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arXiv · 2408.02512

Gravitational corrections to the two-loop beta function in a non-Abelian gauge theory

M. Gomes·A. C. Lehum·A. J. da Silva
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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.

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M. Gomes, A. C. Lehum, A. J. da Silva. 2024-08-05. Gravitational corrections to the two-loop beta function in a non-Abelian gauge theory. https://doi.org/10.1103/physrevd.110.065007

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