Study of excitedΞcstates decaying intoΞc0andΞc+baryons
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Abstract
Using a data sample of $980\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ annihilation data taken with the Belle detector operating at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider, we report the results of a study of excited ${\mathrm{\ensuremath{\Xi}}}_{c}$ states that decay, via the emission of photons and/or charged pions, into ${\mathrm{\ensuremath{\Xi}}}_{c}^{0}$ or ${\mathrm{\ensuremath{\Xi}}}_{c}^{+}$ ground state charmed-strange baryons. We present new measurements of the masses of all members of the ${\mathrm{\ensuremath{\Xi}}}_{c}^{\ensuremath{'}}$, ${\mathrm{\ensuremath{\Xi}}}_{c}(2645)$, ${\mathrm{\ensuremath{\Xi}}}_{c}(2790)$, ${\mathrm{\ensuremath{\Xi}}}_{c}(2815)$, and ${\mathrm{\ensuremath{\Xi}}}_{c}(2980)$ isodoublets, measurements of the intrinsic widths of those that decay strongly, and evidence of previously unknown transitions.
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