Examination of Flavor SU(3) in B, Bs to Kpi Decays

Journal Article · Mon Apr 14 00:00:00 EDT 2008 · Physics Letters B

DOI:https://doi.org/10.1016/j.physletb.2008.05.017· OSTI ID:927357

Chiang, Cheng-Wei; Gronau, Michael; Rosner, Jonathan L

We update a discussion of the relation between the weak phase and the rates and CP asymmetries of several K{pi} decays of B{sup +}, B{sup 0}, and B{sub s}. We emphasize the impact of measurements of B{sub s} {yields} K{pi}. Current data indicate large SU(3) breaking in the strong phases or failure of factorization (including its application to penguin amplitudes) in K{pi} modes of B{sup 0} and B{sub s}. SU(3) and factorization only remain approximately valid if the branching ratio for B{sub s} {yields} K{sup -}{pi}{sup +} exceeds its current value of (5.00 {+-} 1.25) x 10{sup -6} by at least 50%, or if a parameter {zeta} describing ratios of form factors and decay constants is shifted from its nominal value by more than twice its estimated error.

• Research Organization: Stanford Linear Accelerator Center (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 927357
• Report Number(s): SLAC-PUB-13184; arXiv:0803.3229
• Journal Information: Physics Letters B, Journal Name: Physics Letters B
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B NEUTRAL MESONS
B PLUS MESONS
B S MESONS
BRANCHING RATIO
FACTORIZATION
FORM FACTORS
KAONS MINUS
PARTICLE DECAY
Phenomenology-HEP
HEPPH
PIONS PLUS
QUANTUM FLAVORDYNAMICS
SU-3 GROUPS
SYMMETRY BREAKING