Work

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

Year: 2025

Type: article

Abstract: The independent quark model, formulated for a three-body system within a relativistic framework, is applied to singly heavy baryons Ω c 0 and Ω 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 Ω c 0 ( 3000 ) , Ω c 0 ( 3050 ) , Ω c 0 ( 3067 ) , Ω c 0 ( 3120 ) , and Ω c 0 ( 3185 ) , as well as possible spin assignments for the four newly observed excited states of Ω b − ( Ω b − ( 6316 ) , Ω b − ( 6330 ) , Ω b − ( 6340 ) , and Ω 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 Ω c 0 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 Ω b − are also predicted for future observations.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/x8lw-8vfs

Authors: Rameshri V. Patel, Manan Shah, Smruti Patel, Bhoomika Pandya

Institutions: Charotar University of Science and Technology, Kyungpook National 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: hybrid

Funder: University Grants Commission

Award: G239350958