Jarczyk, Lucjan
Single Differential Cross Section
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Total and differential cross sections for the p p --> p p eta' reaction near threshold.

Khoukaz, A. ; Geck, I. ; Quentmeier, C. ; et al.
Eur.Phys.J.A 20 (2004) 345-350, 2004.
Inspire Record 642580 DOI 10.17182/hepdata.43699

The eta-prime meson production in the reaction pp-->pp eta-prime has been studied at excess energies of Q = 26.5, 32.5 and 46.6 MeV using the internal beam facility COSY-11 at the cooler synchrotron COSY. The total cross sections as well as one angular distribution for the highest Q-value are presented. The excitation function of the near threshold data can be described by a pure s-wave phase space distribution with the inclusion of the proton-proton final state interaction and Coulomb effects. The obtained angular distribution of the eta-prime mesons is also consistent with pure s-wave production.

2 data tables
Table 1

Total cross section for the reaction P P --> P P ETAPRIME.

Table 2

Angular distribution of the ETAPRIME in the CM system at an excess energy of 46.6 MeV. There is an additional systematic error of +24%/-35%.