Gravitational corrections to the two-loop beta function in a non-Abelian gauge theory
arXiv:2408.02512 · doi:10.1103/PhysRevD.110.065007
Abstract
This paper investigates the coupling of massive fermions to gravity within the context of a non-Abelian gauge theory, utilizing the effective field theory framework for quantum gravity. Specifically, we calculate the two-loop beta function of the gauge coupling constant in a non-Abelian gauge theory, employing the one-graviton exchange approximation. Our findings reveal that gravitational corrections may lead to a non-trivial UV fixed point in the beta function of the gauge coupling constant, contingent upon the specific gauge group and the quantity of fermions involved.
16 pages, 5 figures
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