Published December 31, 2006
| Version v1
Journal article
Anomalous Enhancement of a Penguin Hadronic Matrix Element in B→Kη'
Creators
- 1. Institut de Physique Theorique and Centre for Particle Physics and Phenomenology (CP3) Universite Catholique de Louvain, Chemin du Cyclotron 2, B-1348 Louvain-la-Neuve (Belgium)
Description
We estimate the density matrix element for the π0, η, and η' production from the vacuum in the large-Nc limit. As a consequence, we find that the QCD axial anomaly leads to highly nontrivial corrections to the usual flavor SU(3) relations between B0→K0π0, B0→K0η, and B0→K0η' decay amplitudes. These corrections may explain why the B→Kη' branching ratio is about 6 times larger than the B→Kπ one
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.97.261804;
- arXiv
- arXiv:hep-ph/0609300v1;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 97
- Journal Issue
- 26
- Journal Page Range
- p. 261804-261804.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38024502
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- B NEUTRAL MESONS; BRANCHING RATIO; DECAY AMPLITUDES; DENSITY MATRIX; ETA MESONS; FLAVOR MODEL; KAONS NEUTRAL; MATRIX ELEMENTS; PARTICLE DECAY; PARTICLE PRODUCTION; PIONS NEUTRAL; QUANTUM CHROMODYNAMICS; SU-3 GROUPS
- Descriptors DEC
- AMPLITUDES; B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; COMPOSITE MODELS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; KAONS; LIE GROUPS; MATHEMATICAL MODELS; MATRICES; MESONS; PARTICLE MODELS; PIONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARK MODEL; STRANGE MESONS; STRANGE PARTICLES; SU GROUPS; SYMMETRY GROUPS; TRANSITION AMPLITUDES
Optional Information
- Notes
- (c) 2006 The American Physical Society