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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Bibliographic Details
Published in:Journal of physics. Conference series 2012-01, Vol.374 (1), p.12002-8
Main Authors: Wycech, S, Dedonder, J P, Loiseau, B
Format: Article
Language:English
Subjects:
Antinucleons
Atomic properties
Baryons
Decay
Mesons
Neural networks
P waves
Paris
Physics
S waves
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Summary: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.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/374/1/012002