Polarisiertes Protonentarget bei Experimenten mit hochenergetischen Teilchen

Radiative proton-antiproton annihilation to a lepton pair

“…[5], where the possibility to measure the nucleon form factors in the time-like region of momentum transfer was discussed. In the paper [6] the case of polarized particles was considered. More recently, single and double spin polarization observables were calculated in frame of different models and applied to the world data [7] in space-like as well as in time-like region.…”