Determination of the resonant parameters of with global fit*

Abstract

Abstract Particle was first observed by the Belle experiment in the invariant mass spectrum in the process and subsequently confirmed by the BaBar experiment. Both experiments reported the resonant parameters of this particle in the processes and assuming as an S-wave Breit-Wigner resonance. We performed a global fit to the distributions of invariant mass of measured by the Belle and BaBar experiments and additionally incorporated the measurements reported by the LHCb experiment to extract the mass and width of . We obtained MeV/ and MeV, which are consistent with the values from PDG within one standard deviation but with higher precision.