Journal of High Energy Physics最新文献_第3页

A critical study of the Monte Carlo replica method

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)064

Mark N. Costantini, Maeve Madigan, Luca Mantani, James M. Moore

引用次数: 0

Spontaneous CP breaking in a QCD-like theory

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)066

Csaba Csáki, Maximilian Ruhdorfer, Taewook Youn

{"title":"Spontaneous CP breaking in a QCD-like theory","authors":"Csaba Csáki, Maximilian Ruhdorfer, Taewook Youn","doi":"10.1007/JHEP12(2024)066","DOIUrl":"10.1007/JHEP12(2024)066","url":null,"abstract":"We examine the phase structure of a QCD-like theory at ( overline{theta} ) = π obtained from supersymmetric SU(N) QCD perturbed by a small amount of supersymmetry breaking via anomaly mediation (AMSB QCD). The spectrum of this theory matches that of QCD at the massless level, though the superpartners are not decoupled. In this theory it is possible to nail down the phase structure at ( overline{theta} ) = π as a function of the quark masses and the number of flavors F. For one flavor we find that there is a critical quark mass, below which CP is unbroken, while above the critical mass CP is spontaneously broken. At the critical mass there is a second-order phase transition along with a massless η′. We are able to analytically solve for the minima and the critical mass for N = 2, 3 as well as for the large N limit, while for other N one can find numerical results. For two flavors, we find that CP is always broken as long as the quark masses are equal and non-zero, however there is a non-trivial phase boundary for unequal quark masses, which we find numerically. For F ≥ 3 we obtain an intricate phase boundary which reproduces the various quark mass limits. All our results are in agreement with the predictions of refs. [1–5] for ordinary QCD that were based on anomaly matching arguments for generalized symmetries and the effective chiral Lagrangian. We also briefly comment on the domain wall solutions first discussed by Draper [6], and are able to present analytic results for the simplest case of SU(2) with one flavor.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)066.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798479","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

Towards unifying perturbative and Holographic Light-Front QCD via holomorphic coupling

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)075

César Ayala, Gorazd Cvetič

{"title":"Towards unifying perturbative and Holographic Light-Front QCD via holomorphic coupling","authors":"César Ayala, Gorazd Cvetič","doi":"10.1007/JHEP12(2024)075","DOIUrl":"10.1007/JHEP12(2024)075","url":null,"abstract":"We construct a QCD coupling ( mathcal{A} )(Q2) in the Effective Charge (ECH) scheme of the canonical part d(Q2) of the (inelastic) polarised Bjorken Sum Rule (BSR) ( {overline{Gamma}}_1^{textrm{p}-textrm{n}} )(Q2). In the perturbative domain, the coupling ( mathcal{A} )(Q2) practically coincides with the perturbative coupling a(Q2) [≡ αs(Q2)/π] in the four-loop ECH renormalisation scheme. In the deep infrared (IR) regime, ( mathcal{A} )(Q2) behaves as suggested by the Holographic Light-Front QCD up to the second derivative. Furthermore, in contrast to its perturbative counterpart a(Q2), the coupling ( mathcal{A} )(Q2) is holomorphic in the entire complex Q2-plane with the exception of the negative semiaxis, reflecting the holomorphic properties of the BSR observable d(Q2) [or: ( {overline{Gamma}}_1^{textrm{p}-textrm{n}} )(Q2)] as dictated by the general principles of the Quantum Field Theory. It turns out that the obtained coupling, used as ECH, reproduces quite well the experimental data for ( {overline{Gamma}}_1^{textrm{p}-textrm{n}} )(Q2) in the entire Nf = 3 regime 0 < Q2 ≲ 5 GeV2.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)075.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810950","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 log story short: running contributions to radiative Higgs decays in the SMEFT

