Measurements of gluon-gluon fusion and vector-boson fusion Higgs boson production cross-sections in the $H\to W{W}^{\ast }\to e\nu \mu \nu$ decay channel in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector

Abstract

Higgs boson production cross-sections in proton-proton collisions are measured in the $H\to W{W}^{\ast }\to e\nu \mu \nu$ decay channel. The proton-proton collision data were produced at the Large Hadron Collider at a centre-of-mass energy of 13 TeV and recorded by the ATLAS detector in 2015 and 2016, corresponding to an integrated luminosity of 36.1 fb${}^{-1}$. The product of the $H\to W{W}^{\ast }$ branching fraction times the gluon-gluon fusion and vector-boson fusion cross-sections are measured to be $11.4_{-1.1}^{+1.2}(stat.{)}_{-1.7}^{+1.8}(syst.)$ $\mathrm{pb}$ and $0.50_{-0.22}^{+0.24}(stat.)\pm 0.17(syst.)$ $\mathrm{pb}$, respectively, in agreement with the Standard Model predictions.

37 pages in total, author list starting page 21, 9 figures, 6 tables, submitted to Phys. Lett. B., all figures including auxiliary figures are available at: https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2016-07/

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