Search for a standard model Higgs boson in the H→ZZ→ℓ(+)ℓ(-)νν decay channel with the ATLAS detector

Aad, G; Abbott, B; Abdallah, J; Abdelalim, A A; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, B S; Adams, D L; Addy, T N; Adelman, J; Aderholz, M; Adomeit, S; Adragna, P; Adye, T; Aefsky, S; ... (2011). Search for a standard model Higgs boson in the H→ZZ→ℓ(+)ℓ(-)νν decay channel with the ATLAS detector. Physical review letters, 107(22), p. 221802. Ridge, N.Y.: American Physical Society 10.1103/PhysRevLett.107.221802

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A search for a heavy standard model Higgs boson decaying via H→ZZ→→ℓ(+)ℓ(-)νν, where ℓ=e, μ, is presented. It is based on proton-proton collision data at √s=7 TeV, collected by the ATLAS experiment at the LHC in the first half of 2011 and corresponding to an integrated luminosity of 1.04 fb(-1). The data are compared to the expected standard model backgrounds. The data and the background expectations are found to be in agreement and upper limits are placed on the Higgs boson production cross section over the entire mass window considered; in particular, the production of a standard model Higgs boson is excluded in the region 340<m(H)<450 GeV at the 95% confidence level.

Item Type:	Journal Article (Original Article)
Division/Institute:	08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP)
UniBE Contributor:	Ancu, Lucian, Beck, Hans Peter, Borer, Claudia
ISSN:	0031-9007
Publisher:	American Physical Society
Language:	English
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 14:25
Last Modified:	05 Dec 2022 14:07
Publisher DOI:	10.1103/PhysRevLett.107.221802
PubMed ID:	22182021
Web of Science ID:	000297292200001
URI:	https://boris.unibe.ch/id/eprint/8829 (FactScience: 214463)