Lepton flavor violating decays of Higgs boson in the NB-LSSM

IF 4.8 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

The European Physical Journal C Pub Date : 2025-10-07 DOI:10.1140/epjc/s10052-025-14750-5

Cai Guo, Xing-Xing Dong, Shu-Min Zhao, Zhan Cao, Jia-Peng Huo, Jin-Lei Yang, Tai-Fu Feng

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引用次数: 0

Abstract

Lepton flavor violation (LFV) represents a clear new physics (NP) signal beyond the standard model (SM). NB-LSSM, the next to minimal supersymmetric extension of the SM with local B-L gauge symmetry, includes three Higgs singlets and three generations of right-handed neutrinos in the basis of MSSM, motivated by the new definition of SM-like Higgs resultly from the introducing of three Higgs singlets which mix with the two Higgs doublets at the tree level in the NB-LSSM. We calculate LFV processes \(h\rightarrow l_i l_j\) in the mass eigenstate basis and the electroweak interaction basis separately, and the latter adopts the mass insertion approximation (MIA) method. In the suitable parameter space, we obtain the reasonable numerical results. At the same time, the corresponding constraints from the LFV rare decays \(l_j\rightarrow l_i\gamma \) are considered to analyze the numerical results.

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NB-LSSM中希格斯玻色子轻子味违反衰变

轻子味违和（LFV）是一种超越标准模型（SM）的全新物理信号。NB-LSSM是SM的下一个最小超对称扩展，具有局部B-L规范对称，在MSSM的基础上包括三个希格斯单重态和三代右手中微子，其动机是在NB-LSSM中引入了三个希格斯单重态，它们与两个希格斯双重态混合在树水平上，从而产生了类似SM的希格斯的新定义。我们分别在质量本征态基和电弱相互作用基上计算LFV过程\(h\rightarrow l_i l_j\)，后者采用质量插入近似（MIA）方法。在合适的参数空间内，得到了合理的数值结果。同时，考虑了LFV稀有衰减\(l_j\rightarrow l_i\gamma \)的约束条件，对数值结果进行了分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

期刊介绍： Experimental Physics I: Accelerator Based High-Energy Physics Hadron and lepton collider physics Lepton-nucleon scattering High-energy nuclear reactions Standard model precision tests Search for new physics beyond the standard model Heavy flavour physics Neutrino properties Particle detector developments Computational methods and analysis tools Experimental Physics II: Astroparticle Physics Dark matter searches High-energy cosmic rays Double beta decay Long baseline neutrino experiments Neutrino astronomy Axions and other weakly interacting light particles Gravitational waves and observational cosmology Particle detector developments Computational methods and analysis tools Theoretical Physics I: Phenomenology of the Standard Model and Beyond Electroweak interactions Quantum chromo dynamics Heavy quark physics and quark flavour mixing Neutrino physics Phenomenology of astro- and cosmoparticle physics Meson spectroscopy and non-perturbative QCD Low-energy effective field theories Lattice field theory High temperature QCD and heavy ion physics Phenomenology of supersymmetric extensions of the SM Phenomenology of non-supersymmetric extensions of the SM Model building and alternative models of electroweak symmetry breaking Flavour physics beyond the SM Computational algorithms and tools...etc.