论文标题
对特殊超对称标准模型的综述
A Review of the Exceptional Supersymmetric Standard Model
论文作者
论文摘要
局部超对称性（SUSY）为在大统一理论（GUTS）中的重力和量规相互作用的统一提供了一个有吸引力的框架。它的崩溃会导致各种模型在低能时柔软破碎的SUSY。在这篇评论文章中，我们着重于标准模型（SM）的SUSY扩展，并具有额外的u（1）_ {n}仪表对称性，该量规源于弦乐启发的E_6 Grand Unified Gauge组。只有在此u（1）延伸的最小超对称标准模型（MSSM）受E_6胆量启发的最小超对称模型（MSSM）才能超出速度，这可以为产生宇宙的Lepton和Baryon不对称的机制提供了一种机制。这种特殊的超对称标准模型（E_6SSM）的粒子含量包括E_6组的三个27个表示，以确保取消异常，以及一对SU（2）_W Doublets的量表耦合统一所需。因此，E_6SSM涉及MSSM以外的额外异国物质。我们考虑允许抑制非对角性风味过渡和快速质子衰减的对称性，以及该模型中Higgs玻色子的分解，量规对称性的分解和光谱。还讨论了由外来状态的存在引起的可能的大型强子对撞机（LHC）特征。
Local supersymmetry (SUSY) provides an attractive framework for the incorporation of gravity and unification of gauge interactions within Grand Unified Theories (GUTs). Its breakdown can lead to a variety of models with softly broken SUSY at low energies. In this review article we focus on the SUSY extension of the Standard Model (SM) with an extra U(1)_{N} gauge symmetry originating from a string-inspired E_6 grand unified gauge group. Only in this U(1) extension of the minimal supersymmetric standard model (MSSM) inspired by E_6 GUTs the right-handed neutrinos can be superheavy providing a mechanism for the generation of the lepton and baryon asymmetry of the Universe. The particle content of this exceptional supersymmetric standard model (E_6SSM) includes three 27 representations of the E_6 group, to ensure anomaly cancellation, plus a pair of SU(2)_W doublets as required for gauge coupling unification. Thus E_6SSM involves extra exotic matter beyond the MSSM. We consider symmetries that permit to suppress non-diagonal flavour transitions and rapid proton decay, as well as gauge coupling unification, the breakdown of the gauge symmetry and the spectrum of Higgs bosons in this model. The possible Large Hadron Collider (LHC) signatures caused by the presence of exotic states are also discussed.
