Journal of High Energy Physics最新文献_第9页

Lattice gradient flows (de-)stabilizing topological sectors 晶格梯度流（去）稳定拓扑扇形

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-16 DOI: 10.1007/JHEP04(2025)123

Yuya Tanizaki, Akio Tomiya, Hiromasa Watanabe

引用次数: 0

One loop analysis of the cubic action for gravity 引力立方作用的单环分析

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-16 DOI: 10.1007/JHEP04(2025)117

Enrique Álvarez, Jesús Anero, Carmelo P. Martin

引用次数: 0

Chiral anomalous magnetohydrodynamics in action: effective field theory and holography 手性异常磁流体动力学的作用：有效场论和全息

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-16 DOI: 10.1007/JHEP04(2025)126

Matteo Baggioli, Yanyan Bu, Xiyang Sun

{"title":"Chiral anomalous magnetohydrodynamics in action: effective field theory and holography","authors":"Matteo Baggioli, Yanyan Bu, Xiyang Sun","doi":"10.1007/JHEP04(2025)126","DOIUrl":"10.1007/JHEP04(2025)126","url":null,"abstract":"Chiral Anomalous Magnetohydrodynamics (CAMHD) provides a low-energy effective framework for describing chiral fluids in the presence of dynamical electromagnetic fields and axial anomaly. This theory finds applications across diverse physical systems, including heavy-ion collisions, the early universe, and Weyl/Dirac semimetals. Along with Schwinger-Keldysh (SK) effective theories, holographic models serve as a complementary tool to provide a systematic formulation of CAMHD that goes beyond the weak coupling regime. In this work, we explore holographic models with U(1)A × U(1) symmetry, where the electromagnetic U(1) field is rendered dynamical through mixed boundary conditions applied to the bulk gauge field and the axial anomaly is introduced via a Chern-Simons bulk term. Through a detailed holographic SK analysis, we demonstrate that the low-energy effective action derived from this model aligns precisely with the SK field theory proposed by Landry and Liu and, in fact, it generalizes it to scenarios with finite background axial field. This alignment not only validates the holographic model but also paves the way for its use in exploring unresolved aspects of CAMHD, such as the recently proposed chiral magnetic electric separation wave and nonlinear chiral instabilities.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)126.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840425","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

QCD axion dark matter from level crossing with refined adiabatic condition 精化绝热条件下水平交叉的QCD轴子暗物质

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-16 DOI: 10.1007/JHEP04(2025)124

Kai Murai, Yuma Narita, Fuminobu Takahashi, Wen Yin

{"title":"QCD axion dark matter from level crossing with refined adiabatic condition","authors":"Kai Murai, Yuma Narita, Fuminobu Takahashi, Wen Yin","doi":"10.1007/JHEP04(2025)124","DOIUrl":"10.1007/JHEP04(2025)124","url":null,"abstract":"We investigate the level-crossing phenomenon in two-axion systems, where the mass eigenvalues intersect as the mass of one axion increases with the cooling of the universe. This phenomenon can significantly alter the abundance of axions in the early universe. Our study focuses on its impact on the QCD axion and an axion-like particle, identifying viable regions of axion mass and decay constant that explain the observed dark matter. We demonstrate the equivalence of two different bases for describing the axion system in the existing literature. Furthermore, we derive an improved expression for the adiabatic condition that overcomes limitations in earlier formulations. This new formulation is basis-independent, and we numerically validate its effectiveness. Our analysis reveals specific relations between axion masses and axion-photon couplings within the viable region. These relations could potentially serve as a smoking gun signal for this scenario if confirmed experimentally. We also find that, using the chiral perturbation model, the thermal friction on the QCD axion might be significantly larger than previously estimated. Additionally, we show that a simple model with axion mixing can naturally realize either a heavier or lighter QCD axion.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)124.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856574","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

Effective field theory and scalar triplet dark matter 有效场论和标量三重态暗物质

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-16 DOI: 10.1007/JHEP04(2025)118

Carolina Arbeláez, Marcela González, Martin Hirsch, Nicolás A. Neill, Diego Restrepo

引用次数: 0

Two-loop four-point amplitudes on the Coulomb branch of ( mathcal{N} ) = 4 super Yang-Mills ( mathcal{N} ) = 4 超级杨-米尔斯库仑支上的二环四点振幅

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-16 DOI: 10.1007/JHEP04(2025)116

Wojciech Flieger, Johannes Henn, Anders Schreiber, Jaroslav Trnka

{"title":"Two-loop four-point amplitudes on the Coulomb branch of ( mathcal{N} ) = 4 super Yang-Mills","authors":"Wojciech Flieger, Johannes Henn, Anders Schreiber, Jaroslav Trnka","doi":"10.1007/JHEP04(2025)116","DOIUrl":"10.1007/JHEP04(2025)116","url":null,"abstract":"We explore scattering amplitudes on the Coulomb branch of maximally supersymmetric Yang-Mills theory. We introduce a particular pattern of scalar vacuum expectation values that allow us to define amplitudes with a different mass pattern compared to what was studied previously. This is motivated by an extension of the Amplituhedron that leads to infrared-finite four-particle amplitudes involving massive particles. We work out the Feynman rules on the Coulomb branch and use them, together with generalized unitarity techniques, to perform consistency checks on the Amplituhedron expectations for the one- and two-loop integrands for the four-particle amplitude. We present details of the computation of the required two-loop four-point integrals via a four-dimensional version of the differential equations method. Finally, we study the Regge limit of the four-point amplitude, including the first power suppressed terms. We find that when organized in terms of a suitable expansion parameter, the subleading power term exponentiates, with the exponent matching the anomalous dimension of a cusped Wilson line with a local operator insertion. The latter is known from integrability, which leads to a prediction at higher loop orders in the Regge limit.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)116.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852525","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

