Neutron spectroscopic factors of 34Ar and 46Ar from ( p,d) transfer reactions

Abstract

Single-neutron-transfer measurements using (p,d) reactions have been performed at 33 MeV per nucleon with proton-rich 34Ar and neutron-rich 46Ar beams in inverse kinematics. The extracted spectroscopic factors are compared to the large-basis shell-model calculations. Relatively weak quenching of the spectroscopic factors is observed between 34Ar and 46Ar. The experimental results suggest that neutron correlations have a weak dependence on the asymmetry of the nucleus over this isotopic region. The present results are consistent with the systematics established from extensive studies of spectroscopic factors and dispersive optical-model analyses of 40−49Ca isotopes. They are, however, inconsistent with the trends obtained in knockout-reaction measurements.