Abstract
We construct an effective hadronic model including , , , and , regarding them as chiral partners to , , , and , respectively, with respecting the chiral symmetry and heavy-quark spin-flavor symmetry. We determine the model parameters from the experimental data for relevant masses and decay widths of and . Then, we study the decay widths of , , and . We find that, although the decay of is dominated by the resonant contribution through , nonresonant contributions are important for , , and , which reflects the chiral partner structure. We also study the radiative decays of the baryons, and show that each of their widths is determined from the radiative decay width of their chiral partners.
- Received 25 April 2018
DOI:https://doi.org/10.1103/PhysRevD.97.114024
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society