B -> K1 gamma and tests of factorization for two-body non leptonic Bdecays with axial-vector mesons
High Energy Physics - Phenomenology
2009-11-11 v2
Abstract
The large branching ratio for B-> K1 gamma recently measured at Belle implies a large B -> K1 transition form factor and large branching ratios for non leptonic B decays involving an axial-vector meson. In this paper we present an analysis of two-body B decays with an axial-vector meson in the final state using naive factorization and the B -> K1 form factors obtained from the measured radiative decays. We find that the predicted B -> J/psi K1 branching ratio is in agreement with experiment. We also suggest that the decay rates of B -> K1 pi, B -> a1 K and B -> b1 K could be used to test the factorization ansatz.
Cite
@article{arxiv.hep-ph/0505048,
title = {B -> K1 gamma and tests of factorization for two-body non leptonic Bdecays with axial-vector mesons},
author = {G. Nardulli and T. N. Pham},
journal= {arXiv preprint arXiv:hep-ph/0505048},
year = {2009}
}
Comments
8 pages; 7 new references included and a comment on K2(1430) in the final state added