Dynamical mechanism of symmetry breaking and generation of particle masses in gauge field theories

Journal Article · Wed May 01 04:00:00 EDT 1985 · Sov. J. Particles Nucl. (Engl. Transl.); (United States)

OSTI ID:5213169

Miranskii, V A; Fomin, P I

The dynamics of spontaneous symmetry breaking and the generation of particle masses in gauge theories without fundamental scalar fields is considered. The main attention is devoted to the mechanism of symmetry breaking associated with the dynamics of supercritical Coulomb-like forces due to the exchange of gauge bosons between fermions. This mechanism is applied to various gauge theories, in particular, to the description of the spontaneous breaking of chiral symmetry in quantum chromodynamics (QCD). Mass relations are obtained for the nonet of pseudoscalar mesons, and a dynamical realization of the hypothesis of partial conservation of the axial-vector currents is given. The scalar mesons are described qualitatively. The nature of the ultraviolet divergences in quantum electrodynamics (QED) is investigated from the point of view of the dynamics of fermion mass generation. A mechanism is pointed out by means of which QED with a large bare coupling constant can exhibit additional (as compared with perturbation theory) ultraviolet divergences. The physical phenomenon behind the mechanism can be classified as the field analog of the quantum-mechanical phenomenon of ''fall to the center.'' It is shown that a similar phenomenon occurs for a number of two-dimensional field models. In addition, the dynamics of bifermion condensate formation in tumbling gauge theories is discussed briefly.

• Research Organization: Institute of Theoretical Physics, Ukrainian Academy of Sciences, Kiev
• OSTI ID: 5213169
• Journal Information: Sov. J. Particles Nucl. (Engl. Transl.); (United States), Journal Name: Sov. J. Particles Nucl. (Engl. Transl.); (United States) Vol. 16:3; ISSN SJPNA
• Country of Publication: United States
• Language: English

Related Subjects

645301 -- High Energy Physics-- Particle Invariance Principles & Symmetries-- General-- (-1987)
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
ELECTRODYNAMICS
FERMIONS
FIELD THEORIES
GAUGE INVARIANCE
INVARIANCE PRINCIPLES
MASS FORMULAE
MESON NONETS
MULTIPLETS
PARTICLE MULTIPLETS
PCAC THEORY
QUANTUM CHROMODYNAMICS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
SYMMETRY
SYMMETRY BREAKING
ULTRAVIOLET DIVERGENCES