Journal of High Energy Physics最新文献

Multi-scale improved predictions for (ppto toverline{t}{W }^{+}+X) 的多尺度改进预测 (ppto toverline{t}{W }^{+}+X)

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-16 DOI: 10.1007/JHEP10(2026)190

Nikolaos Dimitrakopoulos, Malgorzata Worek

{"title":"Multi-scale improved predictions for (ppto toverline{t}{W }^{+}+X)","authors":"Nikolaos Dimitrakopoulos, Malgorzata Worek","doi":"10.1007/JHEP10(2026)190","DOIUrl":"10.1007/JHEP10(2026)190","url":null,"abstract":"We compare standard fixed-order NLO QCD predictions for the full off-shell (ppto {e}^{+}{nu}_{e}{mu }^{-}{overline{nu }}_{mu }{tau }^{+}{nu}_{tau }boverline{b }left(jright)+X) processes in the multi-lepton decay channel with the results obtained using the MiNLO approach. The MiNLO method, now also implemented in the Helac-NLO framework, provides a dynamic determination of the renormalization and factorization scale settings by identifying the most likely branching histories of the additional jets through an inverse kT-clustering algorithm. The inclusion of Sudakov form factors accounts for the large logarithms that arise in the presence of widely separated scales. We perform a dedicated comparison of the two approaches at both the integrated and differential (fiducial) cross-section levels for the LHC Run II energy of (sqrt{s}=13) TeV. Finally, we present the merging of the full off-shell predictions for (ppto {e}^{+}{nu}_{e}{mu }^{-}{overline{nu }}_{mu }{tau }^{+}{nu}_{tau }boverline{b }+X), (ppto {e}^{+}{nu}_{e}{mu }^{-}{overline{nu }}_{mu }{tau }^{+}{nu}_{tau }boverline{b }j+X) and (ppto {e}^{+}{nu}_{e}{mu }^{-}{overline{nu }}_{mu }{tau }^{+}{nu}_{tau }boverline{b }jj), with the aim of improving the description of the underlying (ppto {e}^{+}{nu}_{e}{mu }^{-}{overline{nu }}_{mu }{tau }^{+}{nu}_{tau }boverline{b }+X) process.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 10","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2026)190.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189872","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

Hagedorn temperature from holography: rotating and charged systems 全息摄影的哈格多恩温度：旋转和带电系统

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-16 DOI: 10.1007/JHEP10(2026)182

Francesco Bigazzi, Tommaso Canneti, Federico Castellani, Aldo L. Cotrone

{"title":"Hagedorn temperature from holography: rotating and charged systems","authors":"Francesco Bigazzi, Tommaso Canneti, Federico Castellani, Aldo L. Cotrone","doi":"10.1007/JHEP10(2026)182","DOIUrl":"10.1007/JHEP10(2026)182","url":null,"abstract":"Using the string/field theory correspondence as a tool, we study the dependence of the Hagedorn temperature of strongly coupled, planar gauge theories on angular velocities and chemical potentials for U(1) global currents. Our results are obtained from an interplay of world-sheet semiclassical quantization methods and target space low energy effective ones. The Hagedorn temperature is given as an expansion in the inverse (large) ’t Hooft coupling limit. Working to quadratic order in the fluctuations, the world-sheet analysis provides the leading, the next-to-leading and part of the next-to-next-to leading order terms. In particular, it captures the NNLO log 2 terms which are due to the contributions of non-zero modes to the zero-point energy. These modes are not accounted for by the effective approach, within which they have to be included by hand using suitable educated guesses. On the other hand, the effective methods allow to compute in a relatively easy way the missing NNLO pieces (and even further subleading corrections), which could be accounted for from the world-sheet approach only working at quartic (or higher) order in the fluctuations. We present general results and several examples in various dimensions, including both confining models and conformal field theories on spheres (such as ( mathcal{N} ) = 4 SYM and ABJM) dual to string theories on global AdS spaces.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 10","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2026)182.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189497","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

Higgs scattering and entanglement in SMEFT SMEFT中的希格斯散射和纠缠

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-16 DOI: 10.1007/JHEP10(2026)191

