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20 April 2024

» arxiv » nucl-ex/0311003

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Production of eta and eta-prime mesons via the quasi-free proton-neutron interaction
P. Moskal ; H.-H. Adam ; A. Budzanowski ; R. Czyzykiewicz ; D. Grzonka ; M. Janusz ; L. Jarczyk ; T. Johansson ; B. Kamys ; A. Khoukaz ; K. Kilian ; P. Kowina ; W. Oelert ; C. Piskor-Ignatowicz ; J. Przerwa ; T. Rozek ; R. Santo ; G. Schepers ; T. Sefzick ; M. Siemaszko ; J. Smyrski ; A. Strzalkowski ; A. Taschner ; P. Winter ; M. Wolke ; P. Wustner ; W. Zipper ;
Date:	3 Nov 2003
Journal:	AIP Conf. Proc. 717 (2004) 907.
Subject:	nucl-ex
Affiliation:	Julich, Forschungszentrum & Jagellonian U. & Munster U. & Cracow, INP & Uppsala U. & Silesia U.
Abstract:	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.
Source:	arXiv, nucl-ex/0311003
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