The study of CP violation in systems where it is expected to be suppressed and in systems where it is expected to be approximately the same as in the "golden" b -> c (c) over bars transitions, provides an excellent laboratory for the search for physics beyond the Standard Model. Hadronic b -> s (q) over barq decays, radiative b -> s gamma events, charm and tau decays are selected from the samples of events collected by the BaBar and Belle detectors by means of several strategies. Standard Model tests are performed through measurements of B-0 -> (KSKSKS0)-K-0-K-0 and B-0 > phi K-S(0)gamma time-dependent CP asymmetries, D-(s)(+) -> (K+KS0)pi(+)pi(-) T-odd correlations, D+ -> phi pi(+) time-integrated CP asymmetry and tau(-) -> pi K--(S0)nu(tau) decay-rate CP asymmetry. Limits on the charged Higgs boson couplings in the multi-Higgs-doublet scenario are obtained from the study of the relevant angular distributions in tau(-) -> pi(-KS0)nu(tau) decays.
Cp Violation Beyond Standard Model
MARGONI, MARTINO
2012
Abstract
The study of CP violation in systems where it is expected to be suppressed and in systems where it is expected to be approximately the same as in the "golden" b -> c (c) over bars transitions, provides an excellent laboratory for the search for physics beyond the Standard Model. Hadronic b -> s (q) over barq decays, radiative b -> s gamma events, charm and tau decays are selected from the samples of events collected by the BaBar and Belle detectors by means of several strategies. Standard Model tests are performed through measurements of B-0 -> (KSKSKS0)-K-0-K-0 and B-0 > phi K-S(0)gamma time-dependent CP asymmetries, D-(s)(+) -> (K+KS0)pi(+)pi(-) T-odd correlations, D+ -> phi pi(+) time-integrated CP asymmetry and tau(-) -> pi K--(S0)nu(tau) decay-rate CP asymmetry. Limits on the charged Higgs boson couplings in the multi-Higgs-doublet scenario are obtained from the study of the relevant angular distributions in tau(-) -> pi(-KS0)nu(tau) decays.Pubblicazioni consigliate
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