Interpreting a 1 fb-1 ATLAS search in the minimal anomaly mediated supersymmetry breaking model
Interpreting a 1 fb-1 ATLAS search in the minimal anomaly mediated supersymmetry breaking model
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DOI：
10.1007/jhep11(2011)132
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发表时间：
2011-11-01
影响因子：
5.4
通讯作者：
Sakurai, K.
中科院分区：
文献类型：
--
作者：
Allanach, B. C.;Khoo, T. J.;Sakurai, K.
最近的大型强子对撞机数据显着扩大了超对称粒子的排除限制，特别是在喷流和缺失的横向动量通道中。迄今为止，最新的此类数据仅通过两种不同的超对称破缺模型进行了实验解释：约束最小超对称标准模型（CMSSM）和仅包含夸克、胶子和无质量中性子的简化模型。在计算 mAMSB 中的排除限之前，我们比较了 CMSSM 预测的超对称信号事件的运动学分布和异常介导的超对称破缺 (mAMSB)。我们在同等质量极限、tan beta = 10 和 mu > 0 的 95% 置信水平下获得了夸克和胶子质量的下限 900GeV。
Recent LHC data significantly extend the exclusion limits for supersymmetric particles, particularly in the jets plus missing transverse momentum channels. The most recent such data have so far been interpreted by the experiment in only two different supersymmetry breaking models: the constrained minimal supersymmetric standard model (CMSSM) and a simplified model with only squarks and gluinos and massless neutralinos. We compare kinematical distributions of supersymmetric signal events predicted by the CMSSM and anomaly mediated supersymmetry breaking (mAMSB) before calculating exclusion limits in mAMSB. We obtain a lower limit of 900GeV on squark and gluino masses at the 95% confidence level for the equal mass limit, tan beta = 10 and mu > 0.