TY - JOUR
T1 - Exploring Bd,s→KK decays through flavor symmetries and QCD factorization
AU - Descotes-Genon, Sébastien
AU - Matias, Joaquim
AU - Virto, Javier
PY - 2006/8/17
Y1 - 2006/8/17
N2 - We present a new analysis of Bd,s→KK modes within the standard model (SM), relating them in a controlled way through SU(3)-flavor symmetry and QCD-improved factorization. We propose a set of sum rules for Bd,s→K0K̄0 observables. We determine Bs→KK branching ratios and CP asymmetries as functions of Adir(Bd→K0K̄0), pointing out a conflict between BR(Bs→K+K-) in the SM and data. Finally, we predict the amount of U-spin breaking between Bd→π+π- and Bs→K+K-. © 2006 The American Physical Society.
AB - We present a new analysis of Bd,s→KK modes within the standard model (SM), relating them in a controlled way through SU(3)-flavor symmetry and QCD-improved factorization. We propose a set of sum rules for Bd,s→K0K̄0 observables. We determine Bs→KK branching ratios and CP asymmetries as functions of Adir(Bd→K0K̄0), pointing out a conflict between BR(Bs→K+K-) in the SM and data. Finally, we predict the amount of U-spin breaking between Bd→π+π- and Bs→K+K-. © 2006 The American Physical Society.
U2 - https://doi.org/10.1103/PhysRevLett.97.061801
DO - https://doi.org/10.1103/PhysRevLett.97.061801
M3 - Article
VL - 97
M1 - 061801
ER -