Analyzing power Ay for omega meson production in proton-proton collisions

Abstract

We report on a determination of the analyzing power A(y) in the (p) over right arrowp -> pp omega reaction studied with the TOF spectrometer located at the COSY-accelerator (Forschungszentrum Julich, Germany). This spectrometer is very well suited for polarization measurements due to its rotational symmetry and full coverage of the azimuthal angle. For a beam momentum of p = 3065 MeV/c corresponding to an excess energy of epsilon = 129 MeV A(y) is found to be compatible with zero. (c) 2008 Published by Elsevier B.V