Higgs boson hadronic branching ratios at the ILC

Journal Article · Sun Aug 01 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.033013· OSTI ID:21432840

Banda, Yambazi; Lastovicka, Tomas; Nomerotski, Andrei ^[1]

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1. University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH (United Kingdom)

We present a study of the Higgs boson decay branching ratios to bb, cc, and gluons, one of the cornerstones of the physics program at the International Linear Collider. A standard model Higgs boson of 120 GeV mass, produced in the Higgs-strahlung process at {radical}(s)=250 GeV, was investigated using the full detector simulation and reconstruction procedures. The analysis was performed in the framework of the Silicon Detector concept with full account of inclusive standard model backgrounds. The selected decay modes contained two heavy flavor jets in the final state and required excellent flavor tagging through precise reconstruction of interaction and decay vertices in the detector. A new signal discrimination technique using correlations of neural network outputs was used to determine the branching ratios and estimate their uncertainties, 4.8%, 8.4%, and 12.2% for bb, cc, and gluons, respectively.

• OSTI ID: 21432840
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BOSONS
BRANCHING RATIO
COMPOSITE MODELS
CORRELATIONS
DECAY
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
FLAVOR MODEL
GEV RANGE
GEV RANGE 100-1000
GLUONS
GRAND UNIFIED THEORY
HADRONS
HIGGS BOSONS
INTERACTIONS
LINEAR ACCELERATORS
LINEAR COLLIDERS
MASS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
NEURAL NETWORKS
PARTICLE DECAY
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARK MODEL
RADIATION DETECTORS
SEMICONDUCTOR DETECTORS
SI SEMICONDUCTOR DETECTORS
SIMULATION
STANDARD MODEL
UNIFIED GAUGE MODELS