Newly observed $\Omega (2012)$ state and strong decays of the low-lying $\Omega$ excitations

Abstract

Stimulated by the newly discovered $\Omega (2012)$ resonance at Belle II, in this work we have studied the OZI allowed strong decays of the low-lying $1P$- and $1D$-wave $\Omega$ baryons within the ${}^3{P}_0$ model. It is found that $\Omega (2012)$ is most likely to be a $1P$-wave $\Omega$ state with $J^P=3/2^{-}$. We also find that the $\Omega (2250)$ state could be assigned as a $1D$-wave state with $J^P=5/2^{+}$. The other missing $1P$- and $1D$-wave $\Omega$ baryons may have large potentials to be observed in their main decay channels.

References in corpus (26)

• The light baryon spectrum in a relativistic quark model with instanton-induced quark forces I. The non-strange baryon spectrum and ground-states
• Properties of Excited Charm and Charm-Strange Mesons
• Charmed baryon strong decays in a chiral quark model
• Global Analysis of Nucleon Strange Form Factors at Low $Q^2$
• Strong and radiative decays of the doubly charmed baryons
• Xi and Omega baryons in the Skyrme model
• Vector Meson Photoproduction with an Effective Lagrangian in the Quark Model
• Strangeness -2 and -3 Baryons in a Constituent Quark Model
• Strange baryon spectroscopy in the relativistic quark model
• Observation of an excited ${\Omega }^{-}$ baryon
• The Threshold Pion-Photoproduction of Nucleons In The Chiral Quark Model
• Strong decays of higher excited heavy-light mesons in a chiral quark model
• Strong decays of higher charmonium states into open-charm meson pairs
• The $\Omega (2012)$ as a hadronic molecule
• Coupled channels dynamics in the generation of the $\Omega (2012)$ resonance
• A possible interpretation of the newly observed $\Omega (2012)$ state
• Hadronic molecular assignment for the newly observed ${\Omega }^{\ast }$ state
• Study of π^{-}p \to ηn at low energies in a chiral constituent quark model
• Interpretation of the newly discovered $\Omega$(2012)
• Strong decay modes $\bar{K}\Xi$ and $\bar{K}\Xi \pi$ of the $\Omega (2012)$ in the $\bar{K}\Xi (1530)$ and $\eta \Omega$ molecular scenario
• Mixing of the low-lying three- and five-quark $\Omega$ states with negative parity
• Strong decays of the 1P and 2D doubly charmed states
• Nature of the $\Omega$(2012) through its strong decays
• Low-lying $\Omega$ states with negative parity in an extended quark model with Nambu-Jona-Lasinio interaction
• Light flavor baryon spectrum with higher order hyperfine interactions
• Spectrum and Bethe-Salpeter amplitudes of $\Omega$ baryons from lattice QCD

Cited by in corpus (15)

• $\Omega$ baryon spectrum and their decays in a constituent quark model
• Search for $\Omega (2012)\to K\Xi (1530)\to K\pi \Xi$ at Belle
• Revisiting the $\Omega (2012)$ as a hadronic molecule and its strong decays
• Theoretical study of the $\Omega (2012)$ state in the ${\Omega }_c^0\to {\pi }^{+}\Omega (2012{)}^{-}\to {\pi }^{+}(\bar{K}\Xi {)}^{-}$ and ${\pi }^{+}(\bar{K}\Xi \pi {)}^{-}$ decays
• Toward discovering the excited $\Omega$ baryons through nonleptonic weak decays of ${\Omega }_c$
• Spectroscopic Study of Strangeness=-3 ${\Omega }^{-}$ Baryon
• Strong decays of the hadronic molecule ${\Omega }^{\ast }(2012)$
• Analysis of $\Omega (2012)$ as a molecule in the chiral quark model
• Further understanding the nature of $\Omega (2012)$ within a chiral quark model
• Reanalysis of the newly observed ${\Omega }^{\ast }$ state in hadronic molecule model
• Understanding the nature of $\Omega (2012)$ in a coupled-channel approach
• Identifying triple-strangeness $\Omega$ hyperons in light of recent experimental results
• Structure of the ${\Omega }^{-}(2012)$ with Hamiltonian Effective Field Theory
• Observation of the $\Omega$(2012) baryon at the LHC
• Investigation on the $\Omega (2012)$ from QCD sum rules