The (18O, 20Ne) reaction on the even Ni isotopes and the mass of 62Fe

doi:10.1016/0375-9474(76)90696-5

Nuclear Physics A

Volume 269, Issue 2, 5 October 1976, Pages 511-519

https://doi.org/10.1016/0375-9474(76)90696-5 Get rights and content

Abstract

The (¹⁸O, ²⁰Ne) reaction on the even Ni isotopes has been studied at 63.0 MeV with ΔE-E time-of-flight telescopes. From the measured ground-state Q-value for the ⁶⁴Ni(¹⁸O, ²⁰Ne)⁶²Fe reaction, −1.97±0.20 MeV, a mass excess −58.87±0.20 MeV is obtained for the ⁶²Fe nucleus. This result is in good agreement with a recent measurement of the β-endpoint energy. Angular distributions for the transitions to the Fe ground states, leaving ²⁰Ne in its ground and 1.63 MeV 2⁺ excited state, yield relative spectroscopic strengths in fair agreement with DWBA calculations based on simple shell-model estimates.

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Nuclear Data Sheets for A = 62
2012, Nuclear Data Sheets
Experimental nuclear spectroscopic data for known nuclides of mass number 62 (Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge) have been evaluated and presented together with adopted properties of levels and γ rays. New high-spin data are available for ⁶²Ga, and ⁶²Zn. Results of in-beam γ-ray studies for ⁶²Cu producing high-spin states are in conflict in terms of gamma-ray placements and branching ratios. In the opinion of the evaluators, a detailed study of high-spin structures in ⁶²Cu is needed to obtain a consistent and confident level scheme. Precise studies of superallowed β decay of ⁶²Ga to ⁶²Zn by several groups have extended the decay scheme. No significant new data, since the 2000 NDS for A = 62 (2000Hu18), have been reported for ⁶²Co, ⁶²Ni and ⁶²Cu. No data are yet available for excited states in ⁶²Ti and ⁶²V, and those for ⁶²Cr and 62Ge are scarce. The level lifetime data are available in very few cases. The radioactive decay schemes of ⁶²Ti and ⁶²Ge are unknown, and those for ⁶²V, ⁶²Cr and 92-ms ⁶²Mn are scantily known. The data presented here supersede those in the earlier NDS publications.
Nuclear data sheets for A = 62
2000, Nuclear Data Sheets
The 1989 evaluation of A=62 (1990Ki08) has been revised using available experimental decay and reaction data since the last evaluation. In this evaluation there are some new data and reactions, such as T_1/2 for ⁶²Cr, ²⁰⁸Pb(⁶⁴Ni, Xγ) for ⁶²Fe, ⁶⁰Ni(α, ²He) and ⁶⁰Ni(¹²C, ¹⁰C) for ⁶²Ni, ⁵⁰Cr(¹⁶O, 3pnγ) for ⁶²Cu, ⁶⁰Ni(¹²C, ¹⁰Be) and ⁴⁰Ca(²⁸Si, α2pγ) for ⁶²Zn, and ⁴⁰Ca(HI, Xγ) for ⁶²Ga, specifically.
Nuclear data sheets for A = 62
1990, Nuclear Data Sheets
Mass and excited levels of the neutron-rich nuclei 73Zn and 74Zn studied with the 76Ge(14C, 17O) and (14C, 16O) reactions
1984, Nuclear Physics, Section A
Two-proton pickup in the zirconium region using the (6Li, 8B) reaction
1982, Nuclear Physics, Section A
Spectra at θ_lab = 8° have been measured for the ^{92, 94, 96, 98, 100}Mo(⁶Li, ⁸B)^{90, 92, 94, 96, 98}Zr and ^{90, 92, 94}Zr(⁶Li, ⁸B)^{88, 90, 92}Sr two-proton pickup reactions at 90 MeV. The strongest transitions to levels in the Zr isotopes are the 0⁺ → 0⁺ transitions to the g.s. and first excited 0⁺ states. The salient feature of the five Zr spectra is the large increase in 0⁺₂ transition strength relative to that of the g.s. which is observed in the two heaviest isotopes, ^{96, 98}Zr. In ⁹⁰Zr, the 0⁺₂ transition is weak whereas it is the dominant transition in ⁹⁸Zr with twice the g.s. strength. These large variations in relative cross section, which are reproduced by DWBA calculations, are attributed to changing g.s. proton configurations in Zr. In the Sr spectra, which are distinctly different from the Zrspectra, the strongest transitions to excited states are to 2⁺ rather than 0⁺ states. The (⁶Li, ⁸B) reaction seems to be adequately described as a one-step cluster transfer of a T = 1, S = 0 proton pair. The suitability of this reaction for measurements of two-proton pickup is discussed.
Nuclear data sheets for A = 62
1979, Nuclear Data Sheets
Nuclear structure data available through August 1, 1978 are compiled, and adopted level properties are given. The bulk of the data is presented pictorially for easy comparison. Experimental details, references, and additional comments, where required, are given in the text. All drawings, tables, and comments are reproduced from the computerized Evaluated Nuclear Structure Data File (ENSDF). Any additions or corrections desired by the users should be addressed to the evaluators for maintenance and updating of the computer file.

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^☆: Work supported in part by the Bundesministerium für Forschung und Technologie.

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Nuclear Physics A

Abstract

References (17)

Phys. Rev.

Phys. Rev.

Phys. Rev. Lett.

Bull. Am. Phys. Soc.

CEA-N-1700

Nucl. Instr.

Phys. Rev.

Cited by (15)

Nuclear Data Sheets for A = 62

Nuclear data sheets for A = 62

Nuclear data sheets for A = 62

Mass and excited levels of the neutron-rich nuclei <sup>73</sup>Zn and <sup>74</sup>Zn studied with the <sup>76</sup>Ge(<sup>14</sup>C, <sup>17</sup>O) and (<sup>14</sup>C, <sup>16</sup>O) reactions

Two-proton pickup in the zirconium region using the (<sup>6</sup>Li, <sup>8</sup>B) reaction

Nuclear data sheets for A = 62

The (18O, 20Ne) reaction on the even Ni isotopes and the mass of 62Fe☆

Abstract

Phys. Rev.

Phys. Rev.

Phys. Rev. Lett.

Bull. Am. Phys. Soc.

CEA-N-1700

Nucl. Instr.

Phys. Rev.

The (¹⁸O, ²⁰Ne) reaction on the even Ni isotopes and the mass of ⁶²Fe☆