Regular Article –Theoretical Physics
Systematic analysis of doubly charmed baryons and
Department of Mathematics and Physics, North China Electric Power University, 071003, Baoding, People’s Republic of China
2 School of Physics and Electronic Science, Guizhou Education University, 550018, Guiyang, People’s Republic of China
Accepted: 29 May 2023
Published online: 10 June 2023
In this work, we perform a systematic study of the mass spectra, the root mean square (r.m.s.) radii and the radial density distributions of the doubly charmed baryons and . The calculations are carried out in the frame work of relativized quark model, where the baryon is regarded as a three-body system of quarks. Our results show that the excited energy of doubly charmed baryon with -mode is lower than those of the -mode and - mixing mode, which indicates that the lowest state is dominated by the -mode. According to this conclusion, we systematically investigate the mass spectra, the r.m.s. radii of the ground and excited states (, , , and ) with -mode. Using the wave functions obtained from quark model, we also study the radial density distributions. Finally, with the predicated mass spectra, the Regge trajectories of and in the (J,) plane are constructed, and the slopes, intercepts are determined by linear fitting. It is found that model predicted masses fit nicely to the constructed Regge trajectories.
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