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)065

Christophe Grojean, Guilherme Guedes, Jasper Roosmale Nepveu, Gabriel M. Salla

{"title":"A log story short: running contributions to radiative Higgs decays in the SMEFT","authors":"Christophe Grojean, Guilherme Guedes, Jasper Roosmale Nepveu, Gabriel M. Salla","doi":"10.1007/JHEP12(2024)065","DOIUrl":"10.1007/JHEP12(2024)065","url":null,"abstract":"We investigate the renormalization of the radiative decays of the Higgs to two gauge bosons in the Standard Model Effective Field Theory at mass dimension eight. Given that these are loop-level processes, their one-loop renormalization can be phenomenologically important when triggered by operators generated through the tree-level exchange of heavy particles (assuming a weakly coupled UV model). By computing the tree-level matching conditions of all relevant extensions of the Standard Model, we demonstrate that this effect is indeed present in the h → γZ decay at dimension eight, even though it is absent at dimension six. In contrast, the h → gg and h → γγ decays can only be renormalized by operators generated by one-loop processes. For UV models with heavy vectors, this conclusion hinges on the specific form of their interaction with massless gauge bosons which is required for perturbative unitarity. We study the quantitative impact of the possible logarithmic enhancement of h → γZ, and we propose an observable to boost the sensitivity to this effect. Given the expected increased precision of next-generation high-energy experiments, this dimension-eight contribution could be large enough to be probed and could therefore give valuable clues about new physics by revealing some of its structural features manifesting first at dimension eight.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)065.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142810953","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

Kasner eons with matter: holographic excursions to the black hole singularity

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)077

Elena Cáceres, Ángel J. Murcia, Ayan K. Patra, Juan F. Pedraza

{"title":"Kasner eons with matter: holographic excursions to the black hole singularity","authors":"Elena Cáceres, Ángel J. Murcia, Ayan K. Patra, Juan F. Pedraza","doi":"10.1007/JHEP12(2024)077","DOIUrl":"10.1007/JHEP12(2024)077","url":null,"abstract":"Recent work has shown that introducing higher-curvature terms to the Einstein-Hilbert action causes the approach to a space-like singularity to unfold as a sequence of Kasner eons. Each eon is dominated by emergent physics at an energy scale controlled by higher-curvature terms of a given order, transitioning to higher-order eons as the singularity is approached. The purpose of this paper is twofold. First, we demonstrate that the inclusion of matter dramatically modifies the physics of eons compared to the vacuum case. We illustrate this by considering a family of quasi-topological gravities of arbitrary order minimally coupled to a scalar field. Second, we investigate Kasner eons in the interior of black holes with field theory duals and analyze their imprints on holographic observables. We show that the behavior of the thermal a-function, two-point functions of heavy operators, and holographic complexity can capture distinct signatures of the eons, making them promising tools for diagnosing stringy effects near black hole singularities.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)077.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142811282","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

Type II orientifold flux vacua in 3D

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)087

Álvaro Arboleya, Adolfo Guarino, Matteo Morittu

引用次数: 0

Dark matter, CEνNS and neutrino new physics scrutinized by a statistical method in Xenon-based experiments

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)074

Jian Tang, Bing-Long Zhang

引用次数: 0

Non-supersymmetric heterotic strings on a circle

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)082

Bernardo Fraiman, Mariana Graña, Héctor Parra De Freitas, Savdeep Sethi

{"title":"Non-supersymmetric heterotic strings on a circle","authors":"Bernardo Fraiman, Mariana Graña, Héctor Parra De Freitas, Savdeep Sethi","doi":"10.1007/JHEP12(2024)082","DOIUrl":"10.1007/JHEP12(2024)082","url":null,"abstract":"Motivated by a recent construction of non-supersymmetric AdS3, we revisit the O(16) × O(16) heterotic string compactified on a torus. The string one-loop potential energy has interesting dependence on the classical moduli; extrema of this potential include loci where the gauge symmetry is maximally enhanced. Focusing on the case of a circle, we use lattice embeddings to find the maximal enhancement points together with their spectra of massless and tachyonic modes. We find an extended Dynkin diagram that encodes the global structure of the moduli space, as well as all symmetry enhancements and the loci where they occur. We find 107 points of maximal enhancement with 8 that are free of tachyons. The tachyon-free points each have positive cosmological constant. We determine the profile of the potential energy near each of these points and find that one is a maximum while three are saddle points. The remaining four live at the boundary of a tachyonic region in field space. In this way, we show that every point of maximal symmetry enhancement is unstable. We further find that the curvature of this stringy potential satisfies the de Sitter swampland conjecture. Finally, we discuss the implications for constructions of AdS3.","PeriodicalId":635,"journal":{"name":"Journal of High Energy Physics","volume":"2024 12","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/JHEP12(2024)082.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142798474","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

( mathcal{O} )(rN) two-form asymptotic symmetries and renormalized charges

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)085

Matteo Romoli

引用次数: 0

Erratum to: Bootstrapping smooth conformal defects in Chern-Simons-matter theories

IF 5.4 1区物理与天体物理

Journal of High Energy Physics Pub Date : 2024-12-10 DOI: 10.1007/JHEP12(2024)083

Barak Gabai, Amit Sever, De-liang Zhong

引用次数: 0