Elsevier

Nuclear Physics A

Volume 427, Issue 3, 15 October 1984, Pages 413-450
Nuclear Physics A

Investigation of the 59Co(n, γ)60Co reaction with unpolarized and polarized neutrons

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Abstract

Capture of 24 keV neutrons and polarized as well as unpolarized thermal neutrons in 59Co has been investigated. Of the 350 γ-rays observed 335 could be placed in a 60Co level scheme containing 144 levels. The reaction Q-value amounts to 7491.92(8) keV. The χ2 analysis of the circularly polarized γ-rays results in 31 unambiguous spin assignments for 60Co levels. The fraction of the J = 4 channel in the thermal capture was determined to be (80 ± 1)%. An average γ-ray multiplicity of 2.3 gammas per neutron capture was observed. The resulting level scheme is compared to shell-model predictions. Possible reaction mechanisms are discussed.

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    Fysisch Laboratorium, Rijksuniversiteit Utrecht, Princetonplein 5,3508 TA Utrecht, The Netherlands.

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