Pion and kaon electromagnetic and gravitational form factors
High Energy Physics - Phenomenology
2023-11-28 v1 High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Experiment
Nuclear Theory
Abstract
A unified set of predictions for pion and kaon elastic electromagnetic and gravitational form factors is obtained using a symmetry-preserving truncation of each relevant quantum field equation. A key part of the study is a description of salient aspects of the dressed graviton + quark vertices. The calculations reveal that each meson's mass radius is smaller than its charge radius, matching available empirical inferences; and meson core pressures are commensurate with those in neutron stars. The analysis described herein paves the way for a direct calculation of nucleon gravitational form factors.
Keywords
Cite
@article{arxiv.2311.14832,
title = {Pion and kaon electromagnetic and gravitational form factors},
author = {Yin-Zhen Xu and Minghui Ding and Khépani Raya and Craig D. Roberts and José Rodríguez-Quintero and Sebastian M. Schmidt},
journal= {arXiv preprint arXiv:2311.14832},
year = {2023}
}
Comments
12 pages, 4 figures, 3 tables