CP violation in hadronic tau decays
Abstract
We examine CP violation in the Delta S=0 decays tau -> omega pi nutau and tau -> a1 pi nutau and the Delta S=1 decay tau -> K pi pi nutau. We assume that the new physics is a charged Higgs. We show that sizeable CP-violating effects are possible in tau -> a1 pi nutau (polarization-dependent rate asymmetry) and tau -> omega pi nu tau (triple-product asymmetry). The Delta S=1 decay tau -> K pi pi nutau can proceed via several resonances. We construct two modified rate asymmetries and a triple product asymmetry for this decay and discuss the potential sensitivities of these asymmetries.
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