TY - JOUR
T1 - The quark triangle: Application to pion and eta decays
AU - Ametller, Ll
AU - Bergström, L.
AU - Bramon, A.
AU - Massó, E.
PY - 1983/11/21
Y1 - 1983/11/21
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/0000984725
U2 - 10.1016/0550-3213(83)90326-7
DO - 10.1016/0550-3213(83)90326-7
M3 - Article
SN - 0550-3213
VL - 228
SP - 301
EP - 315
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 2
ER -