Search for SM Higgs in the $WH \to lνb\bar{b}$ Channel using $\sim$2fb$^{-1}$

Details Search for SM Higgs in the $WH \to lνb\bar{b}$ Channel using $\sim$2fb$^{-1}$ Search for SM Higgs in the $WH \to lνb\bar{b}$ Channel using $\sim$2fb$^{-1}$

2008-05-19

arxiv.org/abs/0805.2803v1

Physics

High Energy Physics

High Energy Physics - Experiment

Moriond EW 2008 Proceedings

Scientific paper

We report a search for Standard Model (SM) Higgs boson production in association with a $W^{\pm}$ boson. This search uses data corresponding to an integrated luminosity of $\math rm{1.9 fb^{-1}}$ collected with the CDF detector at Tevatron. We select events matching the $W$ + jets signature and require at least one jets to be identified as $b$-quark jets . To further increase discrimination between signal and background, we use kinematic information in an artificial neural network. The number of tagged events and the resulting neural network output distributions are consistent with the Standard Model expectations, and we set an upper limit on the $WH$ produ ction cross section times branching ratio $\sigma(p\bar{p} \to W{^\pm}H)\times BR(H\to b\bar{b}) < 1.1$ to 1.0 pb for Higgs masses from 110 GeV/$c^{2}$ to 150 G eV/c$^2$ at 95% confidence level.

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