Measurement of masses of the Ξ c ( 2645 ) and Ξ c ( 2815 ) baryons and observation of Ξ c ( 2980 ) → Ξ c ( 2645 ) π

Measurement of masses of the Ξ c ( 2645 ) and Ξ c ( 2815 ) baryons and observation of Ξ c ( 2980 ) → Ξ c ( 2645 ) π