Measurement of the branching ratios for the standard model Higgs decays into muon pairs and into Z boson pairs at a 1.4 TeV CLIC
- Vinca Institute of Nuclear Sciences, University of Belgrade, Mihajla Petrovića Alasa 12-14, 11001 Belgrade (Serbia)
- CERN, CH-1211 Geneva 23 (Switzerland)
The measurement of the Higgs production cross-section times the branching ratios for its decays into μ{sup +}μ{sup −} and ZZ* pairs at a 1.4 TeV CLIC collider is investigated in this paper. The Standard Model Higgs boson with a mass of 126 GeV is dominantly produced via WW fusion in e{sup +}e{sup −} collisions at 1.4 TeV centre-of-mass energy. Analyses of both decay channels are based on a full simulation of the CLIC-ILD detector. All relevant physics and beam-induced background processes are taken into account. An integrated luminosity of 1.5 ab{sup −1} and unpolarised beams are assumed. For the H→ZZ* decay, the purely hadronic final state (ZZ* → qq̄qq̄) is considered as well as ZZ* decays into two jets and two leptons (ZZ* → qql{sup +}l{sup −}). It is shown that the branching ratio for the Higgs decay into a muon pair times the Higgs production cross-section can be measured with 38% statistical uncertainty. It is also shown that the statistical uncertainty of the Higgs branching ratio for decay into a Z boson pair times the Higgs production cross-section can be measured with a precision of 18.3% and 5.6% for the hadronic and semi-leptonic ZZ* decays, respectively.
- OSTI ID:
- 22590963
- Journal Information:
- AIP Conference Proceedings, Vol. 1722, Issue 1; Conference: BPU-9: 9. international physics conference of the Balkan Physical Union, Istanbul (Turkey), 24-27 Aug 2015; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BEAM LUMINOSITY
BRANCHING RATIO
COMPACT LINEAR COLLIDER
COMPUTERIZED SIMULATION
CROSS SECTIONS
GEV RANGE
HADRONIC PARTICLE DECAY
HIGGS BOSONS
HIGGS MODEL
MUON PAIRS
MUONS MINUS
MUONS PLUS
POSITRONS
SEMILEPTONIC DECAY
STANDARD MODEL
TEV RANGE
Z NEUTRAL BOSONS