Radiative corrections to the lepton current in unpolarized elastic $lp$-interaction for fixed $Q^2$ and scattering angle
- Resource Type
- Working Paper
- Authors
- Afanasev, A.; Ilyichev, A.
- Source
- Eur.Phys.J. A (2021) 57:280
- Subject
- High Energy Physics - Phenomenology
- Language
The kinematical difference between the description of radiative effects for fixed $Q^2$ 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.
Comment: 12 pages, 5 figures, published in European Physical Journal A Topical Issue 'An Experimental Program with Positron Beams at Jefferson Lab'