Probing the heavy Higgs mass by the measurement of the Higgs decay branching ratios in the minimal supersymmetric standard model

Abstract

We examine whether the parameters in the Higgs sector of the minimal supersymmetric standard model can be determined by detailed study of production cross section and decay branching ratios of the Higgs particle. Assuming that the lightest CP-even Higgs boson ($h$) is observed at a future $e^{+}{e}^{-}$ linear collider with $\sqrt{s}=300\sim 500$GeV, we show that the value of CP-odd scalar mass is determined from the ratio of the two branching ratios, $Br(h\to b\bar{b})$ and $Br(h\to c\bar{c})+Br(h\to gg)$, almost independently of the stop mass scale.

12 pages, 3 figures, also available via anonymous ftp at ftp://ftp.kek.jp/kek/preprints/TH/TH-458

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Cited by in corpus (4)

• The Anatomy of Electro-Weak Symmetry Breaking. I: The Higgs boson in the Standard Model
• Distinguishing a MSSM Higgs Boson from the SM Higgs Boson at a Linear Collider
• Evaluation of measurement accuracies of the Higgs boson branching fractions in the International Linear Collider
• Physics impact of ILC Higgs coupling measurements: the effect of theory uncertainties