2 research outputs found
T-Odd Correlations in pi->e nu_e gamma and pi->mu nu_mu gamma Decays
The transverse lepton polarization asymmetry in pi_l2gamma decays may probe
T-violating interactions beyond the Standard Model. Dalitz plot distributions
of the expected effects are presented and compared to the contribution from the
Standard Model final state interactions. We give an example of a
phenomenologically viable model, where a considerable contribution to the
transverse lepton polarization asymmetry arises.Comment: 19 pages, 5 figures. To be published in Phys.Rev.D. Fixed sign in FSI
contribution figure, fixed formulas in K-bar{K} mixing analysis, added some
minor comment
T-odd correlations in charged Kl4 decays
We analyse the sensitivity to physics beyond the SM of T-odd correlations in
decays, which do not involve the lepton polarization. We show that
a combined analysis of and decays can lead to new
constraints about CP violation in charged-current interactions,
complementary to those obtained from the transverse muon polarization in
and of comparable accuracy.Comment: 6 pages (LaTeX