Measurements of the Higgs boson production cross section and couplings in the W boson pair decay channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Production cross sections of the standard model
Higgs boson decaying to a pair of W bosons are measured
in proton-proton collisions at a center-of-mass energy of
13 TeV. The analysis targets Higgs bosons produced via
gluon fusion, vector boson fusion, and in association with
a W or Z boson. Candidate events are required to have at
least two charged leptons and moderate missing transverse
momentum, targeting events with at least one leptonically
decaying W boson originating from the Higgs boson. Results
are presented in the form of inclusive and differential cross
sections in the simplified template cross section framework,
as well as couplings of the Higgs boson to vector bosons and
fermions. The data set collected by the CMS detector during
2016–2018 is used, corresponding to an integrated luminosity of 138 fb−1. The signal strength modifier μ, defined as
the ratio of the observed production rate in a given decay
channel to the standard model expectation, is measured to be
μ = 0.95+0.10 −0.09. All results are found to be compatible with
the standard model within the uncertainties.