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arXiv 0807.4987hep-ph
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LHC衰变比诺的质量测量

Mass Measurement of the Decaying Bino at the LHC

Shoji Asai, Yuya Azuma, Osamu Jinnouchi, Takeo Moroi, Satoshi Shirai, T. T. Yanagida

摘要:

在某些超对称(SUSY)模型中,中性的Wino成为最轻的超粒子,而Bino衰变为Wino和标准模型粒子。在这样的模型中,我们表明,测量的Bino质量是可能的,如果短的带电轨道(长度为O(10厘米))可以被确定为一个信号的带电Wino生产。我们特别注意的异常介导的超对称性破缺(AMSB)模型与一般形式的Kähler势,其中只有gauginos是运动学上可访问的超粒子的LHC,并讨论的意义的Bino质量测量的AMSB模型的测试。

英文摘要:

In some class of supersymmetric (SUSY) models, the neutral Wino becomes the lightest superparticle and the Bino decays into the Wino and standard-model particles. In such models, we show that the measurement of the Bino mass is possible if the short charged tracks (with the length of O(10 cm)) can be identified as a signal of the charged-Wino production. We pay particular attention to the anomaly-mediated SUSY-breaking (AMSB) model with a generic form of Kähler potential, in which only the gauginos are kinematically accessible superparticles to the LHC, and discuss the implication of the Bino mass measurement for the test of the AMSB model.

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