Eur. Phys. J. C (2007) 52: 173-176
https://doi.org/10.1140/epjc/s10052-007-0363-y

Regular Article - Theoretical Physics

Recoil proton distribution in high energy photoproduction processes

¹ Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 84511, Bratislava, Slovakia
² Joint Institute for Nuclear Research, Dubna, Russia
³ NSC KIPT, Kharkov, Ukraine

^* e-mail: erik.bartos@savba.sk

Received: 28 February 2007
Revised: 13 June 2007
Published online: 24 July 2007

Abstract

For high energy linearly polarized photon–proton scattering we have calculated the azimuthal and polar angle distributions on a recoil proton in the inclusive experimental setup. We have taken into account the production of lepton and pseudoscalar meson charged pairs in the point-like approximation. The typical values of the cross sections are of the order of hundreds of picobarn. The size of the polarization effects are of order of several percents. The results are generalized for the case of electroproduction processes on the proton at rest and for a high energy proton production process on a resting proton.