Search for Higgs bosons of the minimal supersymmetric standard model in p-pbar collisions at sqrt(s)=1.96 TeV

TL;DR

This paper reports on searches for neutral Higgs bosons predicted by the MSSM in proton-antiproton collisions at 1.96 TeV, setting new limits on their production and excluding certain parameter ranges.

Contribution

It provides the most stringent constraints to date on MSSM Higgs boson production in p-pbar collisions, combining multiple decay channels for improved sensitivity.

Findings

No evidence of MSSM Higgs bosons was observed.

Excluded tanBeta>20-30 for Higgs masses below 180 GeV.

Set upper limits on Higgs production cross sections.

Abstract

We report results from searches for neutral Higgs bosons produced in p-pbar collisions recorded by the Dzero experiment at the Fermilab Tevatron Collider. We study the production of inclusive neutral Higgs boson in the tautau final state and in association with a b quark in the btautau and bbb final states. These results are combined to improve the sensitivity to the production of neutral Higgs bosons in the context of the minimal supersymmetric standard model (MSSM). The data are found to be consistent with expectation from background processes. Upper limits on MSSM Higgs boson production are set for Higgs boson masses ranging from 90 to 300 GeV. We exclude tanBeta>20-30 for Higgs boson masses below 180 GeV. These are the most stringent constraints on MSSM Higgs boson production in p-pbar collisions.