mathfrak{usp}(2N) ) gauge algebra (at zero Chern-Simons levels) and n bifundamental half-hypermultiplets, analogous to ABJ-type models. As a distinct contribution, we improve the prescription, previously studied in the literature, for computing Coulomb branch Hilbert series of SO(N) gauge theories with Nf vector hypermultiplets. Our improved prescription extends these methods by incorporating fugacities for discrete zero-form symmetries — specifically charge conjugation and magnetic symmetries — and properly treating background magnetic fluxes for the flavour symmetry. This refinement enables calculations for various global forms (O(N)±, Spin(N), Pin(N)) and ensures consistency with the Coulomb branch limit of the superconformal index and known dualities. The proper treatment of fluxes is particularly essential for analysing orthosymplectic quivers where such a flavour symmetry is gauged. We verify our methods through several examples, including an analysis of the mapping of discrete symmetries under mirror symmetry for T[SO(N)] and T[USp(2N)] theories. The analysis also readily generalises to the Tρ[SO(N)] and Tρ[USp(2N)] theories associated with partition ρ.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 9","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP09(2025)212.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A note on kinematic flow and differential equations for two-site one-loop graph in FRW spacetime 关于FRW时空中两点单环图的运动流和微分方程的注记

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)209

Yanfeng Hang, Cong Shen

{"title":"A note on kinematic flow and differential equations for two-site one-loop graph in FRW spacetime","authors":"Yanfeng Hang, Cong Shen","doi":"10.1007/JHEP09(2025)209","DOIUrl":"10.1007/JHEP09(2025)209","url":null,"abstract":"In this work, we systematically study the differential systems governing loop-level wavefunction coefficients of conformally-coupled scalar field theory within a general power-law FRW cosmology. By utilizing the twisted cohomology, hyperplane arrangements, and IBP techniques, we derive the canonical differential equations for two-site one-loop bubble and tadpole systems, revealing distinct structural differences. We present new insights into the one-loop tadpole system, uncovering that its integral family can include multiple parent functions due to distinct pairs of relative hyperplane associated with each function, unlike the single parent function appearing in the one-loop bubble case. Moreover, we demonstrate that the tadpole correlator selectively probes only a subset of the cohomology space, despite the hyperplane arrangement suggesting a higher-dimensional structure. Another novel contribution of this work is the extension of kinematic flow framework to the loop-level scenarios for the first time. Using a graphical approach based on family trees generated by marked tubing graphs, which encode singularity structures, we efficiently construct the differential equations and uncover the hierarchical relationships among the associated master integrals. Additionally, we provide a preliminary discussion on generalization to two-site higher-loop configurations. We propose a general decomposition formula for the canonical form of a two-site diagram with arbitrary loops, breaking it into unshifted and shifted components associated with the fundamental tree-level and bubble-like structures, and establish a block-wise decomposition rule for the matrix ( overset{sim }{A} ) in the corresponding differential system. These advancements provide a unified framework for two-site loop-level correlators and lay the groundwork for future study of more complex multi-site loop systems.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 9","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP09(2025)209.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nf-contribution to the virtual correction for electroweak vector boson production at NNLO NNLO电弱矢量玻色子产生虚校正的nf贡献

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)213

Dario Kermanschah, Matilde Vicini

引用次数: 0

Regular black holes and complete monotonicity 规则黑洞和完全单调性

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)208

A. Almasi, A. Moradpouri, M. Shahbazi

引用次数: 0

On the spectra of holographic QFTs on constant curvature manifolds 常曲率流形上全息qft的谱

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)205

Parisa Mashayekhi, Ahmad Ghodsi, Elias Kiritsis, Francesco Nitti

{"title":"On the spectra of holographic QFTs on constant curvature manifolds","authors":"Parisa Mashayekhi, Ahmad Ghodsi, Elias Kiritsis, Francesco Nitti","doi":"10.1007/JHEP09(2025)205","DOIUrl":"10.1007/JHEP09(2025)205","url":null,"abstract":"We analyze linear fluctuations of five-dimensional Einstein-Dilaton theories dual to holographic quantum field theories defined on four-dimensional de Sitter and Anti-de Sitter space-times. We identify the physical propagating scalar and tensor degrees of freedom. For these, we write the linearized bulk field equations as eigenvalue equations. In the dual QFT, the eigenstates correspond to towers of spin-0 and spin-2 particles propagating on (A)dS4 associated to gauge-invariant composite states. Using particular care in treating special “zero-modes,” we show in general that, for negative curvature, the particle spectra are always discrete, whereas for positive curvature they always have a continuous component starting at m2 = (9/4)α−2, where α is the (A)dS4 radius. We numerically compute the spectra in a concrete model characterized by a polynomial dilaton bulk potential admitting holographic RG-flow solutions with a UV and IR fixed points. In this case, we find no discrete spectrum and no perturbative instabilities.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 9","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP09(2025)205.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

String stars in d ≥ 7 d≥7的弦星

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-09-26 DOI: 10.1007/JHEP09(2025)204

Alek Bedroya, David H. Wu

{"title":"String stars in d ≥ 7","authors":"Alek Bedroya, David H. Wu","doi":"10.1007/JHEP09(2025)204","DOIUrl":"10.1007/JHEP09(2025)204","url":null,"abstract":"We raise a thermodynamic puzzle for Horowitz-Polchinski (HP) solutions in the presence of extra compact dimensions and show that it can be resolved by the existence of higher-dimensional string stars. We provide non-trivial evidence for the existence of such string stars in spacetime dimensions d ≥ 7 as higher-dimensional counterparts of HP solutions. In particular, we explicitly construct string star solutions in d = 7 that are under perturbative control. In d > 7, at the Hagedorn temperature, we identify these string stars as a specific normalizable representative of a new one-parameter bounded family of Euclidean solutions which can be under perturbative control. The higher-order α′ corrections play a crucial role in our arguments and, as pointed by other works, nullify the previous arguments against the existence of string stars in d ≥ 7. The higher-dimensional string stars have non-zero free energy at Hagedorn temperature and their mass and free energy are of the same order as those of a string-sized black hole. In d > 7, these solutions are string sized, but in d = 7, the size of these solutions diverges as ∼ (TH − T)−1/4 near the Hagedorn temperature.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 9","pages":""},"PeriodicalIF":5.5,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP09(2025)204.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0