Asymmetric dark matter from semi-annihilation: unitarity constraints and long-lived final states 来自半湮灭的不对称暗物质：单元性约束和长寿命终态

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-15 DOI: 10.1007/JHEP04(2025)104

Tomáš Blažek, Peter Maták, Viktor Zaujec

引用次数: 0

Banks-Zaks stabilisation of non-SUSY strings 非 SUSY 弦的班克斯稳定化

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-15 DOI: 10.1007/JHEP04(2025)107

Steven Abel, Ivano Basile, Viktor G. Matyas

{"title":"Banks-Zaks stabilisation of non-SUSY strings","authors":"Steven Abel, Ivano Basile, Viktor G. Matyas","doi":"10.1007/JHEP04(2025)107","DOIUrl":"10.1007/JHEP04(2025)107","url":null,"abstract":"It appears to be difficult within string theory to obtain genuine scale separation between spacetime and the internal sector. In this paper, we propose a novel mechanism for scale-separated vacua which hinges on stringy effects that are invisible at the level of effective field theory. We show that (meta)stable vacua can form if a super no-scale one-loop potential combines with generic two-loop contributions to the vacuum energy, in a manner analogous to Banks-Zaks fixed points. Weak string coupling and scale separation arise from the accidental smallness of the one-loop term, which receives contributions only from massive states, relative to the two-loop term. We provide a proof of concept of this mechanism in explicit non-supersymmetric heterotic toroidal orbifolds by balancing the complete one-loop contribution against the estimated two-loop term and numerically minimizing the resulting effective potential in a restricted sector of moduli space. We note that this mechanism is generically possible within any fundamental theory that has a one-loop energy that gets contributions only from massive modes.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)107.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835752","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

Exact WKB in all sectors. Part I. Potentials with degenerate saddles 准确的WKB在所有部门。第一部分简并鞍势

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-15 DOI: 10.1007/JHEP04(2025)100

Tatsuhiro Misumi, Cihan Pazarbaşı

{"title":"Exact WKB in all sectors. Part I. Potentials with degenerate saddles","authors":"Tatsuhiro Misumi, Cihan Pazarbaşı","doi":"10.1007/JHEP04(2025)100","DOIUrl":"10.1007/JHEP04(2025)100","url":null,"abstract":"We explore the exact-WKB (EWKB) method through the analysis of Airy and Weber types, with an emphasis on the exact quantization of locally harmonic potentials in multiple sectors. The core innovation of our work lies in introducing a novel complexification approach to the energy parameter u, distinct from the common complexification of the (semi-classical) expansion parameter used in Borel summability. This new technique allows for continuous analytical continuation across different sectors of a potential while maintaining the exact quantization condition, even before median summation. By redefining the A-cycle above the potential barrier top, we ensure the quantization condition remains real and, by use of the Stokes automorphism and the median resummation, show that the resurgence structure is preserved across transitions between sectors. Furthermore, we discuss the Weber-type exact-WKB method, offering exact estimates for quantum actions around all types of saddle points, generalizing previous results. Through the analysis of these quantum actions, we reveal the presence of S-duality, facilitating the exchange between perturbative and non-perturbative behaviors, and we conjecture the mapping of the P-NP relations between dual theories. Our study encompasses periodic and symmetric double-well potentials, demonstrating that the exact-WKB method captures intricate structures in quantum systems in all sectors, including multi-instanton contributions and the resurgence of quantum actions.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)100.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840447","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

How fast does the WallGo? A package for computing wall velocities in first-order phase transitions WallGo有多快？一个计算一阶相变壁面速度的程序包

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2025-04-15 DOI: 10.1007/JHEP04(2025)101

Andreas Ekstedt, Oliver Gould, Joonas Hirvonen, Benoit Laurent, Lauri Niemi, Philipp Schicho, Jorinde van de Vis

{"title":"How fast does the WallGo? A package for computing wall velocities in first-order phase transitions","authors":"Andreas Ekstedt, Oliver Gould, Joonas Hirvonen, Benoit Laurent, Lauri Niemi, Philipp Schicho, Jorinde van de Vis","doi":"10.1007/JHEP04(2025)101","DOIUrl":"10.1007/JHEP04(2025)101","url":null,"abstract":"WallGo is an open-source software designed to compute the bubble wall velocity in first-order cosmological phase transitions. Additionally, it evaluates the energy budget available for generating gravitational waves. The main part of WallGo, built in Python, determines the wall velocity by solving the scalar-field(s) equation of motion, the Boltzmann equations and energy-momentum conservation for the fluid velocity and temperature. WallGo also includes two auxiliary modules: WallGoMatrix, which computes matrix elements for out-of-equilibrium particles, and WallGoCollision, which performs higher-dimensional integrals for Boltzmann collision terms. Users can implement custom models by defining an effective potential and specifying a list of out-of-equilibrium particles and their interactions.As the first public software to compute the wall velocity including out-of-equilibrium contributions, WallGo improves the precision of the computation compared to common assumptions in earlier computations. It utilises a spectral method for the deviation from equilibrium and collision terms that provides exponential convergence in basis polynomials, and supports multiple out-of-equilibrium particles, allowing for Boltzmann mixing terms. WallGo is tailored for non-runaway wall scenarios where leading-order coupling effects dominate friction.While this work introduces the software and the underlying theory, a more detailed documentation can be found in https://wallgo.readthedocs.io.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2025 4","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP04(2025)101.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852549","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