Stau kinks at the LHC
Stau kinks at the LHC
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DOI：
10.1007/jhep12(2011)041
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发表时间：
2011-03
影响因子：
5.4
通讯作者：
S. Asai;Y. Azuma;Motoi Endo;K. Hamaguchi;S. Iwamoto
中科院分区：
文献类型：
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作者：
S. Asai;Y. Azuma;Motoi Endo;K. Hamaguchi;S. Iwamoto
在一些超对称模型中预测了带电径迹的扭结特征，它是对撞机实验中非常有特征的信号。我们用两个模型研究了LHC的扭结签名，一个是具有引力子LSP和stau NLSP的SUSY模型，另一个是具有stau（N）LSP的R-宇称违背的SUSY模型。我们发现，当衰变长度为mm时，在很宽的超对称性参数范围内都能发现大量的扭结事件。本文还讨论了通过识别扭折径迹的子粒子来判别模型的方法。
The kink signature of charged tracks is predicted in some SUSY models, and it is very characteristic signal at collider experiments. We study the kink signature at LHC using two models, SUSY models with a gravitino LSP and a stau NLSP, and R-parity violating SUSY models with a stau (N) LSP. We find that a large number of kink events can be discovered in a wide range of the SUSY parameters, when the decay length ismm. Model discrimination by identifying the daughter particles of the kink tracks is also discussed.