Measurement of the ${\Omega }_c^0$ Lifetime

Abstract

The FOCUS experiment(FNAL-E831) has used two channels, ${\Omega }^{-}{\pi }^{+}$ and ${\Xi }^{-}{K}^{-}{\pi }^{+}{\pi }^{+}$,to measure the lifetime of the ${\Omega }_c^0$ charmed baryon. From a sample of $64\pm 14$ signal events at a mass of 2.698 GeV/$c^2$, we measure an ${\Omega }_c^0$ lifetime of $72\pm 11$ (stat.) $\pm 11$ (sys.) fs, substantially improving upon the current world average.

12 pages and 5 figures

References in corpus (2)

• Cerenkov Particle Identification in FOCUS
• Reconstruction of Vees, Kinks, ${\Xi }^{-}$'s, and ${\Omega }^{-}$'s in the Focus Spectrometer

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• Charmed Baryon Physics Circa 2021
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• Toward discovering the excited $\Omega$ baryons through nonleptonic weak decays of ${\Omega }_c$
• Hadronic weak decays of the charmed baryon ${\Omega }_c$
• Semileptonic Decay of ${\Omega }_c^0\to {\Xi }^{-}{l}^{+}{\nu }_l$ From Light-Cone Sum Rules
• Resolving the SELEX-LHCb double-charm baryon conflict: the impact of intrinsic heavy-quark hadroproduction and supersymmetric light-front holographic QCD