Neutral pseudoscalar meson decays: pi0 -} gamma gamma and eta -} gamma gamma in SU(3) limit

Abstrakt

Present and planned experiments motivate new theoretical study of properties of light unflavoured pseudoscalar meson decays. An overview including details on two-loop calculation in SU(3) limit is given.

Klíčová slova

• chiral perturbation theory
• radiative decay of pi(0)
• higher-order correction