Nucleon-antinucleon interaction
Conference
·
OSTI ID:5772545
The current status of our understanding of the low energy nucleon-antinucleon (N anti N) interaction is reviewed. We compare several phenomenological models which fit the available N anti N cross section data. The more realistic of these models employ an annihilation potential W(r) which is spin, isospin and energy dependent. The microscopic origins for these dependences are discussed in terms of quark rearrangement and annihilation processes. It is argued that the study of N anti N annihilation offers a powerful means of studying quark dynamics at short distances. We also discuss how one may try to isolate coherent meson exchange contributions to the medium and long range part of the N anti N potential. These pieces of the N anti N interaction are calculable via the G-parity transformation from a model for the NN potential; their effects are predicted to be seen in N anti N spin observables, to be measured at LEAR. The possible existence of quasi-stable bound states or resonances of the anti N plus one or more nucleons is discussed, with emphasis on few-body systems. 42 references.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5772545
- Report Number(s):
- BNL-33502; CONF-830862-6; ON: DE83016698
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645202 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645205* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 0-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
ANNIHILATION
BAG MODEL
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BOSON-EXCHANGE MODELS
COMPOSITE MODELS
CROSS SECTIONS
DOCUMENT TYPES
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
G PARITY
HADRON-HADRON INTERACTIONS
INTERACTIONS
ISOSPIN
MASS SPECTRA
MATHEMATICAL MODELS
NUCLEON-ANTINUCLEON INTERACTIONS
OBE MODEL
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERIPHERAL MODELS
POSTULATED PARTICLES
QUARK MODEL
QUARKS
REVIEWS
SPECTRA
SPIN
645205* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 0-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
ANNIHILATION
BAG MODEL
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BOSON-EXCHANGE MODELS
COMPOSITE MODELS
CROSS SECTIONS
DOCUMENT TYPES
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
G PARITY
HADRON-HADRON INTERACTIONS
INTERACTIONS
ISOSPIN
MASS SPECTRA
MATHEMATICAL MODELS
NUCLEON-ANTINUCLEON INTERACTIONS
OBE MODEL
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERIPHERAL MODELS
POSTULATED PARTICLES
QUARK MODEL
QUARKS
REVIEWS
SPECTRA
SPIN