Dynamical Self-mass for Massive Quarks

Details Dynamical Self-mass for Massive Quarks Dynamical Self-mass for Massive Quarks

1992-06-25

arxiv.org/abs/hep-ph/9206250v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages in Latex, SFU-Preprint-92-6

Scientific paper

We examine dynamical mass generation in QCD with large current mass quarks. A renormalization group analysis is performed to separate fermion self-mass into a dynamical and a kinematical part. It is shown that the energy scale og the Schwinger-Dyson (SD) equation and the effective gauge coupling are fixed by the current mass. The dynamical self-mass satisfies a homogeneous SD equation which has a trivial solution when the current mass exceeds a critical value. We therefore suggest that the quark condensate, as the function of the current mass, observes a local minimum around 2.7\Lambda_(QCD).

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