Journal of High Energy Physics最新文献_第7页

An intermediate scale R-axion & the QCD axion 一个中等尺度的r -轴子& QCD轴子

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)208

James Unwin

{"title":"An intermediate scale R-axion & the QCD axion","authors":"James Unwin","doi":"10.1007/JHEP08(2026)208","DOIUrl":"10.1007/JHEP08(2026)208","url":null,"abstract":"An intermediate scale R-axion faces an immediate obstruction from the Dine-Festuccia-Komargodski (DFK) bound on the superpotential, 2|⟨W⟩| ≤ fRF, since for a nearly Minkowski vacuum it typically follows that fR ≳ MPl. We show that this lower bound on fR can be relaxed in an effective construction with the scalar potential tuned near zero via a mixed F- and D-term uplift, leading to a metastable vacuum in which the usual Planckian-fR inference from the DFK argument is avoided locally. Validity of the effective field theory and metastability of the small fR vacuum generically both imply a relaxed bound: ( {f}_Rgtrsim sqrt{m_{3/2}{M}_{mathrm{Pl}}} ). We also highlight that if the R-symmetry has a QCD anomaly, this potentially permits the R-axion to play the role of the QCD axion. TeV-scale supersymmetry permits fR ~ 1011 GeV, this not only evades certain astrophysical and cosmological axion constraints, but notably lies in the window for which the observed dark matter abundance can be reproduced by the R-axion via the misalignment mechanism.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 8","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP08(2026)208.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837958","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

On the simplicity of de Sitter correlators 关于德西特相关器的简单性

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)205

Chandramouli Chowdhury, Song He, Yong-Xiang Su, Dongyu Yang

{"title":"On the simplicity of de Sitter correlators","authors":"Chandramouli Chowdhury, Song He, Yong-Xiang Su, Dongyu Yang","doi":"10.1007/JHEP08(2026)205","DOIUrl":"10.1007/JHEP08(2026)205","url":null,"abstract":"Motivated by recent evidence that equal-time correlators can be simpler than the corresponding wavefunction coefficients, we study de Sitter correlators in conformally coupled ϕ3 theory directly. By inverting the momentum-space dressing rules, we derive a time integral representation for generic graphs and show that its natural building blocks are flat space correlators of fields and conjugate momenta. Among other things, this representation gives two useful recursive structures, one obtained by collapsing leaves and one by fusing lower-point graphs. In this representation several simplifications also become immediate. Graphs with an odd number of conjugate momentum insertions vanish, explaining the weight drop of odd-point correlators, melonic insertions collapse to lower complexity graphs and the leading behavior near total and partial-energy singularities is manifest, closely paralleling the flat space story. We then take a first step beyond the integrand and study integrated answers. For tree level families, in particular chains and stars, we find that the symbol alphabet of the correlator is smaller than that of the corresponding wavefunction, with the missing letters admitting a natural interpretation in terms of tubing data. These results support a correlator-first viewpoint for de Sitter observables: part of their simplicity appears to be intrinsic to the correlator itself, rather than inherited indirectly from the wavefunction.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 8","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP08(2026)205.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837960","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 Lindbladian for holographic Brownian motion 全息布朗运动的Lindbladian

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)206

Daichi Takeda

引用次数: 0

Making the case for massive islands 为建造大型岛屿做准备

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)214

Hao Geng

{"title":"Making the case for massive islands","authors":"Hao Geng","doi":"10.1007/JHEP08(2026)214","DOIUrl":"10.1007/JHEP08(2026)214","url":null,"abstract":"It has been established in both high and low spacetime dimensions that existing constructions of entanglement islands, at least in the study of black holes, are all in the context of massive gravity. In fact, later studies realized that the graviton mass is not an accident and it is necessary for the consistency of the holographic interpretation for entanglement islands. An important lesson we learned from these studies is that the graviton mass is a manifestation of the deep relationship between quantum entanglement and emergent geometry (EPR=ER). Nevertheless, various interesting questions and counter-arguments exist regarding whether this connection is of any relevance, either by modifying the definition of entanglement islands or denying the graviton mass as a physically relevant concept. In this paper, we will revisit the necessity of graviton mass for the consistency of entanglement islands and address the above questions in and out of the literature. Since the calculations in higher dimensions are already well understood, we will start with a demonstration of massive islands in a frequently used lower dimensional model — AdS2 Jackiw-Teitelboim (JT) gravity coupled with transparent conformal matter fields, for which the relationship between energy dissipation and the graviton mass manifests. We will then discuss the necessity of graviton mass for entanglement islands in general situations and clarify the physical meaning of graviton mass. In the end, we will comment on the attempts to construct entanglement islands in massless gravity and suggest the search for a new type of entanglement wedges in holography.The purpose of this paper is to summarize the recent progress, clarifying potential confusions and convey key messages to both experts and non-experts in the field.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 8","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP08(2026)214.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837824","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

Light vector dark matter via a magnetic dipole portal: bridging direct detection and fixed-target searches 光矢量暗物质通过磁偶极门户：桥接直接探测和固定目标搜索

