Tests for the asymptotic behavior of the gamma* ---> gamma pi0 form-factor
(1998) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. B425, p. 365-368 (1998)
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- (en) The gamma^* --> gamma pi^0 transition measured at different photon virtualities already provides us with a clean test for the behaviour of the pi^0 gamma^* gamma off-shell axial anomaly at large time-like squared momenta. It also allows reliable predictions for the branching ratio of heavy quarkonium decays into omega pi^0. Comment: Latex, 7 pages + 1 .ps figure, comments on the Brodsky-Lepage limit and 5 new references added
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Gérard, J.-M., & Lopez Castro, G. (1998). Tests for the asymptotic behavior of the gamma* ---> gamma pi0 form-factor. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, B425, 365-368. https://doi.org/10.1016/S0370-2693(98)00245-7 (Original work published 1998)