Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

UNSPECIFIED (2012) Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC. Physics Letters B, 716 (1). pp. 1-29. ISSN 0370-2693

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Abstract

A search for the Standard Model Higgs boson in proton–proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb−1 collected at sqrt(s)=7 TeV in 2011 and 5.8 fb−1 at sqrt(s)=8 TeV in 2012. Individual searches in the channels H→ZZ(⁎)→4ℓ, H→γγ and H→WW(⁎)→eνμν in the 8 TeV data are combined with previously published results of searches for H→ZZ(⁎), WW(⁎), bbbar and τ+τ− in the 7 TeV data and results from improved analyses of the H→ZZ(⁎)→4ℓ and H→γγ channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0 +/- 0.4(stat) +/- 0.4(sys) GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10−9, is compatible with the production and decay of the Standard Model Higgs boson.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Additional Information:
This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
?? higgs bosonlhcnuclear and high energy physics ??
ID Code:
61078
Deposited By:
Deposited On:
19 Dec 2012 10:26
Refereed?:
Yes
Published?:
Published
Last Modified:
08 Dec 2024 00:21