Lepton flavor violating decays \(l_j\rightarrow l_i\gamma ,\) \(l_j \rightarrow 3l_i\) and \(\mu \rightarrow e+ q\bar{q}\) in the N-B-LSSM

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

The European Physical Journal C Pub Date : 2025-09-20 DOI:10.1140/epjc/s10052-025-14762-1

Rong-Zhi Sun, Shu-Min Zhao, Ming-Yue Liu, Xing-Yu Han, Song Gao, Xing-Xing Dong

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引用次数: 0

Abstract

The N-B-LSSM is an extension of the minimal supersymmetric Standard Model (MSSM) with the addition of three singlet new Higgs superfields and right-handed neutrinos, whose local gauge group is \(SU(3)_C\times SU(2)_L\times U(1)_Y\times U(1)_{B-L}.\) In the N-B-LSSM, we study lepton flavor violating decays \(l_j\rightarrow l_i\gamma ,\) \(l_j \rightarrow 3l_i\) and \(\mu \rightarrow e+ q\bar{q}\) \((j=\tau ,\mu ,~i=\mu ,e\) and \(i\ne j).\) Based on the current experimental limits, we carry out detailed parameter scanning and numerical calculation to analyse the effects of different sensitive parameters on lepton flavor violation (LFV) in the N-B-LSSM. The numerical results show that the non-diagonal elements involving the initial and final leptons are main sensitive parameters and LFV sources. This work is conducive to exploring new physics (NP) beyond the Standard Model (SM).

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N-B-LSSM中轻子风味违反衰变\(l_j\rightarrow l_i\gamma ,\)\(l_j \rightarrow 3l_i\)和\(\mu \rightarrow e+ q\bar{q}\)

N-B-LSSM是最小超对称标准模型（MSSM）的扩展，增加了三个单线态新希格斯超场和右手中微子，其局部规范群为\(SU(3)_C\times SU(2)_L\times U(1)_Y\times U(1)_{B-L}.\)。在N-B-LSSM中，我们研究了轻子违反色子衰变\(l_j\rightarrow l_i\gamma ,\)\(l_j \rightarrow 3l_i\)和\(\mu \rightarrow e+ q\bar{q}\)\((j=\tau ,\mu ,~i=\mu ,e\)和\(i\ne j).\)。我们进行了详细的参数扫描和数值计算，分析了不同敏感参数对N-B-LSSM中轻子风味违逆（LFV）的影响。数值结果表明，涉及初始轻子和最终轻子的非对角元是主要的敏感参数和LFV源。这项工作有助于探索标准模型（SM）之外的新物理（NP）。

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.