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CP violation in hadronic tau decays

2008/06/27 by Ken Kiers, Kiers, Ken
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.48550/arxiv.0806.4585

3 pages, 1 figure, Flavor Physics & CP Violation Conference, Taipei, 2008; note added to correct an incorrect statement in the text; reference updated

openalex publication_date 2008/06/27 · arxiv created 2008/08/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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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