Eta-prime meson production in nucleon-nucleon collisions near the threshold
Eta-prime meson production in nucleon-nucleon collisions near the threshold
Kaptari, L. P.; Kämpfer, B.
The production of eta' mesons in the reactions pp to ppeta' and pn to pn eta' at threshold-near energies is analyzed within a covariant effective meson-nucleon theory. The description of cross section and angular distributions of the available data in this kinematical region in the pp channel is accomplished by including meson currents and nucleon currents with the resonances S_{11}(1650), P_{11}(1710) and P_{13}(1720). Predictions for the pn channel are given. The di-electron production from subsequent eta' Dalitz decay eta' to gamma gamma^* to gamma e^+e^- is also calculated and numerical results are presented for intermediate energy and kinematics of possible experiments with HADES, CLAS and KEK-PS.
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European Physical Journal A 37(2008), 69-80
DOI: 10.1140/epja/i2008-10622-6
Cited 13 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-11240
Publ.-Id: 11240