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Production of eta and eta-prime mesons via the quasi-free proton-neutron interaction

Production of eta and eta-prime mesons via the quasi-free proton-neutron interaction,10.1063/1.1799817,P. Moskal,H.-H. Adam,A. Budzanowski,R. Czyzykie

Production of eta and eta-prime mesons via the quasi-free proton-neutron interaction  
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P. Moskal, H.-H. Adam, A. Budzanowski, R. Czyzykiewicz, D. Grzonka, M. Janusz, L. Jarczyk, T. Johansson, B. Kamys, A. Khoukaz, K. Kilian, P. Kowinahttp://academic.research.microsoft.com/io.ashx?type=5&id=27736225&selfId1=0&selfId2=0&maxNumber=12&query=
A comparison of the close-to-threshold total cross sections for the eta-prime meson production in both the pp --> pp eta-prime and pn --> pn eta-prime reactions should provide insight into the flavour-singlet (perhaps also into gluonium) content of the eta-prime meson and the relevance of quark-gluon or hadronic degrees of freedom in the creation process. The excitation function for the reaction pp --> pp eta-prime has been already established. At present, experimental investigations of the quasi-free pn --> pn X reactions are carried out at the COSY-11 facility using a beam of stochastically cooled protons and the deuteron cluster target. A method of measurement and preliminary results from the test experiments of the pn --> pn eta reaction are presented in this report.
Published in 2003.
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