Work

Mixed gauge-gravity term and proper time

Year: 2025

Type: article

Abstract: We consider the four-dimensional action of spinors minimally coupled to a U ( 1 ) gauge field on a Riemann-Cartan background. In this theory, we integrate over the spinors and study the resulting one-loop gauge-gravity effective action, paying special attention to the contributions that depend on both the gauge field and the torsion. We explicitly calculate the gauge-torsion term, which turns out to be finite, and comment on possible terms depending simultaneously on torsion, curvature, and gauge field.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2025.139956

Authors: J.R. Nascimento, M. Paganelly, A. Yu. Petrov, P.J. Porfírio

Institution: Universidade Federal da Paraíba

Language: English

Topic: Relativity and Gravitational Theory

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Conselho Nacional de Desenvolvimento Científico e Tecnológico

Award: G3085054769