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arXiv 1102.0557hep-phhep-ex
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停止衰变中的提升半轻子顶

Boosted Semileptonic Tops in Stop Decays

Tilman Plehn, Michael Spannowsky, Michihisa Takeuchi

摘要:

顶级合作伙伴搜索是LHC新物理分析的关键方面之一。我们纠正了先前的声明,超对称顶部搜索的基础上衰变到半轻子顶部是没有前途的。重建提升轻子顶夸克的方向,并将其与测量到的丢失的横向能量矢量相关联,使我们能够将顶对背景减少到一个容易管理的水平。此外,重建轻子顶夸克的全部动量确定基于M_{T2}端点的终止质量。

英文摘要:

Top partner searches are one of the key aspects of new physics analyses at the LHC. We correct an earlier statement that supersymmetric top searches based on decays to semileptonic tops are not promising. Reconstructing the direction of the boosted leptonic top quark and correlating it with the measured missing transverse energy vector allows us to reduce the top pair background to an easily manageable level. In addition, reconstructing the full momentum of the leptonic top quark determines the stop mass based on an M_{T2} endpoint.

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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