Measurement of the H to ZZ branching fraction at 350 GeV and 3 TeV CLIC

• Published in: arXiv.org
• Main Authors: Vukašinović, N, Božović-Jelisavčić, I, Kačarević, G, Radulović, M, Stevanović, J, Milutinović-Dumbelović, G, Agatonović-Jovin, T, Smiljanić, I
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 09.02.2022
• Subjects: Bosons; Higgs bosons; Luminosity; Physics - Accelerator Physics; Physics - High Energy Physics - Experiment; Physics - High Energy Physics - Phenomenology; Quarks
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2202.04395

In this paper we investigate the prospects for measuring the branching fraction of the Standard Model Higgs boson decay into a pair of \(Z\) bosons at the future Compact Linear Collider (CLIC) at 350 GeV and 3 TeV centre-of-mass energies. Studies are performed using a detailed simulation of the detector for CLIC, taking into consideration all relevant physics and beam-induced background processes. It is shown that the product of the Higgs production cross-section and the branching fraction BR(\({H\rightarrow\thinspace ZZ^\ast}\)) can be measured with a relative statistical uncertainty of 20% (3.0%) at a centre-of-mass energy of 350 GeV (3 TeV) using semileptonic final states, assuming an integrated luminosity of 1 ab\(^{-1}\) (5 ab\(^{-1}\)).