CP violation in the semileptonic top decay in two-Higgs doublet model
Abstract
CP violation in semileptonic top-quark decay is investigated by exactly using one charged- and three neutral-Higgs bosons obtained by solving the Higgs mass matrix in two-Higgs doublet model. The CP-violating up-down asymmetry of leptons from W boson decays is shown to be 1 × 10-4 - 4 × 10-3 for the region of tan β 1, where tan β is the ratio of vacuum expectation values for the two neutral Higgs bosons.
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