Search for the Standard Model Higgs Boson in the pp̅→ ZH → νν̅bb̅ Channel

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

10-20-2006

Comments

Published by American Physical Society. Phys. Rev. Lett. 97, 161803 (2006). http://prl.aps.org. Copyright © 2006 American Physical Society. Permission to use.

Abstract

We report a search for the standard model (SM) Higgs boson based on data collected by the D0 experiment at the Fermilab Tevatron Collider, corresponding to an integrated luminosity of 260 pb^-1. We study events with missing transverse energy and two acoplanar b jets, which provide sensitivity to the ZH production cross section in the νν̅bb̅ channel, and to WH production when the lepton from the W → ℓν decay is undetected. The data are consistent with the SM background expectation, and we set 95% C.L. upper limits on σ(pp̅ → ZH/WH) ×B(H → bb̅) from 3.4/8.3 to 2.5/6.3 pb, for Higgs-boson masses between 105 and 135 GeV.