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. We propose a strong effort in the direction of eventually solving relativistic three-body wave equations for a model of the baryons. Although we have much progress to report, many outstanding problems remain. In discovering this resonance phenomena we have uncovered a new scale for phenomena within QED. Resonances are obtained which are in accord with the electron-positron peaks observed in the GSI heavy-ion experiments. 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. Several nuclear physics codes are capable of scaling to more than 100,000 cores on Oak Ridge National Laboratory's petaflop Cray XT5 system, Jaguar. 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 more » light-front quantization which include the treatment of a dynamical vacuum. Scientists studying the structure and behavior of the atomic nucleus require immense high-performance computing resources to gain scientific insights. Our primary emphasis in field theory continues to be the solution of non-perturbative problems. The effort in quantum field theory provides theoretical results to test or replace assumed ingredients of the QCM. 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. We have continued to develop a theoretical framework for the quark and gluon structure of nuclei.
of Science and Technology, Ames, IA (United States) Sponsoring Org.: USDOE USDOE, Washington, DC (United States) OSTI Identifier: 5083299 Report Number(s): DOE/ER/40371-5 ON: DE92015363 DOE Contract Number: FG02-87ER40371 Resource Type: Technical Report Country of Publication: United States Language: English Subject: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS NUCLEAR PHYSICS RESEARCH PROGRAMS NUCLEON-NUCLEON INTERACTIONS PHOTOPRODUCTION PROGRESS REPORT QUANTUM CHROMODYNAMICS QUANTUM FIELD THEORY QUARK MODEL QUARKONIUM WAVE EQUATIONS BARYON-BARYON INTERACTIONS BASIC INTERACTIONS COMPOSITE MODELS DIFFERENTIAL EQUATIONS DOCUMENT TYPES ELECTROMAGNETIC INTERACTIONS EQUATIONS FIELD THEORIES HADRON-HADRON INTERACTIONS INTERACTIONS MATHEMATICAL MODELS PARTIAL DIFFERENTIAL EQUATIONS PARTICLE INTERACTIONS PARTICLE MODELS PARTICLE PRODUCTION PHYSICS 663000* - Nuclear Physics- (1992-) 662230 - Quantum Chromodynamics- (1992-)
Authors: Vary, J P Publication Date: Wed Jan 01 00:00: Research Org.: Iowa State Univ.
0 kommentar(er)
