Gravitational form Factors of Pion in a Nonlocal Quark Model
Abstract
Interaction with external gravitational field is introduced into a nonlocal quark model using the equivalence principle. This allows to define the energy-momentum tensor in flat space and evaluate its hadronic matrix element with external pions. It is found that bubble diagrams give a significant contribution to the corresponding gravitational form factors.
Fields of Study & Subjects
Black Holes and Theoretical Physics
Quantum Chromodynamics and Particle Interactions
High-Energy Particle Collisions Research
Publication details
- Journal / source
- Physics of Particles and Nuclei Letters
- Publisher
- Pleiades Publishing Ltd
- Volume
- 23
- Issue
- 2
- Pages
- 147–154
- Publication date
- 1 April 2026
- Language
- EN