Observation of an Excited Ω- Baryon

(Belle Collaboration)

Research output: Contribution to journalArticlepeer-review


Using data recorded with the Belle detector, we observe a new excited hyperon, an Ω∗- candidate decaying into Ξ0K- and Ξ-KS0 with a mass of 2012.4±0.7(stat)±0.6(syst) MeV/c2 and a width of Γ=6.4-2.0+2.5(stat)±1.6(syst) MeV. The Ω∗- is seen primarily in (1S), (2S), and (3S) decays.

Original languageEnglish
Article number052003
JournalPhysical Review Letters
Issue number5
StatePublished - 2 Aug 2018
Externally publishedYes


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