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Evidence against asymptotic freedom from SU(2) lattice gauge theory

Journal Article · · Phys. Rev. Lett.; (United States)
;
A recent result in continuum Yang-Mills theories that exposes the ''essential instability'' of the perturbative ground state is shown to be reproduced by a Monte Carlo SU(2) lattice calculation. A discussion is given of the adverse consequences of our findings upon the validity of asymptotic freedom and the reliability of the lattice strategy for computing the physics of continuum gauge theories.
Research Organization:
Dipartimento di Fisica Universita di Bari, Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
OSTI ID:
6730484
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:21; ISSN PRLTA
Country of Publication:
United States
Language:
English

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Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CONFINEMENT
FIELD THEORIES
GAUGE INVARIANCE
INVARIANCE PRINCIPLES
LATTICE FIELD THEORY
LIE GROUPS
MATHEMATICAL MODELS
MONTE CARLO METHOD
NUCLEAR MODELS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
RENORMALIZATION
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
WEAK-COUPLING MODEL
YANG-MILLS THEORY