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

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.