Measurement of the decays ?c ? ??? at Belle

Abstract

We report measurements of the branching fractions of the decays ?c+??+?-?+, ?c+??0?+?0 and ?c+??+?0?0 relative to the reference channel ?c+?pK-?+. The analysis is based on the full data sample collected at and near the (4S) resonance by the Belle detector at the KEKB asymmetric-energy e+e- collider, corresponding to an integrated luminosity of 711 fb-1. We measure B(?c+??+?-?+)/B(?c+?pK-?+)=0.719�0.003�0.024, B(?c+??0?+?0)/B(?c+?pK-?+)=0.575�0.005�0.036 and B(?c+??+?0?0)/B(?c+?pK-?+)=0.247�0.006�0.019. The listed uncertainties are statistical and systematic, respectively. � 2018 authors. Published by the American Physical Society.