Isospin dependence of the eta prime meson production in nucleon-nucleon collisions

Abstract

A comparison of the close-to-threshold total cross section for the eta prime production in pp --> pp eta prime and pn --> pn eta prime reactions constitutes a tool to investigate the eta prime meson structure and the reaction mechanism in the channels of isospin I=0 and I=1 and may provide insight into the flavour-singlet (perhaps also into gluonium) content of the eta prime meson. In this contribution we present preliminary results of measurement of the quasi-free production of the eta prime meson in the proton-neutron collisions conducted using the COSY-11 facility.

arXiv commentPresented at 10th International Workshop on Meson Production, Properties and Interaction (MESON 2008), Cracow, Poland, 6 - 10 June 2008

References in corpus (5)

• Gluons and the eta' nucleon coupling constant
• eta' meson production in proton-proton collisions
• A method to disentangle single- and multi-meson production in missing mass spectra from quasi-free pn --> pn X reactions
• Luminosity determination for the quasi-free nuclear reactions
• Search for Bremsstrahlung radiation in quasi-free n p --> n p gamma reactions