https://doi.org/10.1140/epja/s10050-021-00582-w
Regular Article - Theoretical Physics
Radiative corrections to the lepton current in unpolarized elastic lp-interaction for fixed 
and scattering angle
1
Department of Physics, The George Washington University, 20052, Washington, DC, USA
2
Belarusian State University, 220030, Minsk, Belarus
3
Institute for Nuclear Problems, Belarusian State University, 220006, Minsk, Belarus
Received:
28
February
2021
Accepted:
26
August
2021
Published online:
30
September
2021
The kinematical difference between the description of radiative effects for fixed vs a fixed scattering angle in the elastic lepton–proton (lp)-scattering is discussed. The technique of calculation as well as explicit expressions for radiative corrections to the lepton current in unpolarized elastic lp-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.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
