具有 U(1) 对称性和标量暗物质的斯科生源模型

IF 5 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-04-22 DOI:10.1103/physrevd.111.075023

Anjan Kumar Barik, Najimuddin Khan, Santosh Kumar Rai

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引用次数: 0

摘要

我们研究了一个用额外的U(1)规和离散Z2对称性增强的观测模型。在我们的模型中，最轻的Z2-d粒子成为暗物质（DM）候选粒子，而微小的中微子质量则在一个环上实现。我们探索了模型的参数空间，在此空间中，DM 的遗迹密度得到了满足，正确的低能中微子观测数据也得以重现。扩展的规对称性包括一个由矢量费米子和标量组成的超越标准模型（SM）的粒子谱。我们还强调了这些粒子在大型强子对撞机上可能出现的对撞机特征。美国物理学会出版 2025

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Scotogenic model with U(1) symmetry and a scalar dark matter

We study a scotogenic model augmented with an additional U(1) gauge and a discrete Z2 symmetry. The lightest Z2-odd particle in our model becomes the dark matter (DM) candidate while tiny neutrino masses are realized at one loop. We explore the parameter space of the model for which the DM relic density is satisfied, and the correct low-energy neutrino observables are reproduced. The extended gauge symmetry includes a beyond Standard Model (SM) particle spectrum consisting of vectorlike fermions and scalars. We also highlight possible collider signatures of these particles at the LHC.

Published by the American Physical Society

2025

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.