Flavor symmetry analysis of charmless B --> VP decays

Abstract

Based upon flavor SU(3) symmetry, we perform global fits to charmless B decays into one pseudoscalar meson and one vector meson in the final states. We consider different symmetry breaking schemes and find that the one implied by na{ï}ve factorization is slightly favored over the exact symmetry case. The $(\bar{\rho },\bar{\eta })$ vertex of the unitarity triangle (UT) constrained by our fits is consistent with other methods within errors. We have found large color-suppressed, electroweak penguin and singlet penguin amplitudes when the spectator quark ends up in the final-state vector meson. Nontrivial relative strong phases are also required to explain the data. The best-fit parameters are used to compute branching ratio and CP asymmetry observables in all of the decay modes, particularly those in the $B_s$ decays to be measured at the Tevatron and LHC experiments.

23 pages and 2 plots; updated with ICHEP'08 data and expanded in discussions and references

References in corpus (7)

• Charmless non-leptonic B_s decays to PP, PV and VV final states in the pQCD approach
• Charmless Two-body $B(B_s)\to VP$ decays In Soft-Collinear-Effective-Theory
• Measurement of CP Asymmetries and Branching Fractions in a Time-Dependent Dalitz Analysis of B^0-->(rho pi)^0 and a Constraint on the Quark Mixing Angle phi_2
• $B^0\to \omega {\eta }^{(\prime )}$ and $\varphi {\eta }^{(\prime )}$ decays in the perturbative QCD approach
• $B\to K{K}^{\ast }$ Decays in the Perturbative QCD Approach
• Reexamining charmless B\to PV decays in QCD factorization approach
• Measurement of charmless $B$ Decays to $\eta K^{\ast }$ and $\eta \rho$

Cited by in corpus (8)

• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Updating B --> PP, VP decays in the framework of flavor symmetry
• Analysis of Charmless Two-body B decays in Factorization Assisted Topological Amplitude Approach
• Searching for tetraquark through weak decays of b-baryons
• Deciphering Weak Decays of Triply Heavy Baryons by SU(3) Analysis
• A model independent method for quantitative estimation of $SU(3)$ flavor symmetry breaking using Dalitz plot
• Estimating QCD-factorization amplitudes through $SU(3)$ symmetry in $B\to PP$ decays
• Phenomenological analysis of charmless $B\to PV$ decays in the modified perturbative QCD approach