A short review of experimental and theoretical results on the large angle cross sections "γγ→ twomesons" and the form factors γ*γ→ P = {π, η, η'} is given.
基金supported in part by the RFBR grant 07-02-00361-a
文摘A short review of experimental and theoretical results on the large angle cross sections "γγ→ twomesons" and the form factors γ*γ→ P = {π, η, η'} is given.