Molecular picture for the Ω(2012) revisited

Theoretical study of the Ω(2012) state in the Ωc0Zeng1, Lu2, Wang3 et al. 2020Phys. Rev. D18120View full textAdd to dashboardCite

“…Based on this recent measurement, Refs. [30,31] claimed a reasonable reproduction of the experimental data of the Belle collaboration [2,29], and concluded that the experimental data on the Ωð2012Þ are compatible with the molecular picture and the theoretical results are rather stable with different sets of model parameters of natural size.…”

“…On the other hand, the Ωð2012Þ is naturally accommodated as a dynamically generated state from the coupled channels interactions of theKΞ Ã ð1530Þ and ηΩ in s-wave. In this picture, its sin-parity are 3=2 − , and the ratio RK πΞ KΞ could be well reproduced with different sets of model parameters [30,31]. Further work and more precise experimental data may be used to pin down those model parameters and then the decay properties of Ωð2012Þ resonance could be determined in the future.…”

“…Taking the advantage of these ideas and the previous works of Refs. [30,31], we study the Ωð2012Þ resonance in the Ω 0 c → π þK Ξ Ã ð1530ÞðηΩÞ → π þ ðKΞÞ − and π þ ðKΞπÞ − decays, showing that they provide a good filter for I ¼ 0 and strangeness S ¼ −3 resonances, which can be used to probe the nature of the Ω excited states.…”

“…Before ending the Introduction, we want to mention that, in this work, the Ωð2012Þ is a dynamically generated state with J P ¼ 3=2 − from the coupled channels interactions of theKΞ Ã ð1530Þ and ηΩ in s-wave andKΞ in d-wave [30,31].…”

Theoretical study of the $Ω(2012)$ state in the $Ω_c^0 \to π^+ Ω(2012)^- \to π^+ (\bar{K}Ξ)^-$ and $π^+ (\bar{K}Ξπ)^-$ decays

“…Based on this recent measurement, Refs. [30,31] claimed a reasonable reproduction of the experimental data of the Belle collaboration [2,29], and concluded that the experimental data on the Ω(2012) are compatible with the molecular picture and the theoretical results are rather stable with different sets of model parameters of natural size.…”