Accession Number:

AD0653624

Title:

APPLICATION OF METHODS COMMON TO ELEMENTARY PARTICLE PHYSICS AND MANY-BODY PROBLEMS.

Descriptive Note:

Final rept.,

Corporate Author:

RIO GRANDE DO SUL UNIV PORTO ALEGRE (BRAZIL) INSTITUTO DE FISICA*

Personal Author(s):

• Jacob,Gerhard

Report Date:

1967-05-01

Pagination or Media Count:

12.0

Abstract:

The problem of broken symmetries in Quantum Electrodynamics was investigated. The role played by current non-conservation and the relation of those non-conserved currents to the Goldstone theorem was clarified through a classical example the Heisenberg Ferromagnet and in a Quantum Electrodynamical calculation. It was concluded that spontaneously broken symmetries may be generated by currents with non zero divergence. A distinction is made between two ways of spontaneous symmetry breaking Local breaking and asymptotical breaking. Finally, the problem of electrons as charged neutrinos was studied quantitatively. Four problems in nuclear physics were and are being studied. The first one was solved and is concerned with the exact sum of the four particle correlation diagrams using the Bethe-Faddeev equation. Two problems concerned with p,2p reactions 150-45MeV are under study, and consist of an investigation of quasi-free diffraction scattering in medium weight nuclei and of a consistent calculation of the distorted momentum distribution in light nuclei. Finally, one problem on the statistical perturbations of angular correlations is being worked on. Author

Descriptors:

• *N BODY PROBLEM
• *NUCLEAR REACTIONS
• GROUPS(MATHEMATICS)
• ELEMENTARY PARTICLES
• FIELD THEORY
• INVARIANCE
• NUCLEAR SPINS
• ELECTRONS
• NEUTRINOS
• DIAGRAMS
• PROTON REACTIONS
• NUCLEAR SCATTERING
• QUANTUM STATISTICS
• PERTURBATION THEORY
• NUCLEAR STRUCTURE
• BRAZIL

Subject Categories:

• Nuclear Physics and Elementary Particle Physics
• Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE