  The chi_c0(3915) was observed firstly by the Belle experiment in the omega
J/psi invariant mass spectrum in the process B -> K omegaJ/psi, and then
confirmed by the Babar experiment. The two experiments reported the resonant
parameters of this particle in the both processes gammagamma -> omegaJ/psi and
B -> K omega J/psi by assuming chi_c0(3915) as a S-wave Breit-Wigner resonance.
We perform a global fit to the distributions of invariant mass of omega J/psi
measured by the Belle and Babar experiments, and incorporate the measurement by
the LHCb experiment additionally to extract the mass and width of chi_c0(3915).
We obtain M = 3921.0 +/- 0.9 MeV/c2 and Gamma = 17.9 +/- 2.4 MeV which are
consistent with the values on PDG within one standard deviation but with
improved precision.
