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

Tetraquarks at large M and large N 大 M 和大 N 的四夸克

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)034

Héloïse Allaman, Majid Ekhterachian, Filippo Nardi, Riccardo Rattazzi, Stefan Stelzl

引用次数: 0

Exploring replica-Potts CFTs in two dimensions 探索二维中的复制-波茨 CFT

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)030

Stefanos R. Kousvos, Alessandro Piazza, Alessandro Vichi

{"title":"Exploring replica-Potts CFTs in two dimensions","authors":"Stefanos R. Kousvos, Alessandro Piazza, Alessandro Vichi","doi":"10.1007/JHEP11(2024)030","DOIUrl":"10.1007/JHEP11(2024)030","url":null,"abstract":"We initiate a numerical conformal bootstrap study of CFTs with Sn ⋉ (SQ)n global symmetry. These include CFTs that can be obtained as coupled replicas of two-dimensional critical Potts models. Particular attention is paid to the special case S3 ⋉ (S3)3, which governs the critical behaviour of three coupled critical 3-state Potts models, a multi-scalar realisation of a (potentially) non-integrable CFT in two dimensions. The model has been studied in earlier works using perturbation theory, transfer matrices, and Monte Carlo simulations. This work represents an independent non-perturbative analysis. Our results are in agreement with previous determinations: we obtain an allowed peninsula within parameter space for the scaling dimensions of the three lowest-lying operators in the theory, which contains the earlier predictions for these scaling dimensions. Additionally, we derive numerous bounds on admissible scaling dimensions in the theory, which are compatible with earlier results. Our work sets the necessary groundwork for a future precision study of these theories in the conformal bootstrap.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 11","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP11(2024)030.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595471","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

In-medium gluon radiation spectrum with all-order resummation of multiple scatterings in longitudinally evolving media 纵向演化介质中多重散射的全阶重和介质内胶子辐射谱

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)025

Carlota Andres, Liliana Apolinário, Fabio Dominguez, Marcos Gonzalez Martinez

{"title":"In-medium gluon radiation spectrum with all-order resummation of multiple scatterings in longitudinally evolving media","authors":"Carlota Andres, Liliana Apolinário, Fabio Dominguez, Marcos Gonzalez Martinez","doi":"10.1007/JHEP11(2024)025","DOIUrl":"10.1007/JHEP11(2024)025","url":null,"abstract":"Over the past years, there has been a sustained effort to systematically enhance our understanding of medium-induced emissions occurring in the quark-gluon plasma, driven by the ultimate goal of advancing our comprehension of jet quenching phenomena. To ensure meaningful comparisons between these new calculations and experimental data, it becomes crucial to model the interplay between the radiation process and the evolution of the medium parameters, typically described by a hydrodynamical simulation. This step presents particular challenges when dealing with calculations involving the resummation of multiple scatterings, which have been shown to be necessary for achieving an accurate description of the in-medium emission process. In this paper, we extend our numerical calculations of the fully-resummed gluon spectrum to account for longitudinally expanding media. This new implementation allows us to quantitatively assess the accuracy of previously proposed scaling laws that establish a correspondence between an expanding medium and a “static equivalent”. Additionally, we show that such scaling laws yield significantly improved results when the static reference case is replaced by an expanding medium with the temperature following a simple power-law decay. Such correspondence will enable the application of numerical calculations of medium-induced energy loss in realistic evolving media for a broader range of phenomenological studies.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 11","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP11(2024)025.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595481","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

Electroweak corrections to Higgs boson pair production: the top-Yukawa and self-coupling contributions 希格斯玻色子成对产生的电弱修正：顶玉川和自耦合贡献

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)040

G. Heinrich, S. P. Jones, M. Kerner, T. W. Stone, A. Vestner

引用次数: 0

Crescendo beyond the horizon: more gravitational waves from domain walls bounded by inflated cosmic strings 地平线外的峰回路转：来自以膨胀宇宙弦为边界的域壁的更多引力波

