2015/11/18 by G. I. Gakh, Gakh, G. I., M. I. Konchatnij +3
Materials Science · Physics and Astronomy · #Advanced X-ray Imaging Techniques #Crystallography and Radiation Phenomena #Electron and X-Ray Spectroscopy Techniques #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.1511.05722
34 pages,11 figures, new version with minor changes
openalex publication_date 2015/11/18 · arxiv created 2015/12/11 · arxiv updated 2015/12/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Polarized and unpolarized observables in the process of the triplet photoproduction on a free electron, γ+e→ e+e+e, have been calculated in the laboratory system. These observables are calculated in the approximation when the Borsellino and γ-e diagrams are taken into account. Using the method of the invariant integration over the produced electron-positron pair variables, the different distributions were obtained in the analytical form. We obtain the double distribution over the q2 (the square of the four-momentum transfer to the recoil electron) and Q2 (the created e+e--pair invariant mass squared) variables, and single distributions over q2 or Q2 variables. We consider the following cases: unpolarized particles, the photon beam is linearly polarized and circularly polarized photon beam interacts with a polarized electron target. The influence of the γ-e terms on the calculated observables has been investigated. The possibility to use this process for the measurement of the circular polarization of the high-energy photon beam is also considered. The numerical estimations of various polarization observables have been done.