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Gluon condensate and the vacuum structure of QCD

R. Vilela Mendes
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Abstract

Phenomenological evidence and analytic approximations to the QCD ground state suggest a complex gluon condensate structure. Exclusion of elementary fermion excitations by the generation of infinite mass corrections is a consequence. In addition the existence of vacuum condensates in unbroken non-abelian gauge theories, endows SU(3) and higher order groups with a non-trivial structure in the manifold of possible vacuum solutions, which is not present in SU(2). This may be related to the existence of particle generations.

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R. Vilela Mendes. 1998-01-13. Gluon condensate and the vacuum structure of QCD. https://arxiv.org/abs/hep-th/9801077

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