Observation of the ${\Omega }_c^0$ Charmed Baryon at CLEO

Abstract

The CLEO experiment at the CESR collider has used 13.7 fb${}^{-1}$ of data to search for the production of the ${\Omega }_c^0$ (css-ground state) in $e^{+}{e}^{-}$ collisions at $\sqrt{s}\simeq 10.6$ {\rm GeV}. The modes used to study the ${\Omega }_c^0$ are ${\Omega }^{-}{\pi }^{+}$, ${\Omega }^{-}{\pi }^{+}{\pi }^0$, ${\Xi }^{-}{K}^{-}p{i}^{+}{\pi }^{+}$, ${\Xi }^0{K}^{-}p{i}^{+}$, and ${\Omega }^{-}{\pi }^{+}{\pi }^{-}{\pi }^{+}$. We observe a signal of 40.4$\pm$9.0(stat) events at a mass of 2694.6$\pm$2.6(stat)$\pm$1.9(syst) {\rm MeV/$c^2$}, for all modes combined.

arXiv comment10 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS

References in corpus (6)

• PREDICTING THE MASSES OF BARYONS CONTAINING ONE OR TWO HEAVY QUARKS
• Heavy Baryon Masses in the $1/m_Q$ and $1/N_c$ Expansions
• Observation of a Narrow State Decaying into ${\Xi }_c^{+}{\pi }^{-}$
• Evidence of New States Decaying into ${\Xi }_c^{\ast }\pi$
• Observation of Two Narrow States Decaying into ${\Xi }_c^{+}\gamma$ and ${\Xi }_c^0\gamma$
• ${\Omega }_c$ and other charmed baryons revisited

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