Journal Article

PreJuSER-34078

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Near threshold production of eta, eta' and charged kaon pairs in proton-proton collisions

Khoukaz, A. ; Adam, H. H. ; Balewski, J. T. ; Budzanowski, A. ; Goodman, C. ; Grzonka, D.FZJ* ; Jarczyk, L. ; Jochmann, M. ; Kilian, K.FZJ* ; Lang, N. ; Lister, T. ; Moskal, P.FZJ* ; Oelert, W.FZJ* ; Quentmeier, C. ; Santo, R. ; Schepers, G.FZJ* ; Seddik, U. ; Sefzick, N. Y.FZJ* ; Sewerin, S. ; Smyrski, J. ; Strzalkowski, A. ; Wolke, M.FZJ* ; Wüstner, P.FZJ* ; Wyrwa, D.

2000
North-Holland Publ. Co. Amsterdam

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Abstract: The near threshold production of eta- and eta'-mesons in proton-proton collisions has been measured at excess energies up to 6.3 MeV and 25.0 MeV using the COSY-11 facility. In this region of excess energy the eta' cross sections are much lower compared to pi(0) and eta production. This observation rather excludes a resonant production of the eta'-meson in the threshold region, whereas such a mechanism dominates the eta production close to threshold. Furthermore, close to threshold data on the elementary K+K- production in the proton-proton interaction have been taken at excess energies up to 56.1 MeV.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut für Kernphysik (IKP)
2. Zentralinstitut für Elektronik (ZEL)

Research Program(s):

1. Mittelenergiephysik (20.50.0)

Appears in the scientific report 2000

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