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Observation of two structures in the processes $e^+e^-\rightarrow\omega\chi_{c1}$ and $\omega\chi_{c2}$
We present measurements of the Born cross sections for the processes $e^+e^-\rightarrow\omega\chi_{c1}$ and $\omega\chi_{c2}$ at center-of-mass energies $\sqrt{s}$ from 4.308 to 4.951 GeV. The measurements are performed with data samples corresponding to an integrated luminosity of 11.0 $\rm{fb}^{-1}$ collected with the BESIII detector operating at the BEPCII storage ring. Assuming …