Work

Gauge dependence of momentum running in higher-derivative gravity

Year: 2025

Type: article

Abstract: Recent works [D. Buccio , and D. Buccio , ] have argued that improved one-loop beta-functions capturing the physical momentum dependence of one-loop corrected higher-derivative gravity theories are the most suitable to describe their high-energy behavior. This work critically tests the validity of this claim. We compute the explicit gauge dependence of the one-loop momentum running of curvature-squared operators in quadratic gravity and conformal gravity using the background field method. We find them to be gauge dependent, and we discuss the implications of this result for the theory and its physical predictivity.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/v9ff-g69f

Authors: Diego Buccio, Gustavo P. de Brito, Luca Parente

Institutions: Radboud University Nijmegen, Heidelberg University, Universidade Estadual Paulista (Unesp), University of Pisa, Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Fondazione Angelo Della Riccia, Conselho Nacional de Desenvolvimento Científico e Tecnológico

Awards: G112718410, G525314996