论文标题

搜索超对称:$μν$ SSM

Searching for Supersymmetry: The $μν$SSM

论文作者

Lopez-Fogliani, Daniel E., Munoz, Carlos

论文摘要

我们回顾了从$ν$'超对称标准型号($μν$ ssm)中的“ $μ$”在搜索超对称性中所扮演的角色。首先,我们讨论了它的理论动机,即通过引入右撇子中微子的同时解决$μ$ - 和$ν$ - 问题的解决方案。后者会产生$ r $ - 违规行为(RPV),从而引起了新物理学的有趣信号。作为副产品,在$μν$ ssm中,有候选暗物质,并且可以实现电动性男性生成。然后,我们调查可以在大型强子对撞机(LHC)上测试模型的信号。除了具有Sneutrinos的Higgs扇形扩大外,我们还特别强调了最轻的超对称粒子(LSP)寿命与中微子Yukawa耦合的大小之间的紧密联系。位移的顶点和/或多孔子是可以探测的一些有趣的特征。最后,我们讨论了$μν$ ssm的可能扩展,例如将常规三联链勒顿勒伯违反耦合的传统三联元素的超级目标纳入,添加了额外的$ u(1)'$ gauge group与标准模型的对称性或标准模型的对称性,或者是higgs doublefter的重新构造的四个家族。夸克·双线超级场。

We review the role played by the '$μ$ from $ν$' supersymmetric standard model ($μν$SSM) in the search for supersymmetry. First, we discuss its theoretical motivation, that is the simultaneous solution of $μ$- and $ν$-problems through the introduction of right-handed neutrinos. The latter produces $R$-parity violation (RPV), giving rise to interesting signals of new physics. As by-products, in the $μν$SSM there are dark matter candidates, and electroweak baryogenesis can be realized. Then, we survey signals by which the model could be tested at the large hadron collider (LHC). In addition to the enlarged Higgs sector with sneutrinos, we put special emphasis in analyzing the intimate connection between the lightest supersymmetric particle (LSP) lifetime and the size of neutrino Yukawa couplings. Displaced vertices and/or multileptons are some of the interesting signatures that can be probed. Finally, we discuss possible extensions of the $μν$SSM such as the inclusion in the superpotential of the conventional trilinear lepton-number violating couplings, the addition of an extra $U(1)'$ gauge group to the symmetry of the standard model, or the reinterpretation of the Higgs doublets as a fourth family of leptons superfields motivating the existence of a fourth family of vector-like quark doublet superfields.

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