Chiral theory of $\rho$-meson gravitational form factors
High Energy Physics - Phenomenology
2022-02-03 v1 High Energy Physics - Lattice
High Energy Physics - Theory
Nuclear Theory
Abstract
The low-energy chiral effective field theory of vector mesons and Goldstone bosons in external gravitational field is considered. The energy-momentum tensor is obtained and the gravitational form factors of the -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 worked out. Also, the long-range behaviour of the energy and internal force distributions is obtained and analysed.
Keywords
Cite
@article{arxiv.2109.10826,
title = {Chiral theory of $\rho$-meson gravitational form factors},
author = {E. Epelbaum and J. Gegelia and U. -G. Meißner and M. V. Polyakov},
journal= {arXiv preprint arXiv:2109.10826},
year = {2022}
}
Comments
11 pages, 1 figure