Differential cross section predictions for PRad-II from dispersion theory

Autor: Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Physics Letters B, Vol 827, Iss , Pp 136981- (2022)
Druh dokumentu: article
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2022.136981
Popis: We predict the differential cross sections for e−p and e+p elastic scattering in the PRad-II energy region. The prediction is based on form factors obtained in our previous high-precision analysis of space- and time-like data from dispersion theory and different sets of two-photon exchange corrections. We investigate the sensitivity of the cross sections to two-photon exchange effects and find that the differences between model calculations and phenomenological extractions of two-photon corrections can not be resolved if the uncertainty in the form factors is taken into account.
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