Antiproton-nucleus inelastic scattering and the spin-isospin dependence of the N anti N interaction

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5858892

Dover, C B

A general overview of the utility of antinucleon (anti N)-nucleus inelastic scattering studies is presented, emphasizing both the sensitivity of the cross sections to various components of the N anti N transition amplitudes and the prospects for the exploration of some novel aspects of nuclear structure. We start with an examination of the relation between NN and N anti N potentials, focusing on the coherences predicted for the central, spin-orbit and tensor components, and how these may be revealed by measurements of two-body spin observables. We next discuss the role of the nucleus as a spin and isospin filter, and show how, by a judicious choice of final state quantum numbers (natural or unnatural parity states, isospin transfer ..delta..T=0 or 1) and momentum transfer q, one can isolate different components of the N anti N transition amplitude. Various models for the N anti N interaction which give reasonable fits to the available two-body data are shown to lead to strikingly different predictions for certain spin-flip nuclear transitions. We suggest several possible directions for future anti N-nucleus inelastic scattering experiments at LEAR, for instance the study of spin observables which would be accessible with polarized anti N beams, charge exchange reactions, and higher resolution studies of the (anti p, anti p') reaction. We compare the antinucleon and the nucleon as a probe of nuclear modes of excitation. 34 refs.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5858892
• Report Number(s): BNL-36234; CONF-850152-4; ON: DE85010546
• Country of Publication: United States
• Language: English

Related Subjects

651723 -- Nuclear Properties & Reactions
A=90-149
Experimental-- Energy Levels & Transitions-- (-1987)
651725* -- Nuclear Properties & Reactions
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Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
ANTINUCLEON REACTIONS
ANTIPROTON REACTIONS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BEAMS
BOSON-EXCHANGE MODELS
CARBON 12
CARBON 12 TARGET
CARBON ISOTOPES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
ISOSPIN
ISOTOPES
LEAR
LIGHT NUCLEI
MATHEMATICAL MODELS
MOMENTUM TRANSFER
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
NUCLEI
NUCLEON REACTIONS
NUCLEON-ANTINUCLEON INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
OBE MODEL
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERIPHERAL MODELS
POLARIZED BEAMS
POTENTIALS
SCATTERING
SPIN
SPIN FLIP
STABLE ISOTOPES
STORAGE RINGS
TARGETS