A STUDY OF COUPLED-REACTION CHANNEL EFFECTS IN THE S-36-37 SYSTEM, HYBRIDIZATION BETWEEN SINGLE-PARTICLE ORBITS(CL)

Elastic and inelastic scattering as well as transfer transitions invol ving a valence proton in the sd- and fp-shell orbits are studied in th e interaction of Cl-37 + S-36 at E(CM) = 50 MeV. Experimental angular distributions of single particle states of Cl-37 (elastic and inelasti c transfer) are presented with a CRC analysis. In the CRC calculations the effects of inelastic and transfer couplings are studied using kno wn spectroscopic information, In the CRC analysis six single particle bound states and the collective 2(+) excitation of S-36 are included i n the coupling scheme. Higher order coupling effects are found to be i mportant. A distinct effect, the mixing of single particle states (of different parity) due to direct and transfer interactions is observed to produce an enhancement of the transfer cross section to the low lyi ng states. This feature is due to a change of the asymptotically defin ed single nucleon orbits via polarization in the field of the other nu cleus, an effect which is analogous to hybridization, known from atomi c physics.