Searches for the Higgs boson with H -> WW -> 2L2 nu and H -> ZZ -> 4L at CMS

被引：0
|
作者：
Di Marco, E. [1 ]
机构：
[1] CALTECH, 1200 East Calif Blvd, Pasadena, CA 91125 USA
来源：
NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS | 2014年 / 37卷 / 01期
关键词：
D O I：
10.1393/ncc/i2014-11694-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Searches for the standard model Higgs boson using approximatively 5 fb(-1) of 7TeV and 19.6 fb(-1) of 8TeV pp collisions data collected with the CMS detector at LHC in the fully leptonic channels H -> WW -> 2L2 nu and H. ZZ. 4L have been performed. In the former channel, an excess of events is observed above background, consistent with the expectations from a Higgs boson of mass around 125 GeV with a statistical significance of 4.0 sigma. In the latter channel, the boson is observed with a local significance of 6.7 sigma, with the mass 125.8 +/- 0.5 (stat.) +/- 0.2 (syst.) GeV. In both channels the observed signal strength mu = sigma/sigma(SM), relative to the expectation for the standard model Higgs boson, is consistent with one.
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页码：222 / 226
页数：5
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