Elsevier

Nuclear Physics A

Volume 321, Issue 1, 28 May 1979, Pages 109-136
Nuclear Physics A

A study of the two-particle states in 42Sc from the 41Ca(3He, d) reaction

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Abstract

Energy levels in 42Sc have been studied in the proton stripping reaction 41Ca(3He, d)42Sc at a bombarding energy of 20 MeV with an energy resolution of about 10 keV. A total of 90 levels were identified below 6 MeV excitation energy. Differential cross sections were measured as a function of reaction anngle, and l-values and spectroscopic strengths were deduced from a DWBA analysis. T = 1 states with f722 and f72p32 configurations were identified from a comparison of the spectroscopic results from the present 41Ca(3He, d) experiment and previous 41Ca(d, p) studies. The individual spectroscopic strengths for the two members of the 0.62 MeV 1+ + 7+ unresolved doublet were determined by a measurement of the deexcitation γ-rays in prompt coincidence with the relevant reaction deuteron group. he results are discussed in terms of sum rules, and effective two-body interaction matrix elements are derived. The spectroscopic strengths for the low-lying transitions agree with the predictions from the coexistence model.

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    Supported in part by Norges Almenvitenskapelige Forskningsråd.

    ††

    Supported by a grant from the US National Science Foundation.

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