Extraction of {gamma} from charmless hadronic B {yields} PP decays using SU(3) flavor symmetry

Journal Article · Tue Jul 11 04:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2220366· OSTI ID:20875809

Suprun, Denis A ^[1]

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1. High Energy Theory Group, Brookhaven National Laboratory, Upton, NY 11973 (United States)

The decays of B mesons to a pair of charmless pseudoscalar mesons (PP decays) have been analyzed within the framework of flavor SU(3) symmetry and quark-diagrammatic topological approach. Flavor symmetry breaking is taken into account in tree (T) amplitudes through ratios of decay constants fK and f{pi}; exact SU(3) is assumed elsewhere. Acceptable fits to B {yields} PP branching ratios and CP asymmetries are obtained with tree, color-suppressed and QCD penguin amplitudes. Singlet penguin amplitude was introduced to describe decay amplitudes of the modes with {eta} and {eta}' mesons in the final state. Electroweak penguin amplitudes were expressed in terms of the corresponding tree-level diagrams. Values of the weak phase {gamma} were found to be consistent with the current indirect bounds from other analyses of CKM parameters.

• OSTI ID: 20875809
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 842; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
BRANCHING RATIO
COLOR MODEL
DECAY AMPLITUDES
FEYNMAN DIAGRAM
FLAVOR MODEL
HADRONIC PARTICLE DECAY
PROTONS
QUANTUM CHROMODYNAMICS
QUARKS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
TOPOLOGY