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arXiv 0909.5407hep-ph
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R-宇称违背mSUGRA模型中所有可能的Li超对称粒子及其在LHC上的信号

All Possible Lightest Supersymmetric Particles in R-Parity Violating mSUGRA Models and their Signals at the LHC

H. K. Dreiner, S. Grab

摘要:

我们考虑了在大统一尺度下具有额外的R-宇称破坏算子的最小超引力模型。这可以改变超对称光谱,导致一方面超中微子,smuon或squark作为最轻的超对称粒子(LSP)。另一方面,重新打开宽参数区域,其中标量tau是LSP。了解LSP的性质是至关重要的,因为在对撞机实验中,超对称粒子通常会级联衰变到LSP。我们详细调查的条件导致非中性伴子LSP的情况。我们还提出了一些典型的LHC签名。

英文摘要:

We consider minimal supergravity (mSUGRA) models with an additional R-parity violating operator at the grand unification scale. This can change the supersymmetric spectrum leading on the one hand to a sneutrino, smuon or squark as the lightest supersymmetric particle (LSP). On the other hand, a wide parameter region is reopened, where the scalar tau is the LSP. It is vital to know the nature of the LSP, because supersymmetric particles normally cascade decay down to the LSP at collider experiments. We investigate in detail the conditions leading to non-neutralino LSP scenarios. We also present some typical LHC signatures.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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