Pseudo-scalar. pi. N coupling and relativistic proton-nucleus scattering

Technical Report · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6551516

Gross, F; Maung, K M; Tjon, J A; Townsend, L W; Wallace, S J

Relativistic p-/sup 40/Ca elastic scattering observables are calculated using relativistic NN amplitudes obtained from the solution of a two-body relativistic equation in which one particle is kept on its mass-shell. Results at 200 MeV are presented for two sets of NN amplitudes, one with pure pseudo-vector coupling for the pion and another with a 25% admixture of pseudo-scalar coupling. Both give a very good fit to the positive energy on-shell NN data. Differences between the predictions of these two models (which are shown to be due only to the differences in their corresponding negative energy amplitudes) provide a measure of the uncertainty in constructing Dirac optical potentials from NN amplitudes. 12 refs., 2 figs.

• Research Organization: Southeastern Universities Research Association, Newport News, VA (USA). Continuous Electron Beam Accelerator Facility
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 6551516
• Report Number(s): DOE/ER/40150-50; CEBAF-PR-88-010; ON: DE89005551
• Country of Publication: United States
• Language: English

Related Subjects

645103 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON REACTIONS
CALCIUM 40 TARGET
CHARGED-PARTICLE REACTIONS
COUPLING
CROSS SECTIONS
ELASTIC SCATTERING
ENERGY RANGE
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEON-NUCLEON POTENTIAL
PARTICLE INTERACTIONS
PION-NUCLEON INTERACTIONS
POTENTIALS
PROTON REACTIONS
PSEUDOSCALARS
PSEUDOVECTOR COUPLING
RELATIVISTIC RANGE
SCATTERING
TARGETS