Published December 31, 2006 | Version v1
Journal article

Anomalous Enhancement of a Penguin Hadronic Matrix Element in B→Kη'

  • 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

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

Optional Information

Notes
(c) 2006 The American Physical Society