Gravitational form factors of the delta resonance in chiral EFT

TL;DR

This paper calculates the one-loop corrections to the gravitational form factors of the delta resonance using chiral effective field theory, providing insights into its internal structure and energy-momentum distribution.

Contribution

It presents the first detailed calculation of delta resonance gravitational form factors at one-loop level within chiral EFT, including renormalization and numerical analysis.

Findings

Expressions for static gravitational form factors derived

Real and imaginary parts of form factors computed numerically

Renormalization of low-energy constants analyzed

Abstract

The leading one-loop corrections to the gravitational form factors of the delta resonance are calculated in the framework of chiral effective field theory. Various contributions to the energy-momentum tensor and the renormalization of the low-energy constants are worked out. Using the small scale expansion, expressions for static quantities are obtained and the real and imaginary parts of the gravitational form factors are calculated numerically.