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

G. I. Gakh; E. Tomasi-Gustafsson

doi:10.1016/j.nuclphysa.2006.03.009

paper

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

arXiv:hep-ph/0511240 · doi:10.1016/j.nuclphysa.2006.03.009

Abstract

General properties of the differential cross section and of the polarization observables are derived for the $e^{+} + e^{-} \to N + N ˉ$ 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 pages

General analysis of polarization phenomena in e++e−→N+Nˉ for axial parametrization of two--photon exchange

Abstract

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