Enhancement of the near-side component in quasiadiabatic calculations of the sup 66 Zn( d , p ) sup 67 Zn reaction

Measurements of the spin dependence of large {ital l}, {ital j}={ital l}{minus}1/2, transfer reactions at medium energies provide a stringent test of three-body reaction models. We report measurements of the cross section ({ital d}{sigma}/{ital d}{Omega}), vector ({ital A}{sub {ital y}}) and tensor ({ital A}{sub {ital y}{ital y}}) analyzing powers, and outgoing proton polarization ({ital p}) angular distributions ({theta}{sub c.m.}=6.9{degree}--82.3{degree}) for the {ital l}=3, {ital j}{sup {pi}}=5/2{sup {minus}} ground-state transition in {sup 66}Zn({ital d},{ital p}){sup 67}Zn measured with 88.2-MeV deuterons. Adiabatic model calculations fail to describe either interference oscillations in the data or departures from the simple theoretical relationships, 1+3{ital p}+2{ital A}{sub {ital y}{ital y}}=0 and 2+{ital A}{sub {ital y}{ital y}}+3{ital A}{sub {ital y}}=0, that are expected to hold for a far-side--dominated reaction. The quasiadiabatic model, in which the center-of-mass energy in breakup configurations is not constrained to be degenerate with the elastic channel, is able to reproduce qualitatively these features of the data.