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)211

Avik Banerjee, Riccardo Catena, Taylor R. Gray

{"title":"Light vector dark matter via a magnetic dipole portal: bridging direct detection and fixed-target searches","authors":"Avik Banerjee, Riccardo Catena, Taylor R. Gray","doi":"10.1007/JHEP08(2026)211","DOIUrl":"10.1007/JHEP08(2026)211","url":null,"abstract":"We present a model featuring sub-GeV vector dark matter by augmenting the Standard Model with a new non-Abelian dark SU(2)D, spontaneously broken by the vacuum expectation values of a scalar doublet and a triplet. Interactions between the dark and visible sectors arise through a dimension-5 non-Abelian avatar of kinetic mixing portal, inducing effective magnetic dipole couplings of the dark matter, with the photon and Z boson. The resulting spectrum of the dark gauge bosons naturally exhibits an inverse mass hierarchy between the dark matter and the Z′, leading to interesting phenomenology at fixed-target experiments such as LDMX through dark off-shell bremsstrahlung, dark Higgs-strahlung, invisible vector meson decay, and visible decays. We compute the thermal relic abundance across sub-GeV dark matter masses, with regions of freeze-out proceeding via annihilation into dark sector states or direct annihilation into Standard Model states. Bounds from a broad set of laboratory probes, along with cosmological and astrophysical observations, are incorporated in our analysis. Among them, the most restrictive bounds originate from direct detection experiments, Big Bang Nucleosynthesis, collider searches, and the CMB. Our results demonstrate that a sizeable region of parameter space remains consistent with the observed relic abundance and current experimental constraints, and that fixed-target searches should be considered in tandem with direct detection and cosmological probes for an effective and comprehensive search strategy, especially in the off-shell regime.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 8","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP08(2026)211.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837747","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

Parafermionizing the monster 对怪物进行消毒

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)204

Yamato Honda, Justin Kaidi, Ippo Orii

{"title":"Parafermionizing the monster","authors":"Yamato Honda, Justin Kaidi, Ippo Orii","doi":"10.1007/JHEP08(2026)204","DOIUrl":"10.1007/JHEP08(2026)204","url":null,"abstract":"We study the parafermionization of the Monster CFT with respect to its ℤpA subgroups, with p an odd prime. Under certain assumptions, we show that the parafermionization is equal to a non-invertible gauging of ( mathcal{P}(p)times mathcal{P}{(p)}^{vee } ), where ( mathcal{P}(p) ) is the theory of ℤp-parafermions and ( mathcal{P}{(p)}^{vee } ) is an appropriate dual theory, with global symmetry characterized by the centralizer of ℤpA. By tracking the symmetries of ( mathcal{P}(p)times mathcal{P}{(p)}^{vee } ) through the non-invertible gauging, we argue that the diagonal Monster CFT has ( mathrm{Rep}left(mathfrak{so}{(3)}_pright)boxtimes mathrm{Rep}{left(mathfrak{so}{(3)}_pright)}^{mathrm{op}} ) symmetry, and hence that the holomorphic Monster theory has symmetry ( mathrm{Rep}left(mathfrak{so}{(3)}_pright) ). We then compute the defect McKay-Thompson series associated to these symmetries, and prove that their invariance subgroups are Γ1(p + 2).","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 8","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP08(2026)204.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837469","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

Anti-collinear resummation in JIMWLK evolution in the linear regime 线性条件下JIMWLK演化的反共线恢复

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)213

Alex Kovner, Michael Lublinsky, Maxim Nefedov, Vladimir Skokov

引用次数: 0

Updating the holomorphic modular bootstrap 更新全纯模自举

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)216

Suresh Govindarajan, Akhila Sadanandan

引用次数: 0

A radiative neutrino mass model with semi-annihilating boosted dark matter 辐射中微子质量模型与半湮灭增强暗物质

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)207

Motoko Fujiwara, Takashi Toma

引用次数: 0

Constraining new physics in charm quark associated Higgs boson production events using the Standard Model effective field theory approach 用标准模型有效场论方法约束粲夸克相关希格斯玻色子产生事件的新物理

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-08-26 DOI: 10.1007/JHEP08(2026)215

Nordin Breugelmans, Felix Heyen, Jorgen D’Hondt, Michael Tytgat, Gerrit Van Onsem

{"title":"Constraining new physics in charm quark associated Higgs boson production events using the Standard Model effective field theory approach","authors":"Nordin Breugelmans, Felix Heyen, Jorgen D’Hondt, Michael Tytgat, Gerrit Van Onsem","doi":"10.1007/JHEP08(2026)215","DOIUrl":"10.1007/JHEP08(2026)215","url":null,"abstract":"As the search for observable deviations from the Standard Model of particle physics remains to be of significant interest, effective field theory (EFT) continues to be a popular method to parametrize such effects. In this work, a first-time investigation is performed of the unique capability of measurements of charm quark associated Higgs boson production (cH) in proton-proton collisions at the CERN Large Hadron Collider to constrain a set of dimension-six EFT operators. The phenomenology of these operators is discussed and a proposed analysis strategy is presented, with a focus on H → ZZ* → 4μ decays, using a generic detector simulation that is parametrized to reflect the response of the CMS detector at the LHC. From this, expected 95% CL upper limits are derived for the Wilson coefficients of individual operators by considering yield and shape effects in the spectra of the four-muon invariant mass m4μ and the leading jet transverse momentum pT. Scenarios with simultaneous contributions from two operators are also considered. Finally, potential analysis improvements that may be implemented in an experimental context are outlined.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 8","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP08(2026)215.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148837542","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