Hyun Min Lee, Rojalin Padhan

{"title":"Higgs scattering and entanglement in SMEFT","authors":"Hyun Min Lee, Rojalin Padhan","doi":"10.1007/JHEP10(2026)191","DOIUrl":"10.1007/JHEP10(2026)191","url":null,"abstract":"We regard the weak isospin of the Higgs doublet as a qubit and classify the entanglement measures for the Higgs scattering in the Standard Model Effective Field Theories (SMEFT) and their Ultra-Violet complete models. We consider Higgs scattering in the unbroken phase of electroweak symmetry. Treating the final state as a momentum-isospin bipartite system, we obtain von Neumann and linear entropies to quantify momentum-isospin correlation. From the momentum reduced state, we calculate the concurrence, which measures the entanglement between the two isospins. Both quantities are set by the isospin singlet and triplet scattering amplitudes, and hence by the Wilson coefficients of the dimension-6 and dimension-8 Higgs operators. We find that the von Neumann entropy grows as a function of the total energy in SMEFT as compared to the SM case, but it undergoes a cancellation in the medium energy below the cut-off scale due to the interference effects between the dimension-4 and dimension-8 operators, in particular, when the effective interactions stem dominantly from a massive graviton. Assuming the dominance of dimension-8 operators, we find the conditions for entanglement suppression/generation in the forward or backward scatterings or across all the kinematics. We also show the correlations between the entanglement suppression and the positivity bounds in the forward limit.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 10","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2026)191.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189498","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

Emergent closed universes in symmetric orbifold CFTs 对称轨道cft中的涌现封闭宇宙

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-16 DOI: 10.1007/JHEP10(2026)188

Akihiro Miyata, Keigo Horikoshi, Hiromasa Tajima, Tomonori Ugajin

{"title":"Emergent closed universes in symmetric orbifold CFTs","authors":"Akihiro Miyata, Keigo Horikoshi, Hiromasa Tajima, Tomonori Ugajin","doi":"10.1007/JHEP10(2026)188","DOIUrl":"10.1007/JHEP10(2026)188","url":null,"abstract":"We identify sectors in large N symmetric orbifold CFTs, whose properties are similar to those of closed universes. Starting from tensor product states built out of a finite dimensional low energy subspace of the seed theory, we show that the large N Hilbert space decomposes into superselection sectors labeled by occupation number distributions. Before imposing the orbifold gauge constraint, these sectors have exponentially large dimensions, and the maximally entropic sector dominates the ungauged Hilbert space. We argue that this sector exhibits several characteristic features expected of a closed universe Hilbert space: product states become indistinguishable from a mixed state at the level of simple correlators, and the associated operator algebra is naturally a hyperfinite type II1 von Neumann algebra. We then impose the SN gauge constraint. The large gauge redundancy drastically reduces the number of independent states. In particular, in the large N limit, the dimension of the physical Hilbert space grows only polynomially with N. Consequently, each superselection sector after imposing the constraint is one dimensional in this limit. This is qualitatively similar to the behavior suggested by gravitational path integral calculations with wormholes. Within this proposed closed universe interpretation, we show why, in this setup, the Hartle-Hawking type semiclassical approximation for the dominant closed universe fails to reproduce the CFT results. Nevertheless, the dominant saddle point approximation for gravitational path integral calculation may be reconstructed once the CFT degrees of freedom are coupled to external observer degrees of freedom.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 10","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2026)188.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189873","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

S-duality, boundary states, and higher-form symmetries on ALE spaces ALE空间上的s对偶性、边界态和高形式对称性

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-16 DOI: 10.1007/JHEP10(2026)183

