Study of Ω_c^0 and Ω_c^{*0} Baryons at Belle

Details Study of Ω_c^0 and Ω_c^{*0} Baryons at Belle Study of Ω_c^0 and Ω_c^{*0} Baryons at Belle

2008-08-27

arxiv.org/abs/0808.3677v2

Phys.Lett.B672:1-5,2009

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages, 5 figures, prepared for 34th International Conference on High Energy Physics (ICHEP 08), Philadelphia, PA, 29 Jul -

Scientific paper

10.1016/j.physletb.2008.12.062

We report results from a study of the charmed double strange baryons \Omega_c^0 and \Omega_c^{*0} at Belle. The \Omega_c^0 is reconstructed using the \Omega_c^0 --> \Omega^- \pi^+ decay mode, and its mass is measured to be (2693.6 \pm 0.3 {+1.8 \atop -1.5}) MeV/c^2. The \Omega_c^{*0} baryon is reconstructed in the \Omega_c^0 \gamma mode. The mass difference M_{\Omega_c^{*0}} - M_{\Omega_c^0} is measured to be (70.7 \pm 0.9 {+0.1 \atop -0.9}) MeV/c^2. The analysis is performed using 673 fb^{-1} of data on and near the \Upsilon(4S) collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider.

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