Combined measurements of Higgs boson couplings in proton-proton collisions at √s=13TeV

Abstract

Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton-proton collision data set recorded with the CMS detector in 2016 at fb-1. The combination is based on analyses targeting the five main Higgs boson production mechanisms (gluon fusion, vector boson fusion, and associated production with a W or Z boson, or a top quark-antiquark pair) and the following decay modes: H, ZZ, WW, , bb, and . Searches for invisible Higgs boson decays are also considered. The best-fit ratio of the signal yield to the standard model expectation is measured to be =1.17 +/- 0.10, assuming a Higgs boson mass of 125.09. Additional results are given for various assumptions on the scaling behavior of the production and decay modes, including generic parametrizations based on ratios of cross sections and branching fractions or couplings. The results are compatible with the standard model predictions in all parametrizations considered. In addition, constraints are placed on various two Higgs doublet models.Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Programa Consolider-Ingenio 2010Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)Chulalongkorn Academic into Its second Century Project Advancement Project (Thailand)Institut National de Physique Nucleaire et de Physique des Particules/CNRS, FranceRachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn UniversitySecretariat for Higher Education, Science, Technology and Innovation, EcuadorPlan de Ciencia, Tecnologia e Innovacion 2013-2017 del Principado de AsturiasPlan Estatal de Investigacion Cientifica y Tecnica y de Innovacion 2013-2016HOMING PLUS programme of the Foundation for Polish Science - European Union