Measurement of the Ωc0\Omega_c^0 lifetime at Belle II

Abstract

We report on a measurement of the Ωc0\Omega_c^0 lifetime using Ωc0→Ω−π+\Omega_c^0 \to \Omega^-\pi^+ decays reconstructed in e+e−→ccˉe^+e^-\to c\bar{c} data collected by the Belle II experiment and corresponding to 207 fb−1207~{\rm fb^{-1}} of integrated luminosity. The result, τ(Ωc0)=243±48(stat)±11(syst) fs\rm\tau(\Omega_c^0)=243\pm48( stat)\pm11(syst)~fs, agrees with recent measurements indicating that the Ωc0\Omega_c^0 is not the shortest-lived weakly decaying charmed baryon

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    Last time updated on 15/01/2023