一个\( {\mathbbm{CP}}^2 \) SMEFT

IF 5.4 1区物理与天体物理 Q1 Physics and Astronomy

Journal of High Energy Physics Pub Date : 2025-04-23 DOI:10.1007/JHEP04(2025)180

N. S. Manton

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引用次数: 0

摘要

提出了标准模型的一个扩展，其中希格斯场在复射影平面\( {\mathbbm{CP}}^2 \)上而不是在复射影平面上。其几何形态符合U(2)≃(SU(2) × U(1))/ s2电弱规范对称。拉格朗日量中的主要项，超出了标准模型中的那些项，比一般smeft中的约束要严格得多，希格斯扇区的SO(4)对称性被轻微打破。从标准模型现象学预测的树级偏差依赖于单个大质量参数M。目前的实验数据表明M是几个TeV或更大。

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A \( {\mathbbm{CP}}^2 \) SMEFT

An extension of the Standard Model is proposed, where the Higgs field is valued in the complex projective plane \( {\mathbbm{CP}}^2 \), rather than ℂ². Its geometry is consistent with U(2) ≃ (SU(2) × U(1))/ℤ₂ electroweak gauge symmetry. The leading terms in the Lagrangian, beyond those of the Standard Model, are much more tightly constrained than in general SMEFTs, and the custodial SO(4) symmetry of the Higgs sector is mildly broken. The predicted tree-level deviations from Standard Model phenomenology depend on a single large mass parameter M. Current experimental data imply that M is a few TeV or larger.

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来源期刊

Journal of High Energy Physics 物理-物理：粒子与场物理

CiteScore

10.30

自引率

46.30%

发文量

2107

审稿时长

1.5 months

期刊介绍： The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).