Abstract

The presence of the 125-GeV Higgs boson in the particle spectrum of the minimal supersymmetric (SUSY) standard model (MSSM) implies that the SUSY breaking scale has to be larger than \(1\text{ TeV}\). In this case some fine-tuning of the MSSM parameters is needed to get so light Higgs state. In a certain part of the parameter space of the simplest extension of the MSSM—next-to-minimal supersymmetric Standard Model (NMSSM) the restrictions on \(M_{S}\) are weaker than in the MSSM. This part of the NMSSM parameter space leads to some predictions for the spectrum of the Higgs bosons which are considered in this paper. The possible manifestations of new Higgs states at the LHC experiments are also discussed. The analysis performed in this article indicates that light exotic states in the \(U(1)\) extensions of the MSSM may result in the nonstandard decays of the 125-GeV Higgs boson.

中文翻译：

---

希格斯玻色子在SUSY SM扩展中的质量约为125 GeV

摘要

最小超对称（SUSY）标准模型（MSSM）的粒子光谱中存在125 GeV希格斯玻色子意味着SUSY断裂尺度必须大于\（1 \ text {TeV} \）。在这种情况下，需要对MSSM参数进行一些微调，以使其达到较轻的希格斯状态。在MSSM最简单扩展的参数空间的某个部分（最小到超对称标准模型（NMSSM））中，对\（M_ {S} \）的限制比MSSM中的弱。NMSSM参数空间的这一部分导致对本文考虑的希格斯玻色子光谱的一些预测。还讨论了在大型强子对撞机实验中新的希格斯状态的可能表现。本文进行的分析表明，MSSM的\（U（1）\）扩展可能会导致125 GeV希格斯玻色子的非标准衰减。