Recognition: unknown
Instantons and color symmetry breaking in the vacuum
classification
✦ hep-ph
nucl-th
keywords
colorbreakinginstantonoctetpotentialvacuumchannelscompatible
read the original abstract
The instanton interaction in QCD generates an effective potential for scalar quark-antiquark condensates in the color singlet and octet channels. For three light quark flavors the cubic term in this potential induces an octet condensate and ``spontaneous breaking'' of color in the vacuum. Realistic masses of the rho- and eta'-mesons are compatible with renormalization-group-improved instanton perturbation theory.
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