Searches at the Tevatron for a Low Mass Standard Model Higgs Boson

TL;DR

This paper reports on searches for a low mass Standard Model Higgs boson at the Tevatron, using data from CDF and D0 detectors, but finds no evidence and sets upper limits on production cross sections.

Contribution

It presents combined analyses from CDF and D0 with improved sensitivity techniques for low mass Higgs searches at the Tevatron.

Findings

No evidence for Higgs production was observed.

Upper limits on cross section times branching ratio were established.

Analysis improvements enhanced sensitivity beyond dataset size increases.

Abstract

We report on searches for the standard model Higgs boson with the CDF and D0 detectors using up to 2.7 fb$^{-1}$ of $\sqrt s=$ 1.96 TeV proton anti-proton collisions at Fermilab's Tevatron. We focus on analyses that are sensitive to low mass Higgs production with $m_H<$ 140 GeV/$c^2$ favored by precision electroweak constraints. Both CDF and D0 find no evidence for Higgs boson production, and set upper limits on cross section times branching ratio. Several analyses improvements have increased the sensitivity to a Higgs signal faster than what is expected from increasing datasets alone.