Quasi-nuclear bound state and multichannel analysis of low-energy nucleon-antinucleon interactions
Journal Article
·
· Physics of Atomic Nuclei
OSTI ID:88753
- Joint Institute for Nuclear Research, Dubna (Russian Federation)
Multichannel M-matrix method is applied to describe a nucleon-antinucleon system at low energies. The s, p, and d waves are involved in the energy-dependent fit of the differential and total cross sections for elastic proton-antiproton scattering and charge-exchange scattering, total cross sections, and real-to-imaginary ratio of the forward amplitude of elastic scattering. The authors analysis, which is practically model-independent, leads to the presence of a bound state in the p wave near the proton-antiproton threshold, which elucidates the significant role of this wave at small energies. The results indicate the isotopic breaking of nucleon-antinucleon interactions at low energies. 32 refs., 7 figs., 1 tab.
- OSTI ID:
- 88753
- Journal Information:
- Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 2 Vol. 58; ISSN 1063-7788; ISSN PANUEO
- Country of Publication:
- United States
- Language:
- English
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