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Search for supersymmetry in pp collisions at root s=8 TeV in final states with boosted W bosons and b jets using razor variables

机译:在使用剃刀变量的最终状态下搜索Root S = 8 Tev的PP碰撞中的超对称,使用剃刀变量和B喷气机

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摘要

A search for supersymmetry in hadronic final states with highly boosted W bosons and b jets is presented, focusing on compressed scenarios. The search is performed using proton-proton collision data at a center-of-mass energy of 8 TeV, collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.7 fb(-1). Events containing candidates for hadronic decays of boosted W bosons are identified using jet substructure techniques, and are analyzed using the razor variables M-R and R-2, which characterize a possible signal as a peak on a smoothly falling background. The observed event yields in the signal regions are found to be consistent with the expected contributions from standard model processes, which are predicted using control samples in the data. The results are interpreted in terms of gluino-pair production followed by their exclusive decay into top squarks and top quarks. The analysis excludes gluino masses up to 1.1 TeV for light top squarks decaying solely to a charm quark and a neutralino, and up to 700 GeV for heavier top squarks decaying solely to a top quark and a neutralino.
机译:提出了具有高升高的W玻色子和B喷射器的HOTRONIC最终状态中的超对称,专注于压缩方案。在8 TEV的质量中心处使用质子 - 质子碰撞数据来执行搜索,由LHC的CMS实验收集,对应于19.7FB(-1)的集成光度。使用喷射子结构技术鉴定了包含增强W玻色子的辐射衰变的候选者的事件,并使用剃刀变量M-R和R-2分析,其表征了可能的信号作为平稳下降的背景上的峰值。发现信号区域中观察到的事件产量与标准模型过程的预期贡献一致,这是使用数据中的控制样本预测的。结果以格鲁诺对的生产方式解释为他们的独家腐烂,进入顶部尖叫和顶部夸克。该分析不包括最高为1.1 TEV的Gluino群众,仅针对魅力夸克和中性爆炸,最高可达700个GEV,仅针对顶部夸克和中性爆裂。

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