Long-lived unstable superparticles at the LHC
Long-lived unstable superparticles at the LHC
复制标题
DOI：
10.1016/j.physletb.2008.09.024
复制
发表时间：
2008-07
影响因子：
4.4
通讯作者：
Koji Ishiwata;Takumi Ito;T. Moroi
中科院分区：
文献类型：
--
作者：
Koji Ishiwata;Takumi Ito;T. Moroi
在各种超对称模型中，最小超对称标准模型扇区中最轻的超粒子，我们称之为MSSM-LSP，变得不稳定。然后，我们可以在LHC实验中观察到MSSM-LSP在探测器中的衰减。我们证明，即使MSSM-LSP的衰变长度比探测器的尺寸长得多，在LHC上也有可能发现这样的衰变过程（并确定MSSM-LSP的寿命）;如果寿命短于10−（3-5）s，则相当数量的MSSM-LSP会在探测器内衰变。我们还讨论了几个动机良好的超对称模型的MSSM-LSP衰减的研究的影响。
In various models of supersymmetry (SUSY), the lightest superparticle in the minimal SUSY standard model sector, which we call MSSM-LSP, becomes unstable. Then, we may observe the decay of the MSSM-LSP in the detector at the LHC experiment. We show that the discovery of such a decay process (and the determination of the lifetime of the MSSM-LSP) may be possible at the LHC even if the decay length of the MSSM-LSP is much longer than the size of the detector; sizable number of the MSSM-LSPs decay inside the detector if the lifetime is shorter than 10−(3–5)s. We also discuss the implications of the study of the MSSM-LSP decay for several well-motivated SUSY models.