Search for WH to 3 leptons

This document reports on a search for the associated Higgs boson production in the three leptons final state in pp collisions at $\sqrt{s} = $ 7~$\ensuremath{\mathrm{Te\kern -0.1em V}}$. The analysis is performed using the LHC data recorded with the CMS detector, corresponding to an integrated luminosity of 4.6~fb$^{-1}$. Candidates are selected in events with three leptons, electrons or muons, large missing energy and low hadronic activity. No significant excess of events above the standard model background expectation is observed. The observed (expected) upper limits at the 95\% confidence level are 10.4 (12.1) times larger than the standard model Higgs expectation for $\ensuremath{m_{\mathrm{H}}}=$ 120 $\ensuremath{\,\mathrm{Ge\kern -0.1em V\!}}$.