Progress report for a research program in theoretical high-energy physics. [Dept. of Physics, Brown Univ]

Technical Report · Wed Oct 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/5071048· OSTI ID:5071048

Feldman, D.; Fried, H. M.; Guralnik, G. S.; Jevicki, A.; Kang, K.; Tan, C. I.

The past year's research has dealt with a wide range of topics in High-Energy Theoretical Physics. Important new results have been found in the fields of large-N expansions in quantum field theories via an effective Hamiltonian technique, and by the method of classical field equations supplemented by quantum boundary conditions; finite lattice QCD at N/sub c/ = infinity; neutrino oscillations and natural flavor conservation in gauge theory; the vanishing of the renormalized effective potential in phi/sub 4//sup 4/ theory; a new method for treating singular differential equations; and an infrared cluster expansion in quantum field theory. In addition, substantial progress has been made in the analyses of lattice gauge theories; studies of factorization properties of mass and infrared singularities in QCD: non-hermitian quantum problems in the context of Gribov field theories; symmetry breaking via contracted groups; the calculation of Cabibbo-type angles and grand unification theories; and strong-coupling methods in gauge and nongauge field theories, using a systematic, lattice-formulated, perturbation theory, and by the extraction of relevant infrared structure.

• Research Organization: Brown Univ., Providence, RI (USA). Dept. of Physics
• DOE Contract Number: AC02-76ER03130
• OSTI ID: 5071048
• Report Number(s): COO-3130TA-352; TRN: 80-018208
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HIGH ENERGY PHYSICS
RESEARCH PROGRAMS
QUANTUM FIELD THEORY
CABIBBO ANGLE
FLAVOR MODEL
LATTICE FIELD THEORY
NEUTRINOS
OSCILLATIONS
PHI4-FIELD THEORY
QUANTUM CHROMODYNAMICS
STRONG-COUPLING MODEL
SYMMETRY BREAKING
UNIFIED GAUGE MODELS
COMPOSITE MODELS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
PARTICLE MODELS
PHYSICS
QUARK MODEL
645400* - High Energy Physics- Field Theory
645200 - High Energy Physics- Particle Interactions & Properties-Theoretical