Triplet Production by Linearly Polarized Photons
I.V. Akushevich, H. Anlauf, E.A. Kuraev, P.G. Ratcliffe, B.G., Shaikhatdenov
TL;DR
This paper investigates electron-positron pair production by linearly polarized photons, analyzing how recoil-electron distributions serve as a polarimeter and calculating corrections at high photon energies.
Contribution
It provides a detailed calculation of power corrections to recoil-electron distributions, enhancing the understanding of photon polarization measurement at high energies.
Findings
Distributions become energy-independent at high photon energies.
Power corrections of order m/omega are quantified.
Deviation estimates for various photon energies are provided.
Abstract
The process of electron-positron pair production by linearly polarized photons is used as a polarimeter to perform mobile measurement of linear photon polarization. In the limit of high photon energies, omega, the distributions of the recoil-electron momentum and azimuthal angle do not depend on the photon energy in the laboratory frame. We calculate the power corrections of order m/omega to the above distributions and estimate the deviation from the asymptotic result for various values of omega.
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