Work

Pion and kaon electromagnetic and gravitational form factors

Year: 2023

Type: preprint

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.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2311.14832

Authors: Xu, Yin-Zhen, Ding, Minghui, Raya, Khépani, Roberts, Craig D., Rodríguez-Quintero, José, Schmidt, Sebastian M.

Institutions: Universidad de Huelva, Nanjing University, Helmholtz-Zentrum Dresden-Rossendorf, RWTH Aachen University

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Strong, European Commission, National Natural Science Foundation of China, Ministerio de Ciencia e Innovación, Junta de Andalucía

Awards: G14744916, G2088934560, G2341924384, G3111662533, The strong interaction at the frontier of knowledge: fundamental research and applications, G3753556305, G434337789, G6277277183, G6317349381, G6757515635, G7705497243, G8920660035, G905342561

OpenAlex ID: W4389115355

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