1993•Modern Physics Letters ARequires access

CHIRAL SYMMETRY BREAKING AND THE GLUON CONDENSATE

M. Faber, Andrei N. Ivanov, M. Nagy, N. I. Troitskaya

Abstract

For the low-energy approximation of QCD, the extended Nambu-Jona-Lasinio model has been used. Quarks interact with an external homogeneous color-magnetic field, simulating the contribution of the gluon condensate. The value of the gluon condensate, needed to reach the correct value of the quark condensate, is determined and agrees well with the value obtained from QCD sum rules.

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Key concepts: Physics, Quantum chromodynamics, Gluon, Chiral symmetry breaking, Gluon condensate, Particle physics, Quark, Gluon field