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New-Physics Effects on Triple-Product Correlations in Lambda_b Decays
Wafia Bensalem, Alakabha Datta, David London
We adopt an effective-lagrangian approach to compute the new-physics contributions to T-violating triple-product correlations in charmless Lambda_b decays. We use factorization and…
Lepton Polarization and Forward-Backward Asymmetries in b -> s tau+ tau-
Wafia Bensalam, David London, Nita Sinha +1
We study the spin polarizations of both tau leptons in the decay b -> s tau+ tau-. In addition to the polarization asymmetries involving a single tau, we construct asymmetries for…
B_{d,s}^0 --> K^{(*)} K-bar^{(*)}: CP phase alpha and New Physics
Alakabha Datta, David London
The decays B_{d,s}^0 --> K^{(*)} K-bar^{(*)} can be used to measure the angle alpha of the CKM unitarity triangle. The theoretical error from SU(3) breaking is expected to be small…
New Physics in B -> J/Psi K^*
D. London, N. Sinha, R. Sinha
Direct CP violation in B -> J/Psi K is a clean test for new physics. However, the direct CP asymmetry will vanish if the new-physics amplitude has the same strong phase as the stan…
T-Violating Triple-Product Correlations in Charmless Lambda_b Decays
Wafia Bensalem, Alakabha Datta, David London
Using factorization, we compute, within the standard model, the T-violating triple-product correlations in the charmless decays Lambda_b -> F_1 F_2, where F_1 is a light spin-1/2 b…