In search of baryonium

Recent experimental hints of the existence of nucleon-antinucleon quasi-bound states are presented and discussed. One, very broad and weakly bound S wave state is indicated in two decay modes of the J/Ψ meson. It finds additional support in the level widths measured in light antiprotonic atoms. Anot...

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Veröffentlicht in:	Journal of physics. Conference series 2012-01, Vol.374 (1), p.12002-8
Hauptverfasser:	Wycech, S, Dedonder, J P, Loiseau, B
Format:	Artikel
Sprache:	eng
Schlagworte:	Antinucleons Atomic properties Baryons Decay Mesons Neural networks P waves Paris Physics S waves Searching
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description	Recent experimental hints of the existence of nucleon-antinucleon quasi-bound states are presented and discussed. One, very broad and weakly bound S wave state is indicated in two decay modes of the J/Ψ meson. It finds additional support in the level widths measured in light antiprotonic atoms. Another, a narrow P-wave state, is found instrumental in the understanding of several results obtained in heavy antiprotonic atoms. Both states have a natural explanation in a fairly traditional Paris potential model of the N interactions.
doi_str_mv	10.1088/1742-6596/374/1/012002
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subjects	Antinucleons Atomic properties Baryons Decay Mesons Neural networks P waves Paris Physics S waves Searching
title	In search of baryonium
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