Search for Higgs Boson Decaying to b-bbar and Produced in Association with W Bosons in p-pbar Collisions at sqrt{s}=1.96 TeV

TL;DR

This paper reports a search for Higgs bosons decaying into b-bbar and produced with W bosons in proton-antiproton collisions, setting upper limits on production cross sections based on data from the Fermilab Collider Detector.

Contribution

First search for Higgs decaying to b-bbar in association with W bosons at Tevatron energies, providing upper limits on production cross sections for various Higgs masses.

Findings

No significant excess over background observed.

Set upper limits on Higgs production cross section from 10 pb to 3 pb.

Results consistent with Standard Model background expectations.

Abstract

We present a search for Higgs bosons decaying into b-bbar and produced in association with W bosons in p-pbar collisions at sqrt{s}=1.96 TeV. This search uses 320 pb-1 of the dataset accumulated by the upgraded Collider Detector at Fermilab. Events are selected that have a high-transverse momentum electron or muon, missing transverse energy, and two jets, one of which is consistent with a hadronization of a b quark. Both the number of events and the dijet mass distribution are consistent with standard model background expectations, and we set 95% confidence level upper limits on the production cross section times branching ratio for the Higgs boson or any new particle with similar decay kinematics. These upper limits range from 10 pb for mH=110 GeV/c2 to 3 pb for mH=150 GeV/c2.