English

Quantum Numbers of Recently Discovered $\Omega^{0}_{c}$ Baryons from Lattice QCD

High Energy Physics - Phenomenology 2017-08-02 v2 High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Theory

Abstract

We present the ground and excited state spectra of Ωc0\Omega^{0}_{c} baryons with spin up to 7/2 from lattice quantum chromodynamics with dynamical quark fields. Based on our lattice results, we predict the quantum numbers of five Ωc0\Omega^{0}_{c} baryons, which have recently been observed by the LHCb Collaboration. Our results strongly indicate that the observed states Ωc(3000)0\Omega_c(3000)^0 and Ωc(3050)0\Omega_c(3050)^0 have spin-parity JP=1/2J^P = 1/2^{-}, the states Ωc(3066)0\Omega_c(3066)^0 and Ωc(3090)0\Omega_c(3090)^0 have JP=3/2J^P = 3/2^{-}, whereas Ωc(3119)0\Omega_c(3119)^0 is possibly a 5/25/2^{-} state.

Keywords

Cite

@article{arxiv.1704.00259,
  title  = {Quantum Numbers of Recently Discovered $\Omega^{0}_{c}$ Baryons from Lattice QCD},
  author = {M. Padmanath and Nilmani Mathur},
  journal= {arXiv preprint arXiv:1704.00259},
  year   = {2017}
}

Comments

Version accepted for publication in Physical Review Letters