Nonperturbative propagators in quantum chromodynamics | Zendy

Tomas I. Larsson | Zendy

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Nonperturbative propagators in quantum chromodynamics

Author(s) -

Tomas I. Larsson

Publication year - 1985

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Language(s) - English

Resource type - Journals

eISSN - 1089-4918

pISSN - 0556-2821

DOI - 10.1103/physrevd.32.956

Subject(s) - propagator , physics , gluon , particle physics , quantum chromodynamics , quark , normalization (sociology) , quantum electrodynamics , mathematical physics , sociology , anthropology

Leading nonperturbative corrections to the quark and gluon propagators are derived following the assumption that the nonperturbative QCD vacuum can be described in terms of non-vanishing vacuum expectation values for the com- posite operators (T&I and (GEY). Th e nonperturbative quark propagator can be described in terms of a running quark mass and a running normalization func- tion. These quantities are shown to be gauge independent. The nonperturbative gluon propagator can be described in terms of a running gauge parameter and a running normalization function.

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