On Quasiparticles within the Refined Gribov-Zwanziger Model
Felipe F. Garcia, Marcio A. L. Capri, Bruno W. Mintz
Abstract
The problem of the effective excitations of a gauge theory in the nonperturbative regime remains not completely understood. Using the Refined Gribov-Zwanziger (RGZ) theory as effective model for pure gauge Yang-Mills theories, we revisit the quasiparticle (quadratic) excitations of the theory. A novel interpretation of such quasiparticles is proposed, in the case of real mass poles, taking into account the manifest PT-symmetry of the RGZ Lagrangian.
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