Search for Higgs Bosons Decaying into b b̅ and Produced in Association with a Vector Boson in p p̅ Collisions at √s =1.8 TeV

Authors

Darin Acosta, University of FloridaFollow
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Collider Detector at Fermilab Collaboration

Date of this Version

7-29-2005

Comments

Published by American Physical Society. Phys. Rev. Lett. 95, 051801 (2005). http://prl.aps.org. Copyright © 2005 American Physical Society. Permission to use.

Abstract

We present a new search for H⁰V production, where H⁰ is a scalar Higgs boson decaying into b b̅ with branching ratio β, and V is a Z⁰ boson decaying into e⁺e^-, µ⁺µ^-, or νν̅. This search is then combined with previous searches for H⁰V where V is a W^± boson or a hadronically decaying Z⁰. The data sample consists of 106±4 pb^-1 of p p̅ collisions at √s=1.8 TeV accumulated by the Collider Detector at Fermilab. Observing no evidence of a signal, we set 95% Bayesian credibility level upper limits on σ (p p̅→H⁰V)× β. For H⁰ masses of 90, 110, and 130 GeV/c², the limits are 7.8, 7.2, and 6.6 pb, respectively.