Light Quarks and Instantons

Jun, 1978
124 pages
Published in:
  • Annals Phys. 118 (1979) 429
Report number:
  • PITT-199

Citations per year

19791989199920092019024681012
Abstract: (Elsevier)
Instantons and anti-instantons can profoundly influence the structure of a non-Abelian gauge theory involving N flavors of massless quarks. Interactions of the quarks with these pseudoparticles can spontaneously generate a quark mass, break the theory's SU ( N ) × SU ( N ) chiral symmetry and bind quark-antiquark pairs to form N 2 − 1 Goldstone bosons. If the spontaneously generated quark mass is small, multipseudoparticle configurations can be treated in a dilute gas approximation.
  • GAUGE FIELD THEORY: NONABELIAN
  • QUARK: FLAVOR
  • QUARK: MASSLESS
  • FIELD EQUATIONS: INSTANTON
  • MASS: PRODUCTION
  • PRODUCTION: MASS
  • SYMMETRY: CHIRAL
  • SYMMETRY BREAKING: SU(N) X SU(N)
  • QUARK ANTIQUARK: PAIR
  • FIELD THEORY: GOLDSTONE THEOREM