Feasibility of Searches for a Higgs Boson using H->WW->ll+MET and High PT Jets at the Tevatron

TL;DR

This paper evaluates the potential for detecting a Standard Model Higgs boson at the Tevatron using specific decay channels and jet-associated production, proposing new event selection strategies to enhance sensitivity.

Contribution

It introduces three novel event selection methods involving Higgs production with high PT jets and assesses their impact on Higgs search sensitivity at the Tevatron.

Findings

Potential 95% CL exclusion with 5fb-1 of data

Enhanced sensitivity by combining new and existing analyses

Exclusion limit exceeds Standard Model prediction by 1.6 times at MH=165 GeV

Abstract

The sensitivity of Standard Model Higgs boson searches at the Tevatron experiments with a mass 135<MH<190 GeV using the channel H->WW->ll+MET (l=e,mu) is discussed. Three new event selections involving Higgs in association with one or two high PT hadronic jets are discussed. Using Leading Order Matrix Elements and a conservative cut-based analysis a 95% confidence level exclusion on sigmaxBR(H->WW), 1.6 times larger than that predicted by the Standard Model for MH=165 GeV, may be achieved with 5fb-1 of integrated luminosity. By combining these three event selections with the existing analysis, the sensitivity of CDF and D0 could improve significantly.