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eta PRODUCTION IN PROTON-PROTON COLLISIONS AT 72 MeV EXCESS ENERGY
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy.
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2009 (English)In: International Journal of Modern Physics A, ISSN 0217-751X, E-ISSN 1793-656X, Vol. 24, no 2-3, 446-449 p.Article in journal (Refereed) Published
Abstract [en]

The production of eta mesons at an excess energy of 72 MeV has been studied in the reaction pp -> pp(eta)gamma gamma. It is shown that a simple model with Pp. final states included reproduces observed differential distributions better than the same model restricted to Ss, Sd and Ds final states. The strong influence of the Pp states could be taken as an indication of rho dominance within an one boson exchange model for the excitation of N*(1535).

Place, publisher, year, edition, pages
2009. Vol. 24, no 2-3, 446-449 p.
Keyword [en]
Eta meson, near-threshold production
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-149120DOI: 10.1142/S0217751X0904381XISI: 000263880300038OAI: oai:DiVA.org:uu-149120DiVA: diva2:404086
Available from: 2011-03-15 Created: 2011-03-15 Last updated: 2017-12-11Bibliographically approved

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Kupsc, AndrzejSchönning, Karin

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