Observation of ψ(3686) → Ω^- K⁺ Ξ⁰ +c.c

2024/01/16 by BESIII Collaboration, Ablikim, M., М. Н. Ачасов +735
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #High-Energy Particle Collisions Research

paper · pdf · doi:10.48550/arxiv.2401.08252

Abstract

Using (27.12 ± 0.14) × 10⁸ ψ(3686) events collected with the BESIII detector at BEPCII, the decay of ψ(3686) → Ω^- K⁺ Ξ⁰ +c.c. is observed for the first time. The branching fraction of this decay is measured to be B_{ψ(3686) → Ω^- K⁺ Ξ⁰ +c.c.}=(2.78 ± 0.40 ± 0.18 ) × 10^-6, where the first uncertainty is statistical and the second is systematic. Possible baryon excited states are searched for in this decay, but no evident intermediate state is observed with the current sample size.

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