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arXiv 0810.1468hep-ph
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在LHC的H -> WW * -> 212 nu通道中发现SM希格斯玻色子的可能性

Discovery Potential for the SM Higgs Boson in the H -> WW* -> 2l2nu channel at LHC

Rebeca Gonzalez Suarez

摘要:

在早期LHC数据的背景下,提出了一个前瞻性的分析标准模型(SM)希格斯玻色子与CMS探测器的搜索。我们的目标是建立一个分析策略,包括生产的希格斯玻色子玻色子衰变在WW* 对的背景下,早期的LHC数据。希格斯质量区域之间的120-200 GeV,在这个签名被提出为高度敏感,已被研究。考虑W衰变到lnu,其中l代表e或mu。末态的特征是两个相反的符号,高横动量轻子,丢失的能量,由未被检测到的中微子携带,以及很少的喷流活动。本研究使用蒙特卡罗(MC)事件与完整的探测器模拟,包括有限的校准和对准精度预期在LHC启动。连续切割的集合应用于三个拓扑中的每一个,以便隔离超过tt和连续WW背景的信号。或者,使用人工神经网络多变量分析技术。

英文摘要:

A prospective analysis for the search of the Standard Model (SM) Higgs boson with the CMS detector is presented in the context of the early LHC data. The aim is to establish an analysis strategy for inclusive production of the Higgs boson decaying in WW* pairs in the context of the early LHC data. Higgs mass region between 120-200 GeV, in which this signature was proposed as highly sensitive, has been studied. The W decays into lnu are considered, where l stands for e or mu. The final states are characterized by two, opposite-sign, high transverse momentum leptons, missing energy, carried out by the undetected neutrinos, and little jet activity. This study uses Monte Carlo (MC) events with full detector simulation, including limited calibration and alignment precision as expected at the LHC startup. Sets of sequential cuts are applied to each of the three topologies, in order to isolate a signal which exceeds the tt and continuum WW backgrounds. Alternatively, an artificial neural network multi-variate analysis technique is used.

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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