ON THE ABSENCE OF MILDLY RECYCLED RADIO PULSARS AMONGST THE POPULATION OF ORDINARY SINGLE RADIO PULSARS

Current scenarios for the evolution of binaries predict that only 1% o r less of the single radio pulsars in the galactic disk have been recy cled in a binary. The fraction of such pulsars amongst the detected si ngle radio pulsars is smaller than this. For magnetic field strengths B > 10(12) G the period vs. magnetic field diagram shows no evidence f or injection of pulsars at P similar to 0.5 s. For magnetic field stre ngths 10(10.5) < B < 10(11.5) G recycled single pulsars cannot be disc riminated from ordinary pulsars, i.e. there is no reason to assume tha t they are recycled.