Higgs properties measurements using the four lepton decay channel

Abstract

The measurements of the properties of the Higgs boson are presented in the H$\to$ZZ$\to$4$\ell$ ($\ell$=e,$\mu$) decay channel using a data sample corresponding to an integrated luminosity of 35.9 fb${}^{-1}$ of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the CMS detector at the LHC. The signal-strength modifier $\mu$, defined as the production cross section of the Higgs boson times its branching fraction to four leptons relative to the standard model expectation, is measured to be $\mu =1.05_{-0.17}^{+0.19}$ at $m_{\mathrm{H}}=125.09\mathrm{GeV}$. Constraints are set on the strength modifiers for the main Higgs boson production modes. The mass is measured to be $m_{\mathrm{H}}=125.26\pm 0.21\mathrm{GeV}$ and the width is constrained using on-shell production to be ${\Gamma }_{\mathrm{H}}<1.10\mathrm{GeV}$, at $95\%$ CL. The fiducial cross section is measured to be $2.90_{-0.44}^{+0.48}(stat.{)}_{-0.22}^{+0.27}(sys.)\mathrm{fb}$, which is compatible with the standard model prediction of $2.72\pm 0.14\mathrm{fb}$.

Presented at LHCP2017

References in corpus (1)

• Measurements of properties of the Higgs boson decaying into the four-lepton final state in pp collisions at sqrt(s) = 13 TeV