Elsevier

Nuclear Physics A

Volume 253, Issue 2, 24 November 1975, Pages 253-262
Nuclear Physics A

The decrease of ground-state correlations from 12C to 14C

https://doi.org/10.1016/0375-9474(75)90480-7Get rights and content

Abstract

The (d, τ) reactions on 12C, 13C and 14C have been investigated with 52 MeV deuterons. Spectroscopic factors have been extracted from a DWBA analysis of the measured angular distributions. The derived proton occupation numbers show that the addition of 1p12. neutrons leads to a consolidation of the 1p12 proton shell closure: The number of protons in the 1p12. shell of the target wave function decreases from 0.7 in 12C to about 0.4 in 13C and 0.3 in 14C. This decrease is understood as the result of (i) a blocking of proton scattering into the 1p12 shell due to the presence of 1p12 neutrons or (ii) a decreasing deformation with increasing neutron number.

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    Work supported in part by Gesellschaft für Kernforschung mbH, Karlsruhe.

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