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)032

Yunjia Bao, Keisuke Harigaya, Lian-Tao Wang

{"title":"Crescendo beyond the horizon: more gravitational waves from domain walls bounded by inflated cosmic strings","authors":"Yunjia Bao, Keisuke Harigaya, Lian-Tao Wang","doi":"10.1007/JHEP11(2024)032","DOIUrl":"10.1007/JHEP11(2024)032","url":null,"abstract":"Gravitational-wave (GW) signals offer a unique window into the dynamics of the early universe. GWs may be generated by the topological defects produced in the early universe, which contain information on the symmetry of UV physics. We consider the case in which a two-step phase transition produces a network of domain walls bounded by cosmic strings. Specifically, we focus on the case in which there is a hierarchy in the symmetry-breaking scales, and a period of inflation pushes the cosmic string generated in the first phase transition outside the horizon before the second phase transition. We show that the GW signal from the evolution and collapse of this string-wall network has a unique spectrum, and the resulting signal strength can be sizeable. In particular, depending on the model parameters, the resulting signal can show up in a broad range of frequencies and can be discovered by a multitude of future probes, including the pulsar timing arrays and space- and ground-based GW observatories. As an example that naturally gives rise to this scenario, we present a model with the first phase transition followed by a brief period of thermal inflation driven by the field responsible for the second stage of symmetry breaking. The model can be embedded into a supersymmetric setup, which provides a natural realization of this scenario. In this case, the successful detection of the peak of the GW spectrum probes the soft supersymmetry breaking scale and the wall tension.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 11","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP11(2024)032.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598865","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

Modularity in d > 2 free conformal field theory d > 2 自由共形场论中的模块性

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)023

Yang Lei, Sam van Leuven

引用次数: 0

New models of SU(6) grand gauge-Higgs unification SU(6)大规规-希格斯统一的新模型

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)035

Nobuhito Maru, Ryujiro Nago

引用次数: 0

Perturbations of classical fields by gravitational shockwaves 引力冲击波对经典场的扰动

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)039

D. V. Fursaev, E. A. Davydov, I. G. Pirozhenko, V. A. Tainov

引用次数: 0

Krylov complexity of fermion chain in double-scaled SYK and power spectrum perspective 双标度 SYK 和功率谱视角下费米子链的克雷洛夫复杂性

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)026

Takanori Anegawa, Ryota Watanabe

{"title":"Krylov complexity of fermion chain in double-scaled SYK and power spectrum perspective","authors":"Takanori Anegawa, Ryota Watanabe","doi":"10.1007/JHEP11(2024)026","DOIUrl":"10.1007/JHEP11(2024)026","url":null,"abstract":"We investigate Krylov complexity of the fermion chain operator which consists of multiple Majorana fermions in the double-scaled SYK (DSSYK) model with finite temperature. Using the fact that Krylov complexity is computable from two-point functions, the analysis is performed in the limit where the two-point function becomes simple and we compare the results with those of other previous studies. We confirm the exponential growth of Krylov complexity in the very low temperature regime. In general, Krylov complexity grows at most linearly at very late times in any system with a bounded energy spectrum. Therefore, we have to focus on the initial growth to see differences in the behaviors of systems or operators. Since the DSSYK model is such a bounded system, its chaotic nature can be expected to appear as the initial exponential growth of the Krylov complexity. In particular, the time at which the initial exponential growth of Krylov complexity terminates is independent of the number of degrees of freedom. More generally, and not limited to the DSSYK model, we systematically and specifically study the Lanczos coefficients and Krylov complexity using a toy power spectrum and deepen our understanding of those initial behaviors. In particular, we confirm that the overall sech-like behavior of the power spectrum shows the initial linear growth of the Lanczos coefficient, even when the energy spectrum is bounded.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 11","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP11(2024)026.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595497","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

The g6 pressure of hot Yang-Mills theory: canonical form of the integrand 热杨-米尔斯理论的 g6 压力：积分的规范形式

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-11-06 DOI: 10.1007/JHEP11(2024)037

Pablo Navarrete, York Schröder

引用次数: 0