Newly discovered $\Xi_c^{0}$ resonances and their parameters
Abstract
The aim of the present article is investigation of the newly observed resonances , , and which are real candidates to charm-strange baryons. To this end, we calculate the mass and pole residue of the ground-state and excited and spin- flavor-sextet baryons , and with quark content , respectively. The masses and pole residues of the ground-state and excited spin- baryons are found as well. Spectroscopic parameters of these particles are computed in the context of the QCD two-point sum rule method. Widths of the excited baryons are evaluated through their decays to final states and . These processes are explored by means of the full QCD light-cone sum rule method necessary to determine strong couplings at relevant vertices. Obtained predictions for the masses and widths of the four excited baryons, as well as previous results for and flavor-antitriplet spin-1/2 particles are confronted with available experimental data on resonances to fix their quantum numbers. Our comparison demonstrates that the resonances and can be considered as excitations of the spin- flavor-sextet and spin- baryons, respectively. The resonance may be interpreted as the excited state of either spin- flavor-sextet or antitriplet baryon.
Cite
@article{arxiv.2007.00583,
title = {Newly discovered $\Xi_c^{0}$ resonances and their parameters},
author = {S. S. Agaev and K. Azizi and H. Sundu},
journal= {arXiv preprint arXiv:2007.00583},
year = {2021}
}
Comments
15 Pages, 4 Figures and 2 Tables