The cross section of the process $e^+e^-
ightarrow omega chi_{c0}$ is
measured at center-of-mass energies from $sqrt{s} =$ 4.178 to 4.278 GeV using
a data sample of 7 fb$^{-1}$ collected with the BESIII detector operating at
the BEPCII storage ring. The dependence of the cross section on $sqrt{s}$
shows a resonant structure with mass of
$(4218.5pm1.6( ext{stat.})pm4.0( ext{syst.}))$ MeV/$c^2$ and width of
$(28.2pm3.9( ext{stat.})pm1.6( ext{syst.}))$ MeV, respectively. This
observation confirms and improves upon the result of a previous study. The
angular distribution of the $e^+e^-
ightarrow omega chi_{c0}$ process is
extracted for the first time.
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