CP Violation and Strong Phases from Penguins in $\bf B^{\pm}\rightarrow VV$ Decays
Abstract
We calculate direct CP-violating observables in charged decays arising from the interference of amplitudes with different strong and CKM phases. The perturbative strong phases develop at order from absorptive parts of one-loop matrix elements of the next-to-leading logarithm corrected effective Hamiltonian. CPT constraints are maintained. Based on this model, we find that partial rate asymmetries between charge conjugate decays can be as high as 15-30\% for certain channels with branching ratios in the range. The small values of the coefficients of angular correlations, which we calculated previously to be of order , are not significantly degraded by the strong phases. The charge asymmetries of rates and angular distributions would provide unambiguous evidence for direct CP violation.
Keywords
Cite
@article{arxiv.hep-ph/9402227,
title = {CP Violation and Strong Phases from Penguins in $\bf B^{\pm}\rightarrow VV$ Decays},
author = {G. Kramer and W. F. Palmer and H. Simma},
journal= {arXiv preprint arXiv:hep-ph/9402227},
year = {2010}
}
Comments
24 pages, 3 figures (upon request), LaTeX, preprint DESY 93-192