Measurements of the 125 GeV Higgs boson at CMS

TL;DR

This paper reports comprehensive measurements of the 125 GeV Higgs boson properties at CMS using proton-proton collision data, covering multiple decay modes and comparing results with Standard Model predictions.

Contribution

It provides the most detailed measurements of the Higgs boson properties at 13 TeV, including decay channels, couplings, and cross sections, confirming consistency with the Standard Model.

Findings

All measurements are consistent with Standard Model predictions.

Measured Higgs boson mass and signal strengths match expectations.

Constraints on Higgs couplings and production modes are improved.

Abstract

Results of the measurements of the 125 GeV Higgs boson properties with proton-proton collision data at $\sqrt{s}=13$ TeV collected by CMS detector are presented. The used Higgs boson decay channels include the five major decay modes, $\mathrm{H}\rightarrow\gamma\gamma$, $\mathrm{H}\rightarrow{\rm Z}{\rm Z}\rightarrow4\ell$, $\mathrm{H}\rightarrow{\rm W}{\rm W}\rightarrow\ell\nu\ell\nu$, $\mathrm{H}\rightarrow\tau^{+}\tau^{-}$ and $\mathrm{H}\rightarrow b\bar{b}$, and two rare decay modes, $\mathrm{H}\rightarrow\mu^{+}\mu^{-}$ and $\mathrm{H}\rightarrow{\rm Z}/\gamma^{*}+\gamma\rightarrow\ell\ell\gamma$, with $\ell={\rm e},\mu$. The measured Higgs boson properties include its mass, signal strength relative to the standard model prediction, signal strength modifiers for different Higgs boson production modes, coupling modifiers to fermions and bosons, effective coupling modifiers to photons and gluons, simplified template cross sections, fiducial cross sections. All results are consistent, within their uncertainties, with the expectations for the Standard Model Higgs boson.