QCD PREDICTIONS FOR PSEUDOSCALAR PRODUCTION IN RADIATIVE DECAYS OF HEAVY VECTOR-MESONS
Journal or Book Title
PHYSICS LETTERS B
We study the reaction ψ → Mγ where M is a pseudoscalar meson, using QCD and a heavy quark mass expansion. We find that the matrix element is not short distance dominated, contrary to conventional assumption, and predict the rates of radiative υ decay in terms of those in ψ decay.
Donoghue, JF and GOMM, H, "QCD PREDICTIONS FOR PSEUDOSCALAR PRODUCTION IN RADIATIVE DECAYS OF HEAVY VECTOR-MESONS" (1983). PHYSICS LETTERS B. 220.
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