具有高自旋粒子的狄拉克费米子的三点相互作用和离散对称性

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

Journal of High Energy Physics Pub Date : 2025-05-07 DOI:10.1007/JHEP05(2025)057

Kushal Chakraborty, Aakash Kumar, Arnab Rudra, Amey Yeole

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引用次数: 0

摘要

我们构造了两个无质量狄拉克旋子与大质量高自旋玻色子之间所有可能的运动学允许的三点相互作用。在任何D时空中，相互作用都是用自旋（D−1）的高自旋不可约表示在自旋（D−2）的两个不可约自旋表示的乘积上的投影来构建的。在此基础上，我们进一步根据离散对称性C、R和t对涉及两个无质量狄拉克旋子和一个（或多个）高质量自旋(s)的理论空间进行了分类。我们发现，在任意D = 2m + 1/2m中，单个高质量自旋的相互作用理论具有“m”模2（或D模4）分类。

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Three point interaction of Dirac fermions with higher spin particles and discrete symmetries

We constructed all possible kinematically allowed three-point interactions of two massless Dirac spinors with massive higher-spin bosons. In any D spacetime, the interactions have been constructed using the projections of the higher spin irreducible representations of Spin(D − 1) over the product of two irreducible spinor representations of Spin(D − 2). Based on this analysis, we have further classified the space of theories involving two massless Dirac spinors and a single (or multiple) massive higher spin(s) based on the discrete symmetries: C, R, and T. We found that in any D = 2m + 1/2m, the interacting theories of a single massive higher spin have a “m” mod 2 (or D mod 4) classification.

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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).