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arXiv 0909.4853hep-ph
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用M_T2和MAOS动量测量质量和自旋

Mass and Spin Measurement with M_T2 and MAOS Momentum

Won Sang Cho, Kiwoon Choi, Yeong Gyun Kim, Chan Beom Park

摘要:

本文讨论了用M_T2-kink方法测定LHC产生的暗物质WIMP及其母粒子的质量。然后我们引入一个新的运动学变量M_T2-Assisted-On-Shell(MAOS)动量,它提供了强子对撞机事件中产生一对不可见粒子的不可见粒子动量的系统近似,并将其应用于某些SUSY过程及其UED等价物,以确定胶子/KK-胶子和slepton/KK-轻子的自旋.本文还简要讨论了MAOS动量在SM Higgs质量测量中的应用。

英文摘要:

We discuss the M_T2-kink method to determine the masses of both the dark matter WIMP and its mother particle produced at the LHC. We then introduce a new kinematic variable, the M_T2-Assisted-On-Shell (MAOS) momentum, that provides a systematic approximation to the invisible particle momenta in hadron collider events producing a pair of invisible particles, and apply it to certain SUSY processes and their UED equivalents to determine the spin of gluino/KK-gluon and of slepton/KK-lepton. An application of the MAOS momentum to the SM Higgs mass measurement is briefly discussed also.

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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