B -> K eta(') decay in perturbative QCD

Details B -> K eta(') decay in perturbative QCD B -> K eta(') decay in perturbative QCD

2001-06-14

arxiv.org/abs/hep-ph/0106159v4

Phys.Lett. B525 (2002) 240-248

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTex, axodraw style file

Scientific paper

10.1016/S0370-2693(01)01454-X

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.

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