Measurement of the Higgs decay to electroweak bosons at low and intermediate CLIC energies

TL;DR

This study simulates Higgs boson decay measurements to electroweak bosons at CLIC energies, assessing the potential precision of these measurements under realistic detector and beam conditions.

Contribution

It provides a detailed simulation framework for measuring Higgs decay channels at different CLIC energies, including background analysis and detector effects.

Findings

Estimated statistical precision for Higgs decay measurements

Feasibility of measuring Higgs to ZZ* and WW* decays at CLIC

Impact of realistic beam and detector conditions on measurement accuracy

Abstract

In this paper a simulation of measurements of the Higgs boson decay to electroweak bosons in $e^+e^-$ collisions at CLIC is presented. Higgs boson production and subsequent $H\rightarrow ZZ^\ast$ and $H\rightarrow WW^\ast$ decay processes were simulated alongside the relevant background processes at 350 GeV and 1.4 TeV center-of-mass energy. Full detector simulation and event reconstruction were used under realistic beam conditions. The achievable statistical precision of the measured product of the Higgs production cross section and the branching ratio for the analysed decays has been determined.