Search for a Higgs boson produced in association with a Z boson in pp̅ collisions

Authors

• V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
• Kenneth A. Bloom, University of Nebraska - LincolnFollow
• Gregory Snow, University of Nebraska - LincolnFollow

Document Type

Article

Date of this Version

November 2007

Comments

Published in Physics Letters B 655:5–6, (November 8, 2007), pp. 209–216; doi:10.1016/j.physletb.2007.08.070 Copyright © 2007 Elsevier B.V. Used by permission. http://www.sciencedirect.com/science/journal/03702693

Abstract

We describe a search for the Standard Model Higgs boson with a mass of 105 GeV/c² to 145 GeV/c² in data corresponding to an integrated luminosity of approximately 450 pb^-1 collected with the DØ detector at the Fermilab Tevatron p̅p collider at a center-of-mass energy of 1.96 TeV. The Higgs boson is required to be produced in association with a Z boson, and the Z boson is required to decay to either electrons or muons with the Higgs boson decaying to a b̅b pair. The data are well described by the expected background, leading to 95% confidence level cross section upper limits σ (p̅p→ ZH) × (B (H → b̅b) in the range of 3.1 pb to 4.4 pb.