Renormalization of chiral perturbation theory with spinless matter field in curved spacetime
Abstract
A bstract We generalize chiral perturbation theory with spinless matter fields in the fundamental representation of SU( N ) to curved spacetime in the presence of an external gravitational field. This work is motivated by recent interest in investigating energy-momentum tensor matrix elements of matter fields. The complete chiral Lagrangian is constructed, including both minimal extensions from flat spacetime and new curvature-induced terms, up to the next-to-next-to-leading order in the chiral expansion, $$ \mathcal{O}\left({p}^3\right) $$ O p 3 . We perform a systematic one-loop renormalization of the generating functional using the background field method combined with the heat-kernel technique, and explicitly compute the resulting ultraviolet divergences.
Fields of Study & Subjects
Black Holes and Theoretical Physics
Pulsars and Gravitational Waves Research
Quantum Chromodynamics and Particle Interactions
Publication details
- Journal / source
- Journal of High Energy Physics
- Publisher
- Springer Science and Business Media LLC
- Volume
- 2026
- Issue
- 3
- Publication date
- 18 March 2026
- Language
- EN