Combined CDF and D0 upper limits on MSSM Higgs boson production in tau-tau final states with up to 2.2 fb-1

TL;DR

This paper combines results from CDF and D0 experiments to set upper limits on MSSM Higgs boson production in tau-tau final states, using up to 2.2 fb-1 of data from Tevatron collisions, and interprets these limits within various MSSM scenarios.

Contribution

It provides the first combined limits on MSSM Higgs production in tau-tau channels using Tevatron data, improving sensitivity over individual analyses.

Findings

Limits on cross section times branching ratio range from 13.6 pb to 0.653 pb.

Results exclude certain MSSM parameter regions at 95% confidence level.

Combined analysis enhances the sensitivity compared to separate experiments.

Abstract

Combined results are presented on the search for a neutral Higgs boson in the di-tau final state using 1.8fb-1 and 2.2fb-1 of integrated luminosity collected at the CDF and D0 experiments respectively. Data were collected in ppbar collisions at a centre of mass energy of 1.96TeV during RunII of the Tevatron. Limits are set on the cross section times branching ratio ranging from 13.6pb to 0.653pb for Higgs masses from 90GeV to 200GeV respectively. The results are then interpreted as limits in four different benchmark scenarios within the framework of the MSSM.