Chiral theory of ρ-meson gravitational form factors

The low-energy chiral effective field theory of vector mesons and Goldstone bosons in an external gravitational field is considered. The energy-momentum tensor is obtained, and the gravitational form factors of the p-meson are calculated up to next-to-leading order in the chiral expansion. This amounts to considering tree-level and one-loop order diagrams. The chiral expansion of the form factors at zero momentum transfer, as well as of the slope parameters, is also performed. Also, the long-range behavior of the energy and internal force distributions is obtained and analyzed.

Automated summary

This paper examines the low-energy chiral effective field theory of vector mesons and Goldstone bosons in an external gravitational field. It calculates the gravitational form factors and slope parameters of the p-meson, and analyzes the chiral expansion at zero momentum transfer and the long-range behavior of energy and internal force distributions.