Search for the Standard Model Higgs Boson in the Missing Energy and Acoplanar b-Jet Topology at √s = 1.96 TeV

Authors

V. M. Abazov, Joint Institute for Nuclear Research, Dubna, Russia
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Gregory R. Snow, University of Nebraska-LincolnFollow
D0 Collaboration

Date of this Version

12-19-2008

Comments

Published in PHYSICAL REVIEW LETTERS 101, 251802 (2008). Copyright © 2008 The American Physical Society. Used by permission.

Abstract

We report a search for the standard model Higgs boson in the missing energy and acoplanar b-jet topology, using an integrated luminosity of 0.93 fb^-1 recorded by the D0 detector at the Fermilab Tevatron pp Collider. The analysis includes signal contributions from pp → ZH → ννbb, as well as from WH production in which the charged lepton from the W boson decay is undetected. Neural networks are used to separate signal from background. In the absence of a signal, we set limits on σ (pp → VH) x B(H → bb) at the 95% C.L. of 2.6–2.3 pb, for Higgs boson masses in the range 105–135 GeV, where V = W, Z. The corresponding expected limits range from 2.8 to 2.0 pb.