Description
Exclusive photoproduction of a gamma-meson pair in the kinematics where the pair has a large invariant mass and the final nucleon has a small transverse momentum is described in the collinear factorization framework. The scattering amplitude is calculated at leading order in alphaS and the differential cross sections for the process are estimated in the kinematics of the JLab 12-GeV experiments.
Authors
Bernard Pire
(CPHT école polytechnique)
Goran Duplancic
(Institute Ruder Boskovic, Zagreb)
Kornelija Passek-Kumericki
(Rudjer Boskovic Institute)
Lech Szymanowski
(National Centre for Nuclear Research)
Renaud Boussarie
(IFJ Krakow)
Dr
Samuel Wallon