Measurement of production cross sections of the Higgs boson in decays to two W bosons using the ATLAS detector

Abstract

This proceedings presents the latest measurements of the Higgs boson production cross sections times branching ratio in the $H\rightarrow WW^{*}\rightarrow \ell\nu\ell\nu$ decay mode for the three most dominant production processes of the Higgs boson: gluon-gluon fusion, vector boson fusion and the associated production of a vector boson and a Higgs boson. The measurements are performed based on proton-proton collision data collected at $13 {TeV}$ by the ATLAS detector. The cross section times branching ratios of the gluon-gluon fusion and vector boson fusion production modes are measured in a dataset corresponding to an integrated luminosity of $36.1 {fb}^{-1}$ and are found to be $12.6^{+1.3}_{-1.2}(stat.)^{+1.9}_{-1.8}(sys.){pb}$ and $0.5^{+0.24}_{-0.23}(stat.) \pm 0.18 (sys.) {pb}$ , respectively. The cross section times branching ratio of the associated production of a vector boson and a Higgs boson is measured in a dataset corresponding to an integrated luminosity of $5.8 {fb}^{-1}$ and is found to be $0.9^{+1.1}_{-0.9}(stat.)^{+0.7}_{-0.8}(sys.){pb}$. For all three production modes, the measured cross section times branching ratio are compatible to the SM predictions within one standard deviation.