A possible resolution of the CDF Ψ′ anomaly

We consider the contribution of radially excited 23P1,2 states to Ψ′ production at the Tevatron energy. Production of these states via the conventional gluon fusion mechanism and via gluon and charm quark fragmentation processes is considered. With optimistic estimates of the decay branching fractions of these 23P1,2 states into Ψ′, it is possible to account for the large Ψ′ production cross-section observed by the CDF experiment.