Combined search for the Standard Model Higgs boson using up to 4.9 fb^鈭? of pp collision data at with the ATLAS detector at the LHC

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• 作者：ATLAS Collaboration^鈰?/sup>
• 刊名：Physics Letters B
• 出版年：2012
• 期刊代码：58_03702693
• 类别：ph
• 出版时间：29 March, 2012
• 卷：710
• 期：1
• 页码：49-66
• 文件大小：1268 K

摘要

A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb^鈭? to 4.9 fb^鈭? of pp collisions collected at is presented. The Higgs boson mass ranges 112.9-115.5 GeV, 131-238 GeV and 251-466 GeV are excluded at the 95%confidence level (CL), while the range 124-519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around with a local significance of 3.5 standard deviations (蟽). The local significances of , and , the three most sensitive channels in this mass range, are 2.8蟽, 2.1蟽 and 1.4蟽, respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110-600 GeV is estimated to be or, equivalently, 2.2蟽.