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arXiv 0910.3446hep-ph
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长寿命态超对称中的电荷子重构

Chargino reconstruction in supersymmetry with long-lived staus

Sanjoy Biswas, Biswarup Mukhopadhyaya

摘要:

我们考虑一个超对称(SUSY)的情况下,包括右手中微子,其标量超伙伴之一是最轻的超对称粒子(LSP)。在这种情况下,SUSY的对撞机信号中的区别特征不是丢失能量,而是对应于次轻SUSY粒子的一对带电轨道,当它是一个状态时,如在所考虑的情况下。在此基础上,我们通过研究特定末态下的横向质量分布,探讨了重构电荷伴子的可能性。隔离中微子的横动量与此相关的各个步骤进行了概述,并确定了我们的程序工作的参数空间的区域。

英文摘要:

We consider a supersymmetric (SUSY) scenario including right-handed neutrinos, one of whose scalar superpartners is the lightest SUSY particle (LSP). The distinguishing feature in the collider signal of SUSY in such a case is not missing energy but a pair of charged tracks corresponding to the next-to- lightest SUSY particle, when it is, as in the case considered, a stau. Following up on our recent work on neutralino reconstruction in such cases, we explore the possibility of reconstructing charginos, too, through a study of transverse mass distributions in specified final states. The various steps of isolating the transverse momenta of neutrinos relevant for this are outlined, and regions of the parameter space where our procedure works are identified.

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