B-> K photon photon via intermediate eta'

Details B-> K photon photon via intermediate eta' B-> K photon photon via intermediate eta'

1999-08-05

arxiv.org/abs/hep-ph/9908277v1

Phys.Rev. D61 (2000) 077503

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, latex, no figures

Scientific paper

10.1103/PhysRevD.61.077503

We examine our previous conjecture that the eta' intermediate resonance has the dominant role in the long distance contributions to B decay into two photons and a strange final state hadron. We calculate the branching ratio of the exclusive B-> K eta'-> K photon photon decay using the nonspectator mechanism for eta' production in charmless hadronic B decays. It is shown that the obtained branching ratio B^eta'(B-> K\gamma\gamma)~ 8.7 X 10^{-7} is more than twice as large as the eta_c contribution to this decay mode.

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