Mohamed M. Anber

{"title":"S-duality, boundary states, and higher-form symmetries on ALE spaces","authors":"Mohamed M. Anber","doi":"10.1007/JHEP10(2026)183","DOIUrl":"10.1007/JHEP10(2026)183","url":null,"abstract":"We study Abelian S-duality of Maxwell theory on A-type asymptotically locally Euclidean (ALE) spaces. Unlike on closed four-manifolds, the Maxwell path integral on an ALE space is not naturally a scalar partition function. Rather, it decomposes into theta-function blocks labeled by flat U (1) holonomy sectors on the asymptotic lens-space boundary. We interpret these blocks as components of the Hilbert-space boundary state prepared by the ALE path integral. With this interpretation, the apparent failure of ordinary modularity is replaced by vector-valued modular covariance under the action of the modular group. We test this picture explicitly for Eguchi-Hanson space by gluing it to its orientation reversal. The resulting closed four-manifold is diffeomorphic to S2 × S2, and the natural pairing of the two ALE boundary states reproduces the standard Maxwell partition function on S2 × S2. We then refine the construction by turning on electric and magnetic 1-form symmetry backgrounds. In their presence, the ALE theta blocks are not ordinary functions, but sections of a line bundle over the Cartan torus associated with the AN−1 root lattice, reflecting the mixed electric-magnetic 1-form anomaly. We also discuss gauging discrete ℤk subgroups of the 1-form symmetries and show that the vector-valued boundary-state structure remains the natural covariant framework after gauging. In this sense, ALE spaces behave as chiral building blocks for four-dimensional Maxwell theory: individual ALE blocks carry sector-resolved boundary data, while gluing pairs these sectors to produce an ordinary closed-manifold partition function, much like the pairing of left- and right-moving conformal blocks in two-dimensional CFT.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 10","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2026)183.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189500","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

Black hole photon rings saturate the quantum chaos bound 黑洞光子环使量子混沌界饱和

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-16 DOI: 10.1007/JHEP10(2026)184

D. Giataganas, G. F. Giudice, A. Kehagias, F. Quevedo, A. Riotto

引用次数: 0

Scattering amplitudes and resonant processes in QED with chiral chemical potential and chiral magnetic conductivity 具有手性化学势和手性导电性的QED散射振幅和共振过程

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-16 DOI: 10.1007/JHEP10(2026)189

Jonathan D. Kroth, Kirill Tuchin

引用次数: 0

Spacelike and timelike structure functions: a dispersive crossing relation 类空与类时结构函数：色散交叉关系

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-16 DOI: 10.1007/JHEP10(2026)187

Aniruddha Venkata

引用次数: 0

Exploring the SMEFT landscape: Bayesian model selection for indirect discovery 探索SMEFT景观：间接发现的贝叶斯模型选择

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-15 DOI: 10.1007/JHEP10(2026)169

Luca Mantani

{"title":"Exploring the SMEFT landscape: Bayesian model selection for indirect discovery","authors":"Luca Mantani","doi":"10.1007/JHEP10(2026)169","DOIUrl":"10.1007/JHEP10(2026)169","url":null,"abstract":"We develop a framework for indirect discovery in the Standard Model Effective Field Theory (SMEFT) based on Bayesian model selection over operator subsets. We argue that SMEFT should be understood as a structured space of competing hypotheses rather than a single high-dimensional model, with each operator subset corresponding to a physically distinct low-energy realisation of new dynamics. Bayesian inference is applied at the level of model space itself, assigning posterior probabilities to operator subsets and marginal inclusion probabilities to individual operators. A genetic algorithm efficiently navigates the high-dimensional discrete model space, concentrating evaluations in the high-posterior region, while the Bayesian Information Criterion provides a tractable approximation to the Bayesian evidence. We apply this framework to a dataset comprising electroweak precision observables from LEP and Higgs, top-quark, and diboson measurements from LHC Run 2, at both linear and quadratic order in the Wilson coefficients, with one-loop renormalisation group evolution systematically included. The analysis finds no statistically significant evidence for any departure from the SM, and demonstrates that Bayesian Model Average posteriors on Wilson coefficients carry substantially improved characterisation potential compared to traditional global fits. The operator correlation matrix encodes the relational structure of the model posterior, identifying operator pairs that co-appear in high-posterior models and flat directions where additional measurements would be most valuable. The sensitivity of all results to the choice of matching scale μ0 is assessed, and its promotion to a continuous parameter of inference is identified as a natural extension of the framework.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2026 10","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP10(2026)169.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189472","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

Logarithmically-accurate final-state showers with massive quarks 具有大质量夸克的对数精确的最终状态阵雨

IF 5.5 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2026-10-15 DOI: 10.1007/JHEP10(2026)161

Melissa van Beekveld, Silvia Ferrario Ravasio, Alba Soto-Ontoso, Gregory Soyez, Rob Verheyen

引用次数: 0