Topics on gauge theories

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5798571

Sarantakos, S

The author studied the radiative corrections of O(..cap alpha..) to the final electron spectrum and the total cross sections for the processes nu/sub ..mu../ + e ..-->..anti nu/sub ..mu../ + e, anti nu/sub ..mu../ + e ..-->.. anti nu/sub ..-->../ + e, nu/sub e/ + e ..-->.. nu/sub e/ + e and anti nu/sub e/ + e ..-->.. anti nu/sub e/ in the framework of the SU(2)/sub L/ x U(1) theory. The electroweak corrections to the first two processes are presented in two equivalent schemes. The QED corrections are evaluated in the extreme relativistic (ER) regime of the final electron (E'/sub e/ >> m/sub e/) for the situation in which the bremsstrahlung photons are unobserved and unrestricted. In addition the author studied by Monte Carlo methods the behavior of non-abelian magnetic fields at high temperatures in the Mack and Petkova modified SU(2) lattice gauge theory which does not contain dynamical magnetic monopoles. His results indicate that magnetic screening at high temperatures is a genuine phenomenon which survives in the continuum limit and not an artifact of the standard Wilson's lattice gauge theory caused by the artificial dynamical magnetic monopoles contained in this theory.

• Research Organization: New York Univ., NY (USA)
• OSTI ID: 5798571
• Country of Publication: United States
• Language: English

Related Subjects

645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTINEUTRINO-ELECTRON INTERACTIONS
CORRECTIONS
CROSS SECTIONS
ELECTRODYNAMICS
ELECTRON NEUTRINOS
ELECTRON SPECTRA
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
INTERACTIONS
LATTICE FIELD THEORY
LEPTON-LEPTON INTERACTIONS
LEPTONS
LIE GROUPS
MAGNETIC FIELDS
MAGNETIC MONOPOLES
MASSLESS PARTICLES
MATHEMATICAL MODELS
MONOPOLES
MONTE CARLO METHOD
MUON NEUTRINOS
NEUTRINO-ELECTRON INTERACTIONS
NEUTRINOS
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
SCATTERING
SPECTRA
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
TOTAL CROSS SECTIONS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
WEINBERG-SALAM GAUGE MODEL