B -> K eta(') decay in perturbative QCD
High Energy Physics - Phenomenology
2009-11-07 v4
Abstract
We compute B->K eta' branching ratio using perturbative QCD approach. We show that a triangular relation among amplitudes for B^0->K^0 pi^0, B^0->K^0 eta, B^0->K^0 eta' receives large corrections from SU(3) breaking effects. If experimental value will come closer to the lower limit of the present BELLE data there will be a possibility to understand the large branching ratio of B^0->K^0 eta'. Otherwise, we perhaps need to modify our understanding of eta' meson, for example, inclusion of a possible admixture of gluonium state.
Keywords
Cite
@article{arxiv.hep-ph/0106159,
title = {B -> K eta(') decay in perturbative QCD},
author = {E. Kou and A. I. Sanda},
journal= {arXiv preprint arXiv:hep-ph/0106159},
year = {2009}
}
Comments
15 pages, LaTex, axodraw style file