Investigation of the 60Co AND 62Co nuclei by two-particle transfer reactions (I). 60Co

doi:10.1016/0375-9474(72)90432-0

Nuclear Physics A

Volume 184, Issue 2, 17 April 1972, Pages 599-608

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Abstract

In order to obtain additional information about the ⁶⁰Co nucleus we studied the reactions ⁶²Ni(d,α) and ⁵⁸Fe(³He,p) both leading to the same finalnucleus ⁶⁰Co. The bombardingenergies were 15 MeV and 12 MeV respectively. We measured excitation energies up to about 4 MeV, and we analyzed angular distributions for both reactions by means of DWBA calculations. A large number of angular momenta could be extracted. In some cases we could obtain information concerning the configurations.

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Investigation of the 59Co(n, γ)60Co reaction with unpolarized and polarized neutrons
1984, Nuclear Physics, Section A
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.
(f<inf> 7 2</inf>)<inf>7,0</inf>-2 configuration high-spin states in 60Co strongly excited in the 62Ni(d, α) reaction
1983, Nuclear Physics, Section A
The $^{62} Ni (d, α)^{60} Co$ reaction has been studied with 78 MeV vector polarized deuterons. Angular distributions of the differential cross section and vector analyzing power have been measured for strongly populated states in ⁶⁰Co up to an excitation energy of 5 MeV. The transferred orbital and total angular momenta L and J were determined from the characteristic shapes of the differential cross sections and vector analyzing powers yielding a number of new spin assignments. The J^π = 7⁺ stretched $[(^{62} Ni_{g.s.})_{0^{+}} ⊗(1 f_{72})_{7,0}^{−2}]$ configuration was found to be distr least over nine states located at 1.51, 3.09, 3.46, 3.67, 3.78, 4.04, 4.55, 4.70 and 4.80 MeV.

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^†: Now at the Institut für Kernphysik der Kernforschungsanlage Jülich, Germany.

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Nuclear Physics A

Abstract

References (16)

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Nucl. Phys.

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Phys. Lett.

Phys. Rev.

Nucl. Phys.

Cited by (19)

Nuclear data sheets for A = 60

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Nuclear data sheets update for A = 60

Nuclear Data Sheets for A=60

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

(f<inf> 7 2</inf>)<inf>7,0</inf><sup>-2</sup> configuration high-spin states in <sup>60</sup>Co strongly excited in the <sup>62</sup>Ni(d, α) reaction