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 $p\bar{p} \to WH\to WWW^*\to l^\pmνl'^\pmν'+X$ in final states containing two like-sign isolated electrons or muons ($e^\pm e^\pm$, $e^\pm μ^\pm$, or $μ^\pm μ^\pm$). 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 $σ(p\bar{p}\to WH)\times Br(H\to WW^*)$ between 3.2 and 2.8 pb for Higgs masses from 115 to 175 GeV.