General analysis of polarization phenomena in $ e^++e^-\to N+\bar N$ for axial parametrization of two--photon exchange

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/177934General properties of the differential cross section and of the polarization observables are derived for the $e^++e^-\to N+\bar N$ reaction, in presence of two--photon exchange. Polarization effects are investigated for longitudinally polarized electron and polarized antinucleon and/or polarized nucleon in the final state. The single--spin asymmetry induced by the transverse polarization of the electron beam is also discussed.18 pagesHigh Energy Physics - PhenomenologyGeneral analysis of polarization phenomena in $ e^++e^-\to N+\bar N$ for axial parametrization of two--photon exchangetext