Abstract
Experimental evidence is presented that the144Nd(p, α)141Pr reaction excites residual nucleus levels with a dominant single proton configuration, suggesting a contribution from knock-on mechanism.
The angular distributions of theα-particles populating these levels have been analysed by means of one step pick-up (both in finite and zero range approximation) and knock-on theories, assuming that the spectroscopic amplitudes for the two processes are proportional to the spectroscopic amplitudes for proton transfer in pick-up and stripping reactions, respectively. The results obtained suggest the importance of knock-on contributions to some of the transitions.
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We gratefully acknowledge the continuous support and advice of Prof. O. Schult and wish to thank Dr. P.E. Hodgson for illuminating suggestions and the careful reading of the manuscript and Prof. R.H. Siemssen for constructive criticism.