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Search for WH associated production in 5.3 fb−1 of pp collisions at the Fermilab Tevatron

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>28/03/2011
<mark>Journal</mark>Physics Letters B
Issue number1
Volume698
Number of pages7
Pages (from-to)6-13
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

We present a search for associated production of Higgs and W bosons in pp collisions at a center of mass energy of s√=1.96  TeV in 5.3 fb-1 of integrated luminosity recorded by the D0 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 background, and set an upper limit of 4.5(at 95% confidence level and for mH=115 GeV) on the ratio of the WH cross section multiplied by the branching fraction of H→bb to its standard model prediction, which is consistent with an expected limit of 4.8.

Bibliographic note

submitted to Physics Letter B