Radiative corrections to the lepton current in unpolarized elastic -interaction for fixed and scattering angle
arXiv:2106.11103 · doi:10.1140/epja/s10050-021-00582-w
Abstract
The kinematical difference between the description of radiative effects for fixed vs a fixed scattering angle in the elastic lepton-proton ()-scattering is discussed. The technique of calculation as well as explicit expressions for radiative corrections to the lepton current in unpolarized elastic -scattering for these two cases are presented without using an ultrarelativistic approximation. A comparative numerical analysis within kinematic conditions of Jefferson Lab measurements and MUSE experiment in PSI is performed.
12 pages, 5 figures, published in European Physical Journal A Topical Issue 'An Experimental Program with Positron Beams at Jefferson Lab'