Measurement of the Higgs transverse momentum spectrum in ${\rm H} \to {\rm W}^+{\rm W}^- \to 2l2\nu$ at $\sqrt{s}=8$~TeV

A measurement of the Higgs boson transverse momentum spectrum, performed by the CMS experiment data at the LHC, is presented. The analysis selects ${\rm H} \to {\rm W}^+ {\rm W}^- \to 2l2\nu$ decays in the data sample of proton-proton collision at $\sqrt{s} = 8$~TeV, corresponding on integrated luminosity of 19.4 ${\rm fb}^{-1}$ . The Higgs boson transverse momentum is reconstructed using the transverse momentum of oppositely charged lepton pair (e, $\mu$) and the missing transverse energy due to the two neutrinos in the final state. The differential cross section is obtained as a function of the Higgs boson transverse momentum in a fiducial phase space. The inclusive cross section times branching fraction is measurement to be $\sigma({\rm fid}) = 39 \pm 8 {\rm\ (stat.)} \pm 9 {\rm\ (sys.)}$~fb. This result is in agreement with theoretical calculation based on Standard Model.