We report the first observation of an excited singly charmed baryon Omega_{c};{*} (css) in the radiative decay Omega_{c};{0}gamma, where the Omega_{c};{0} baryon is reconstructed in the decays to the final states Omega;{-}pi;{+}, Omega;{-}pi;{+}pi;{0}, Omega;{-}pi;{+}pi;{-}pi;{+}, and Xi;{-}K;{-}pi;{+}pi;{+}. This analysis is performed using a data set of 230.7 fb;{-1} collected by the BABAR detector at the PEP-II asymmetric-energy B factory at the Stanford Linear Accelerator Center. The mass difference between the Omega_{c};{*} and the Omega_{c};{0} baryons is measured to be 70.8+/-1.0(stat)+/-1.1(syst) MeV/c;{2}. We also measure the ratio of inclusive production cross sections of Omega_{c};{*} and Omega_{c};{0} in e;{+}e;{-} annihilation.
Observation of an Excited Charm Baryon Omega_{c};{*} Decaying to Omega_{c};{0}gamma. Publishing Authors By Initials