Charmless B ---> VP decays using flavor SU(3) symmetry
Journal
Physical Review
Journal Volume
D69
Pages
034001
Date Issued
2003-07
Author(s)
Abstract
The decays of B mesons to a charmless vector [Formula Presented] and pseudoscalar [Formula Presented] meson are analyzed within a framework of flavor SU(3) in which symmetry breaking is taken into account through ratios of decay constants in tree [Formula Presented] amplitudes but exact SU(3) is assumed for color-suppressed and penguin amplitudes. The magnitudes and relative phases of tree and penguin amplitudes are extracted from data, the symmetry assumption is tested, and predictions are made for rates and [Formula Presented] asymmetries in as-yet-unseen decay modes. A key assumption for which we perform some tests and suggest others is a relation between penguin amplitudes in which the spectator quark is incorporated into either a pseudoscalar meson or a vector meson. Values of [Formula Presented] slightly restricting the range currently allowed by fits to other data are favored, but outside this range there remain acceptable solutions which cannot be excluded solely on the basis of present [Formula Presented] experiments. © 2004 The American Physical Society.
Type
journal article