Tanaka, J. (2012) Search for the Standard Model Higgs boson at ATLAS. Il nuovo cimento C, 35 (6). pp. 305-312. ISSN 1826-9885
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Abstract
A search for the Standard Model Higgs boson has been performed with the ATLAS experiment at the LHC using data corresponding to integrated luminosities from 1.04 fb−1 to 4.9 fb−1 of pp collisions collected at √s = 7TeV in 2011. The Higgs boson mass ranges 112.9–115.5 GeV, 131–238GeV and 251–466 GeV are excluded at the 95% confidence level, while the range 124–519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around the mass of 126 GeV with a local significance of 3.5 standard deviations. 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 ∼ 1.4%, or 2.2 standard deviations from the background-only hypothesis.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Standard-model Higgs bosons |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 25 Apr 2020 15:19 |
| Last Modified: | 25 Apr 2020 15:19 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18005 |
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