Pion and kaon electromagnetic and gravitational form factors
Pion and kaon electromagnetic and gravitational form factors
Xu, Y.-Z.; Ding, M.; Raya, K.; Roberts, C. D.; Rodríguez-Quintero, J.; Schmidt, S. M.
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.
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Contribution to WWW
https://arxiv.org/abs/2311.14832 -
European Physical Journal C 84(2024), 191
DOI: 10.1140/epjc/s10052-024-12518-x
Permalink: https://www.hzdr.de/publications/Publ-38114