Search for W H associated production in 5.3 fb(-1) of p(p)over-bar collisions at the Fermilab Tevatron
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
28/03/2011
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Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We present a search for associated production of Higgs and W bosons in p (p) over bar collisions at a center of mass energy of root s = 1.96 TeV in 5.3 fb(-1) of integrated luminosity recorded by the do experiment. Multivariate analysis techniques are applied to events containing one lepton, an imbalance in transverse energy, and one or two b-tagged jets to discriminate a potential WH signal from Standard Model backgrounds. We observe good agreement between data and expected backgrounds, and set an upper limit of 4.5 (at 95% confidence level and for m(H) = 115 GeV) on the ratio of the WH cross section multiplied by the branching fraction of H -> b (b) over bar to its Standard Model prediction, which is consistent with an expected limit of 4.8. (C) 2011 Elsevier B.V. All rights reserved. |
Identificador |
http://dx.doi.org/10.1016/j.physletb.2011.02.036 Physics Letters B. Amsterdam: Elsevier B.V., v. 698, n. 1, p. 6-13, 2011. 0370-2693 http://hdl.handle.net/11449/24052 10.1016/j.physletb.2011.02.036 WOS:000289131600002 |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Physics Letters B |
Direitos |
closedAccess |
Palavras-Chave | #Tevatron #Standard Model #Higgs boson #Electroweak symmetry breaking |
Tipo |
info:eu-repo/semantics/article |