PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Poster Session
Strong decay widths and mass spectra of charmed baryons
A. Ramirez Morales
Full text: pdf
Pre-published on: December 15, 2022
Published on: June 15, 2023
The total decay widths of charmed baryons, including all the possible open-flavor decay channels, are calculated by means of the 3P0 model. Our calculations consider the final states: the charmed baryon-(vector/pseudoscalar) meson pairs and the (octet/decuplet) baryon-(pseudoscalar/vector) charmed meson pairs, within a constituent quark model. Furthermore, we calculate the masses of the charmed baryon ground states and their excitations up to the D-wave in a constituent quark model both in the three-quark and in quark-diquark schemes. To do so, we utilize a Hamiltonian model based on a harmonic oscillator potential plus a mass splitting term that encodes the spin, spin-orbit, isospin, and flavor interactions. The parameters of the Hamiltonian model are fitted to experimental data of charmed baryon masses and decay widths. As the experimental uncertainties of the data affect the fitted model parameters, we have thoroughly propagated these uncertainties into our predicted charmed baryon masses and decay widths via a Monte Carlo bootstrap approach. Our quantum number assignments and predictions of mass and strong partial decay widths are in reasonable agreement with the available data. Thus, our results show the ability to guide future measurements in LHCb, Belle, and Belle II experiments.
DOI: https://doi.org/10.22323/1.414.0913
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