Journal of High Energy Physics最新文献_第6页

From ray to spray: augmenting amplitudes and taming fast oscillations in fully numerical neutrino codes 从射线到喷雾:在全数值中微子代码中增强振幅和驯服快速振荡

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-07 DOI: 10.1007/jhep11(2023)033

Michele Maltoni

引用次数: 0

Fermions with SU(1, n) spacetime symmetry 具有SU(1,n)时空对称性的费米子

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-07 DOI: 10.1007/jhep11(2023)032

Joseph Smith

引用次数: 0

Cosmologically varying kinetic mixing 宇宙变化的动力学混合

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-07 DOI: 10.1007/jhep11(2023)031

Xucheng Gan, Di Liu

{"title":"Cosmologically varying kinetic mixing","authors":"Xucheng Gan, Di Liu","doi":"10.1007/jhep11(2023)031","DOIUrl":"https://doi.org/10.1007/jhep11(2023)031","url":null,"abstract":"A bstract The portal connecting the invisible and visible sectors is one of the most natural explanations of the dark world. However, the early-time dark matter production via the portal faces extremely stringent late-time constraints. To solve such tension, we construct the scalar-controlled kinetic mixing varying with the ultralight CP-even scalar’s cosmological evolution. To realize this and eliminate the constant mixing, we couple the ultralight scalar within 10 − 33 eV ≲ m 0 ≪ eV with the heavy doubly charged messengers and impose the ℤ 2 symmetry under the dark charge conjugation. Via the varying mixing, the keV – MeV dark photon dark matter is produced through the early-time freeze-in when the scalar is misaligned from the origin and free from the late-time exclusions when the scalar does the damped oscillation and dynamically sets the kinetic mixing. We also find that the scalar-photon coupling emerges from the underlying physics, which changes the cosmological history and provides the experimental targets based on the fine-structure constant variation and the equivalence principle violation. To ensure the scalar naturalness, we discretely re-establish the broken shift symmetry by embedding the minimal model into the ℤ N -protected model. When N ~ 10, the scalar’s mass quantum correction can be suppressed much below 10 − 33 eV.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"73 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135539545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Phase space renormalization and finite BMS charges in six dimensions 六维相空间重整化与有限BMS电荷

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-07 DOI: 10.1007/jhep11(2023)034

Federico Capone, Prahar Mitra, Aaron Poole, Bilyana Tomova

{"title":"Phase space renormalization and finite BMS charges in six dimensions","authors":"Federico Capone, Prahar Mitra, Aaron Poole, Bilyana Tomova","doi":"10.1007/jhep11(2023)034","DOIUrl":"https://doi.org/10.1007/jhep11(2023)034","url":null,"abstract":"A bstract We perform a complete and systematic analysis of the solution space of six-dimensional Einstein gravity. We show that a particular subclass of solutions — those that are analytic near $$ mathcal{I} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>I</mml:mi> </mml:math> + — admit a non-trivial action of the generalised Bondi-Metzner-van der Burg-Sachs (GBMS) group which contains infinite-dimensional supertranslations and superrotations. The latter consists of all smooth volume-preserving Diff×Weyl transformations of the celestial S 4 . Using the covariant phase space formalism and a new technique which we develop in this paper (phase space renormalization), we are able to renormalize the symplectic potential using counterterms which are local and covariant . The Hamiltonian charges corresponding to GBMS diffeomorphisms are non-integrable. We show that the integrable part of these charges faithfully represent the GBMS algebra and in doing so, settle a long-standing open question regarding the existence of infinite-dimensional asymptotic symmetries in higher even dimensional non-linear gravity. Finally, we show that the semi-classical Ward identities for supertranslations and superrotations are precisely the leading and subleading soft-graviton theorems respectively.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"79 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135539978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Conformal Renormalization of topological black holes in AdS6 AdS6中拓扑黑洞的保角重整化

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-07 DOI: 10.1007/jhep11(2023)036

Giorgos Anastasiou, Ignacio J. Araya, Cristóbal Corral, Rodrigo Olea

引用次数: 1

Averaging over codes and an SU(2) modular bootstrap 平均代码和一个SU(2)模引导

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-07 DOI: 10.1007/jhep11(2023)035

Johan Henriksson, Brian McPeak

引用次数: 0

Understanding the open string pair production of the Dp/D0 system 了解Dp/D0系统的开放管柱对生产

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-06 DOI: 10.1007/jhep11(2023)019

J. X. Lu

引用次数: 2

Stability of electroweak vacuum and supersymmetric contribution to muon g − 2 电弱真空的稳定性及其对μ子g−2的超对称贡献

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-06 DOI: 10.1007/jhep11(2023)027

So Chigusa, Takeo Moroi, Yutaro Shoji

引用次数: 0

Connecting Euclidean to light-cone correlations: from flavor nonsinglet in forward kinematics to flavor singlet in non-forward kinematics 连接欧几里得和光锥相关性:从正运动学中的风味非单线态到非正运动学中的风味单线态

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-06 DOI: 10.1007/jhep11(2023)021

Fei Yao, Yao Ji, Jian-Hui Zhang

引用次数: 2

Sharpening the A → Z(*)h signature of the Type-II 2HDM at the LHC through advanced Machine Learning 利用先进的机器学习技术锐化LHC ii型2HDM的A→Z(*)h特征

1区物理与天体物理

Journal of High Energy Physics Pub Date : 2023-11-06 DOI: 10.1007/jhep11(2023)020

W. Esmail, A. Hammad, S. Moretti

{"title":"Sharpening the A → Z(*)h signature of the Type-II 2HDM at the LHC through advanced Machine Learning","authors":"W. Esmail, A. Hammad, S. Moretti","doi":"10.1007/jhep11(2023)020","DOIUrl":"https://doi.org/10.1007/jhep11(2023)020","url":null,"abstract":"A bstract The A → Z (*) h decay signature has been highlighted as possibly being the first testable probe of the Standard Model (SM) Higgs boson discovered in 2012 ( h ) interacting with Higgs companion states, such as those existing in a 2-Higgs Doublet Model (2HDM), chiefly, a CP-odd one ( A ). The production mechanism of the latter at the Large Hadron Collider (LHC) takes place via $$ boverline{b} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>b</mml:mi> <mml:mover> <mml:mi>b</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> -annihilation and/or gg -fusion, depending on the 2HDM parameters, in turn dictated by the Yukawa structure of this Beyond the SM (BSM) scenario. Among the possible incarnations of the 2HDM, we test here the so-called Type-II, for a twofold reason. On the one hand, it intriguingly offers two very distinct parameter regions compliant with the SM-like Higgs measurements, i.e., where the so-called ‘SM limit’ of the 2HDM can be achieved. On the other hand, in both configurations, the AZh coupling is generally small, hence the signal is strongly polluted by backgrounds, so that the exploitation of Machine Learning (ML) techniques becomes extremely useful. In this paper, we show that the application of advanced ML implementations can be decisive in establishing such a signal. This is true for all distinctive kinematical configurations involving the A → Z (*) h decay, i.e., below threshold ( m A < m Z + m h ), at its maximum ( m Z + m h < m A < 2 m t ) and near the onset of $$ toverline{t} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>t</mml:mi> <mml:mover> <mml:mi>t</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> pair production ( m A ≈ 2 m t ), for which we propose Benchmark Points (BPs) for future phenomenological analyses.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"12 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135679879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0