SM-like Higgs decay into two muons at 1.4 TeV CLIC

Abstract

The potential for measuring the Standard Model (SM) Higgs boson decay into two muons at a 1.4 TeV CLIC e(+)e(-) collider, presented at ICHEP2014, is addressed in this paper. The study is performed in the full Geant4 detector simulations of CLIC_ILD, taking into consideration all the relevant physics and the beam-induced background processes, as well as the instrumentation of the very forward region to tag forward electrons. In this analysis we show that the branching ratio BR(H - GT mu(+)mu(-)) times the Higgs production cross-section can be measured with 38% statistical accuracy at root s =1.4 TeV using an integrated luminosity of 1.5 ab(-1). This study is part of an ongoing comprehensive Higgs physics benchmark study covering various Higgs production processes and decay modes, currently being carried out to estimate the full Higgs physics potential of CLIC.