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arXiv · hep-ph/9908277

B-> K photon photon via intermediate eta'

Mohammad R. Ahmady
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Abstract

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-> Kγγ)~ 8.7 X 10^{-7} is more than twice as large as the eta_c contribution to this decay mode.

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Mohammad R. Ahmady. 1999-08-05. B-> K photon photon via intermediate eta'. https://doi.org/10.1103/physrevd.61.077503

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