Study of Ωc0 and Ωc∗0 baryons at Belle

E. Solovieva,R. Chistov,I. Adachi,H. Aihara,K. Arinstein,T. Aushev, A.M. Bakich,V. Balagura,U. Bitenc, A. Bondar, M. Bračko,J. Brodzicka,T.E. Browder,P. Chang,A. Chen, B.G. Cheon,I.-S. Cho,S.-K. Choi, Y. Choi,J. Dalseno

Physics Letters B（2009）

Cited 73|Views48

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Abstract

We report results from a study of the charmed double strange baryons Ωc0 and Ωc∗0 at Belle. The Ωc0 is reconstructed using the Ωc0→Ω−π+ decay mode, and its mass is measured to be (2693.6±0.3−1.5+1.8)MeV/c2. The Ωc∗0 baryon is reconstructed in the Ωc0γ mode. The mass difference MΩc∗0−MΩc0 is measured to be (70.7±0.9−0.9+0.1)MeV/c2. The analysis is performed using 673 fb−1 of data on and near the ϒ(4S) collected with the Belle detector at the KEKB asymmetric-energy e+e− collider.

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