The FOCUS experiment(FNAL-E831) has used two channels, Ω−π+ and Ξ−K−π+π+,to measure the lifetime of the Ωc0 charmed baryon. From a sample of 64±14 signal events at a mass of 2.698 GeV/c2, we measure an Ωc0 lifetime of 72±11 (stat.) ±11 (sys.) fs, substantially improving upon the current world average.
@article{arxiv.hep-ex/0302033,
title = {Measurement of the $\Omega_c^0$ Lifetime},
author = {FOCUS collaboration and J. M. Link},
journal= {arXiv preprint arXiv:hep-ex/0302033},
year = {2008}
}