(Intermediate/high energy nuclear physics)
We have continued to develop a theoretical framework for the quark and gluon structure of nuclei. Our approach features a successful phenomenological model, the quark cluster model (QCM), and an ambitious program in the non-perturbative solution of quantum field theories. The effort in quantum field theory provides theoretical results to test or replace assumed ingredients of the QCM. Our primary emphasis in field theory continues to be the solution of non-perturbative problems. Two prominent examples are the development and solution of relativistic two-body wave equations for bound states and resonances and the development of methods for solving field theories via light-front quantization which include the treatment of a dynamical vacuum. An important spin-off from the relativistic two-body wave equation effort has been the solution of QED for electron-positron scattering which is complete through the order of one-photon exchange. Resonances are obtained which are in accord with the electron-positron peaks observed in the GSI heavy-ion experiments. In discovering this resonance phenomena we have uncovered a new scale for phenomena within QED. Although we have much progress to report, many outstanding problems remain. We propose a strong effort in the direction of eventually solving relativistic three-body wave equations for a model of the baryons. We also propose to continue our efforts to develop nonperturbative methods to solve quantum field theories with fermions both on the light-front and with equal time quantization.
- Research Organization:
- Iowa State Univ. of Science and Technology, Ames, IA (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- FG02-87ER40371
- OSTI ID:
- 7001681
- Report Number(s):
- DOE/ER/40371-3; ON: DE90012222; TRN: 90-018923
- Country of Publication:
- United States
- Language:
- English
Similar Records
(Intermediate/high energy probes and the structure of nuclei): Final report
(Intermediate/high energy nuclear physics)
Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
NUCLEAR PHYSICS
RESEARCH PROGRAMS
NUCLEI
QUARK MODEL
CLUSTER MODEL
ELECTRON-POSITRON INTERACTIONS
MANY-BODY PROBLEM
PROGRESS REPORT
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK-GLUON INTERACTIONS
RELATIVISTIC RANGE
THERMODYNAMIC PROPERTIES
WAVE EQUATIONS
COMPOSITE MODELS
DIFFERENTIAL EQUATIONS
DOCUMENT TYPES
ENERGY RANGE
EQUATIONS
FIELD THEORIES
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
NUCLEAR MODELS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PHYSICAL PROPERTIES
PHYSICS
651000* - Nuclear Physics
645000 - High Energy Physics