Light Higgs Studies for the CLIC CDR

TL;DR

This paper discusses the potential of the 3TeV CLIC linear collider to precisely measure Higgs boson properties, especially its decay branching ratios to b, c quarks, and muons, to explore its true nature beyond LHC capabilities.

Contribution

It presents detailed projections for Higgs branching ratio measurements at CLIC, highlighting the collider's ability to achieve high-precision Higgs property measurements.

Findings

Higgs to b-quark branching ratio can be measured with 0.22% uncertainty.

Higgs to c-quark branching ratio can be measured with 3.2% uncertainty.

Higgs to muon pair branching ratio can be measured with 15% uncertainty.

Abstract

The Higgs boson is the most anticipated discovery at the LHC, which can only partially explore its true nature. Thus one of the most compelling arguments to build a future linear collider is to investigate properties of the Higgs boson, especially to test the predicted linear dependence of the branching ratios on the mass of the final state. At a 3TeV CLIC machine the Higgs boson production cross section is relatively large and allows for a precision measurement of the Higgs branching ratio to pairs of b and c quarks, and even to muons. The cross section times branching ratio of the decays $H\rightarrow b\bar{b}$, $H\rightarrow c\bar{c}$ and $H\rightarrow \mu^{+}\mu^{-}$ can be measured with a statistical uncertainty of approximately 0.22%, 3.2% and 15%, respectively.