Antinucleon-nucleus elastic and inelastic scattering

Technical Report · Tue Jan 01 00:00:00 EST 1985

DOI:https://doi.org/10.2172/5668582· OSTI ID:5668582

Dover, C B; Millener, D J

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, 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. 40 refs., 13 figs.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5668582
• Report Number(s): BNL-36438; CONF-850315-4; ON: DE85012510
• Resource Relation: Conference: Conference on antinucleon and nucleon-nucleus interactions, Telluride, CO, USA, 18 Mar 1985
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTINUCLEON REACTIONS
ELASTIC SCATTERING
INELASTIC SCATTERING
DIFFERENTIAL CROSS SECTIONS
EXCITATION
EXPERIMENTAL DATA
NUCLEAR STRUCTURE
NUCLEON-ANTINUCLEON INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
POTENTIALS
SPIN FLIP
TRANSITION AMPLITUDES
AMPLITUDES
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
CROSS SECTIONS
DATA
ENERGY-LEVEL TRANSITIONS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INFORMATION
INTERACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
PARTICLE INTERACTIONS
SCATTERING
651100* - Nuclear Physics- Experimental Techniques- (1980-)