| Autor: |
Maxim V. Polyakov, Hyeon-Dong Son, Bao-Dong Sun, Asli Tandogan |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Physics Letters B, Vol 792, Iss , Pp 315-319 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/j.physletb.2019.03.054 |
| Popis: |
We perform the flavour SU(3) analysis of the recently discovered Ω(2012) hyperon. We find that well known (four star) Δ(1700) resonance with quantum numbers of JP=3/2− is a good candidate for the decuplet partner of Ω(2012) if the branching for the three-body decays of the latter is not too large ≤70%. That implies that the quantum numbers of Ω(2012) are I(JP)=0(3/2−). The predictions for the properties of still missing Σ and Ξ decuplet members are made. We also discuss the implications of the K‾Ξ(1530) molecular picture of Ω(2012). In the molecular picture, Ω(2012) state can have quantum numbers of either I(JP)=0(3/2−) or I(JP)=1(3/2−). Crucial experimental tests to distinguish various pictures of Ω(2012) are suggested. Keywords: Omega baryon, SU(3) flavour symmetry, Excited decuplet, Hadronic molecule, Decay width |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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Full Text from ScienceDirect