Singly heavy omega baryon spectroscopy in the relativistic framework of an independent quark model

초록

The independent quark model, formulated for a three-body system within a relativistic framework, is applied to singly heavy baryons S20 c and S2-b to investigate their spectroscopic properties. A Martin-like potential with an equal mixture of scalar and vector components is employed, with potential parameters fitted using ground-state experimental data. The resulting mass spectra include both radial and orbital excitations. The spin-parity for the recently observed states S20c(3000), S20c(3050), S20c(3067), S20c(3120), and S20c(3185), as well as possible spin assignments for the four newly observed excited states of S2-b (S2-b (6316), S2-b (6330), S2-b (6340), and S2-b (6350), are proposed. The magnetic moments of the ground and first excited states are also calculated, along with radiative decay widths and transition magnetic moments. The nonleptonic weak decays of S20 c are analyzed, with decay widths and branching ratios computed and compared with experimental data to validate the predictive power of the model. The branching ratios for the nonleptonic decays of S2-b are also predicted for future observations.

키워드