Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-02-19
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 11 pages, 3 figures, 3 tables, Contribution to the Les Houches workshop ``Physics at TeV Colliders'', 26 May - 6 June,
Scientific paper
We present results on the determination of the observable ratio R=BR(H^+ -> \tau \nu)/BR(H^+ -> t b-bar) of charged Higgs boson decay rates as a discriminant quantity between Supersymmetric and non-Supersymmetric models. Simulation of measurements of this quantity through the analysis of the charged Higgs production process gb-> t b H^+ and relative backgrounds in the two above decay channels has been performed in the context of ATLAS. A ~12-14% accuracy on R can be achieved for \tan\beta=50, \mHc=300-500 GeV and after an integrated luminosity of 300 fb^-1. With this precision measurement, the Large Hadron Collider (LHC) can easily discriminate between models for the two above scenarios, so long as \tan\beta > 20.
Assamagan Ketevi A.
Guasch Jaume
Moretti Sébastien
Penaranda Siannah
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