Pseudoscalar meson transition form factors

Abstract

Present-day experimental and phenomenological situation about pseudoscalar (${\pi }^0$, $\eta$, ${\eta }^{\prime }$) meson transition form factors is briefly reviewed. Necessity of more sophisticated behaviours in time-like region of these form factors is emphasized. Four-resonance unitary and analytic model of the pseudoscalar meson transition form factors is constructed, which describes well all existing experimental information.

arXiv comment3 eps figures. Contribution presented at the PHOTON'03, April 7-11, 2003, Frascati (Roma), Italy

Cited by in corpus (1)

• Vector meson dominance and the pi^0 transition form factor