arXiv - PHYS - High Energy Physics - Theory最新文献_第6页

Geometric phase assisted detection of Lorentz-invariance violation from modified dispersion at high energies 从高能量下的修正色散对洛伦兹不变性违反的几何相位辅助探测

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-14 DOI: arxiv-2409.09257

Yihao Wu, Zehua Tian

{"title":"Geometric phase assisted detection of Lorentz-invariance violation from modified dispersion at high energies","authors":"Yihao Wu, Zehua Tian","doi":"arxiv-2409.09257","DOIUrl":"https://doi.org/arxiv-2409.09257","url":null,"abstract":"Many theories of quantum gravity propose Lorentz-violating dispersion\u0000relations of the form\u0000$omega_{|mathbf{k}|}=|mathbf{k}|f(|mathbf{k}|/M_star)$, which\u0000approximately recover to the Lorentz invariance,\u0000$omega_{|mathbf{k}|}approx|mathbf{k}|$, at the energy scales much below\u0000$M_star$. However, usually such a scale is assumed to be near the Planck\u0000scale, thus the feature of the Lorentz-violating theory is weak and its\u0000experimental test becomes extremely challenging. Since the geometric phase (GP)\u0000is of accumulative and sensitive nature to weak effects, here we explore the GP\u0000acquired by an inertial atomic detector that is coupled to a quantum field with\u0000this kind of Lorentz-violating dispersion. We show that for the\u0000Lorentz-violating field theory case the GP depends on the velocity of the\u0000detector, which is quite different from the Lorentz symmetry case where the GP\u0000is independent of the detector's velocity. In particular, we show that the GP\u0000may present a drastic low-energy Lorentz violation for any $f$ that dips below\u0000unity somewhere. We apply our analysis to detecting the polymer quantization\u0000motivated by loop quantum gravity, and show the detector acquires an\u0000experimentally detectable GP with the assist of detector's velocity that below\u0000current ion collider rapidities. Furthermore, the accumulative nature of GP\u0000might facilitate the relevant detection significantly.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Higher-derivative supersymmetric effective field theories 高衍生超对称有效场理论

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.08984

Osmin Lacombe, Lorenzo Paoloni, Francisco G. Pedro

引用次数: 0

Cambridge Lectures on The Standard Model 剑桥标准模型讲座

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.09211

Fernando Quevedo, Andreas Schachner

{"title":"Cambridge Lectures on The Standard Model","authors":"Fernando Quevedo, Andreas Schachner","doi":"arxiv-2409.09211","DOIUrl":"https://doi.org/arxiv-2409.09211","url":null,"abstract":"These lecture notes cover the Standard Model (SM) course for Part III of the\u0000Cambridge Mathematical Tripos, taught during the years 2020-2023. The course\u0000comprised 25 lectures and 4 example classes. Following a brief historical\u0000introduction, the SM is constructed from first principles. We begin by\u0000demonstrating that essentially only particles with spin/helicity $0,\u0000frac{1}{2}, 1, frac{3}{2}, 2$ can describe matter and interactions, using\u0000spacetime symmetries, soft theorems, gauge redundancies, Ward identities, and\u0000perturbative unitarity. The remaining freedom lies in the choice of the\u0000Yang-Mills gauge group and matter representations. Effective field theories\u0000(EFTs) are a central theme throughout the course, with the 4-Fermi interactions\u0000and chiral perturbation theory serving as key examples. Both gravity and the SM\u0000itself are treated as EFTs, specifically as the SMEFT (Standard Model Effective\u0000Field Theory). Key phenomenological aspects of the SM are covered, including\u0000the Higgs mechanism, Yukawa couplings, the CKM matrix, the GIM mechanism,\u0000neutrino oscillations, running couplings, and asymptotic freedom. The\u0000discussion of anomalies and their non-trivial cancellations in the SM is\u0000detailed. Simple examples of calculations, such as scattering amplitudes and\u0000decay rates, are provided. The course concludes with a brief overview of the\u0000limitations of the SM and an introduction to the leading proposals for physics\u0000beyond the Standard Model.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"197 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Constraints on RG Flows from Protected Operators 对来自受保护运营商的 RG 流量的限制

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.09006

Florent Baume, Alessio Miscioscia, Elli Pomoni

引用次数: 0

Optical Aspect of Cosmological Black Holes in Einstein-Maxwell-Dilaton Theory 爱因斯坦-麦克斯韦尔-迪拉顿理论中宇宙学黑洞的光学方面

