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arXiv 1502.07753hep-phhep-ex
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充电Slepton风味后8 TeV LHC:低能量约束和LHC SUSY简化模型分析

Charged Slepton Flavor post the 8 TeV LHC: A Simplified Model Analysis of Low-Energy Constraints and LHC SUSY Searches

Lorenzo Calibbi, Iftah Galon, Antonio Masiero, Paride Paradisi, Yael Shadmi

摘要:

由于LHC搜索的零结果与Higgs质量一起严重限制了标准模型的最小超对称扩展,我们采用一种与模型无关的方法来研究带电slepton味.我们研究了一些简化的模型,与不同的子集slepton,电弱gauginos,和希格斯诺斯,并推导出允许slepton风味的依赖性在该地区探测目前的LHC搜索,并在该地区相关的14 TeV LHC。然后,我们研究的影响,允许的风味依赖轻子加上失踪的能量搜索。在某些情况下,风味依赖显著地修改了搜索的范围。这些效应在下一次LHC运行时可能会更大,因为对于在14 TeV探测的更高质量,更大的味道混合和相对质量分裂与低能量约束是相容的。保留完整的轻子味信息可以增加搜索的灵敏度。

英文摘要:

Motivated by the null results of LHC searches, which together with the Higgs mass, severely constrain minimal supersymmetric extensions of the standard model, we adopt a model-independent approach to study charged slepton flavor. We examine a number of simplified models, with different subsets of sleptons, electroweak gauginos, and Higgsinos, and derive the allowed slepton flavor dependence in the region probed by current LHC searches, and in the region relevant for the 14 TeV LHC. We then study the impact of the allowed flavor dependence on lepton plus missing energy searches. In some cases, flavor dependence significantly modifies the reach of the searches. These effects may be even larger at the next LHC run, since for the higher masses probed at 14 TeV, larger flavor mixings and relative mass splittings are compatible with low-energy constraints. Retaining the full lepton flavor information can increase the sensitivity of the searches.

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