Author:
Wang JiaQi,Fu Dongyan,Dong Yubing
Abstract
AbstractThe 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.
Publisher
Springer Science and Business Media LLC
Reference80 articles.
1. M.V. Polyakov, P. Schweitzer, Forces inside hadrons: pressure, surface tension, mechanical radius, and all that. Int. J. Mod. Phys. A 33(26), 1830025 (2018)
2. R.L. Workman et al., Review of particle physics. PTEP 2022, 083C01 (2022)
3. G. Blanpied et al., N $$\rightarrow $$ Delta transition from simultaneous measurements of p (gamma $$\rightarrow $$, pi) and p (gamma $$\rightarrow $$, gamma). Phys. Rev. Lett. 79, 4337–4340 (1997)
4. K. Joo et al., Q**2 dependence of quadrupole strength in the gamma* p $$\rightarrow $$ Delta+(1232) $$\rightarrow $$ p pi0 transition. Phys. Rev. Lett. 88, 122001 (2002)
5. N. Sparveris et al., Measurements of the $$\gamma $$*p $$\rightarrow $$$$\Delta $$ reaction at low Q$$^{2}$$. Eur. Phys. J. A 49, 136 (2013)