Form factors of decuplet baryons in a covariant quark–diquark approach

JiaQi Wang; Dongyan Fu; Yubing Dong

doi:10.1140/epjc/s10052-024-12406-4

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2024 Impact factor 4.8

Particles and Fields

Open Access

Eur. Phys. J. C (2024) 84: 79
https://doi.org/10.1140/epjc/s10052-024-12406-4

Regular Article - Theoretical Physics

Form factors of decuplet baryons in a covariant quark–diquark approach

JiaQi Wang¹^,2^a, Dongyan Fu¹^,2 and Yubing Dong¹^,2

¹ Institute of High Energy Physics, Chinese Academy of Sciences, 100049, Beijing, China
² School of Physical Sciences, University of Chinese Academy of Sciences, 101408, Beijing, China

^a jqwang@ihep.ac.cn

Received: 19 November 2023
Accepted: 5 January 2024
Published online: 24 January 2024

Abstract

The electromagnetic and gravitational form factors of decuplet baryons are systematically studied with a covariant quark–diquark approach. The model parameters are firstly discussed and determined through comparison with the lattice calculation results integrally. Then, the electromagnetic properties of the systems including electromagnetic radii, magnetic moments, and electric-quadrupole moments are calculated. The obtained results are in agreement with experimental measurements and the results of other models. Finally, the gravitational form factors and the mechanical properties of the decuplet baryons, such as mass radii, energy densities, and spin distributions, are also calculated and discussed.

© The Author(s) 2024

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