Search for associated Higgs boson production WH->WWW*->l+-nu l'+-nu'+X in p-pbar collisions at sqrt(s)=1.96 TeV

Abstract

We present a search for associated Higgs boson production in the process $p\bar{p}\to WH\to WW{W}^{\ast }\to l^{\pm }\nu l^{\prime \pm }{\nu }^{\prime }+X$ in final states containing two like-sign isolated electrons or muons ($e^{\pm }{e}^{\pm }$, $e^{\pm }{\mu }^{\pm }$, or ${\mu }^{\pm }{\mu }^{\pm }$). The search is based on D0 Run II data samples corresponding to integrated luminosities of 360--380 pb${}^{-1}$. No excess is observed over the predicted standard model background. We set 95% C.L. upper limits on $\sigma (p\bar{p}\to WH)\times Br(H\to W{W}^{\ast })$ between 3.2 and 2.8 pb for Higgs masses from 115 to 175 GeV.

7 pages, 3 figures, Published in Phys. Rev. Lett. Minor changes in v2 to match the published version

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