Abstract
A general expression for the two-photon form factor of neutral pseudoscalar mesons is given in a quark triangle model. Various electromagnetic decay amplitudes are calculated, including Dalitz pair decays and the rare decay into a lepton pair, where an old calculation in a similar (nucleon loop) model is corrected. The results are in agreement with other calculations based on vector meson dominance, giving a new example of Q2 duality. Some remarks concerning the soft limit in the processes are given. © 1983.
Original language | English |
---|---|
Pages (from-to) | 301-315 |
Journal | Nuclear Physics, Section B |
Volume | 228 |
Issue number | 2 |
DOIs | |
Publication status | Published - 21 Nov 1983 |