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.08903

Hajar Belmahi, Amin Mohamed Rbah

{"title":"Optical Aspect of Cosmological Black Holes in Einstein-Maxwell-Dilaton Theory","authors":"Hajar Belmahi, Amin Mohamed Rbah","doi":"arxiv-2409.08903","DOIUrl":"https://doi.org/arxiv-2409.08903","url":null,"abstract":"Motivated by string theory scenarios, we study the optical aspect of AdS\u0000black holes in Einstein-Maxwell-dilaton theory. Concretely, we investigate and\u0000examine the shadows and the deflection angle of light rays by such cosmological\u0000black holes. Concerning the shadows, we first deal with the non-rotating\u0000solutions. In particular, we obtain perfect circular shadows where their sizes\u0000are controlled by the involved parameter including the charge and the\u0000cosmological constant. Combining the Newman-Janis formalism and the\u0000Hamilton-Jacobi algorithm, we approach the rotating black hole solutions using\u0000real curves. Among others, we observe that the size and shape shadows depend on\u0000the rotating parameter and the remaining ones. To make contact with Event\u0000Horizon Telescope observational data, we show that certain constrains should be\u0000imposed on such parameters. Then, we study the behaviors of the light rays near\u0000to such cosmological black holes by computing the deflection angle in terms of\u0000Einstein-Maxwell-dilaton theory parameters. Specifically, we reveal that the\u0000effect of the cosmological constant on the deflection angle changes as the\u0000coupling between the black hole parameters is adjusted. When the rotation\u0000parameter is introduced, we observe this effect becomes similar to that of the\u0000cosmological constant in ordinary AdS black holes.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fermion masses and mixings in the supersymmetric Pati-Salam landscape from Intersecting D6-Branes 超对称帕蒂-萨拉姆图景中的费米子质量和混合来自相交的 D6-Branes

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.09110

Mudassar Sabir, Tianjun Li, Adeel Mansha, Zhi-Wei Wang

{"title":"Fermion masses and mixings in the supersymmetric Pati-Salam landscape from Intersecting D6-Branes","authors":"Mudassar Sabir, Tianjun Li, Adeel Mansha, Zhi-Wei Wang","doi":"arxiv-2409.09110","DOIUrl":"https://doi.org/arxiv-2409.09110","url":null,"abstract":"Recently, the complete landscape of three-family supersymmetric Pati-Salam\u0000models from intersecting D6-branes on a type IIA\u0000$mathbb{T}^6/(mathbb{Z}_2times mathbb{Z}_2)$ orientifold has been\u0000enumerated consisting of 33 independent models with distinct gauge coupling\u0000relations at the string scale. Here, we study the phenomenology of all such\u0000models by providing the detailed particle spectra and the analysis of the\u0000possible 3-point and the 4-point Yukawa interactions in order to accommodate\u0000all standard-model fermion masses and mixings. We find that only 17 models\u0000contain viable Yukawa textures to explain quarks masses, charged-leptons'\u0000masses, neutrino-masses, quarks' mixings and leptons' mixings. These viable\u0000models split into four classes, viz. a single model with 3 Higgs fields from\u0000the bulk and sixteen models with either 6, 9 or 12 Higgs from the\u0000$mathcal{N}=2$ sector. The models perform successively better with the\u0000increasing number of Higgs pairs. Remarkably, the class of models with 12 Higgs\u0000naturally predicts the Dirac-type neutrino masses in normal ordering consistent\u0000with both the experimental constraints as well as the bounds from the swampland\u0000program.","PeriodicalId":501339,"journal":{"name":"arXiv - PHYS - High Energy Physics - Theory","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Black Hole as a Harmonic Oscillator from the Perspective of the Minimum Uncertainty Approach 从最小不确定性方法的角度看作为谐振子的量子黑洞

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.09181

Octavio Obregón, Wilfredo Yupanqui

引用次数: 0

Universal thermalization dynamics in (1+1)d QFTs (1+1)d QFT 中的通用热化动力学

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.09112

Richard A. Davison, Luca V. Delacretaz

引用次数: 0

EW corrections and Heavy Boson Radiation at a high-energy muon collider 高能μ介子对撞机的 EW 校正与重波子辐射

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.09129

Yang Ma, Davide Pagani, Marco Zaro

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Towards a unified description of hadron scattering at all energies 实现对所有能量下强子散射的统一描述

arXiv - PHYS - High Energy Physics - Theory Pub Date : 2024-09-13 DOI: arxiv-2409.09172

Dominik Stamen, Daniel Winney, Arkaitz Rodas, Cesar Fernandez-Ramirez, Vincent Mathieu, Gloria Montana, Alessandro Pilloni, Adam P. Szczepaniak

引用次数: 0