Abstract
The renormalisation structure of gauge models in curved spacetime with torsion is considered. For Abelian theory the classical action, leading to multiplicatively renormalised theory, is constructed. The multiplicativity of renormalisation requires nonminimal coupling of a vector Abelian field with torsion. The authors investigate the renormalisation group equations for effective nonminimal coupling constants in nonAbelian theory. They find that the equations for essential nonminimal couplings have the universal structure. Due to radiative corrections the interaction between spinor fields and torsion become more intense in the strong gravitational field.
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