The low excitation spectroscopy of 56, 57, 58Fe

doi:10.1016/0375-9474(78)90503-1

Nuclear Physics A

Volume 311, Issues 1–2, November 1978, Pages 75-92

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Abstract

The lifetimes of 21 states in ⁵⁸Fe up to an excitation energy of 4213 keV have been determined by means of the Doppler-shift attenuation method using the ⁵⁵Mn(α, pγ) reaction. These results complement other experimental data in an analysis of the structures of the ^{56 57 58}Fe nuclides. A shell-model study has also been carried out in which the protons are constrained to the $f_{72}$ shell while valence neutrons are restricted to the $f_{52} - p_{32} - p_{12}$ subgroup. Good agreement with most low excitation data is found, as well as with the triaxial rotor models for these nuclides.

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An update of the B(E2) evaluation for 0<inf>1</inf>+→2<inf>1</inf>+ transitions in even-even nuclei near N~Z~28
2012, Atomic Data and Nuclear Data Tables
An update of the B(E2) $↑$ evaluation for even–even Cr, Fe, Ni, and Zn nuclei is presented. It is a continuation of work by Raman et al. on B(E2) $↑$ values and was motivated by a large number of new measurements. It extends the previous evaluation from 20 to 38 nuclei and includes a comprehensive shell-model analysis. Evaluation policies for the analysis of experimental data are discussed. Future plans for a complete B(E2) $↑$ evaluation of even–even nuclei are outlined.
Nuclear Data Sheets for A = 58
2010, Nuclear Data Sheets
The evaluated spectroscopic data are presented for known nuclides of mass 58 (Ca,Sc,Ti,V,Cr,Mn,Fe,Co,Ni,Cu,Zn). Excited-state data are nonexistent for ⁵⁸Ca, ⁵⁸Sc, and ⁵⁸Zn; and very scarce for ⁵⁸Ti and ⁵⁸V, with only one tentative level in each case. Except for half-lives, no other radioactive decay data are available for the decay of ⁵⁸Sc and ⁵⁸Ti. The radioactive decays of ⁵⁸V, ⁵⁸Cr and ⁵⁸Zn are not considered as well established. Superdeformed structures are known in ⁵⁸Ni (two bands) and in ⁵⁸Cu (one band). Prompt proton decay of high-spin states in 58Ni for eight levels and prompt α decay for two states have been identified. In ⁵⁸Cu, one high-spin state decays by prompt proton emission. Very complex high-spin structures are now known for ⁵⁸Ni from the work by 2009Jo03.
Nuclear data sheets for A = 58
1997, Nuclear Data Sheets
A new multistep direct reaction mechanism: Collective excitations in the continuum
1996, Nuclear Physics A
We show that pre-equilibrium inelastic scattering reactions to the continuum contain substantial collective components in addition to the multistep direct and multistep compound reactions. These collective cross-sections are calculated using the experimental data for low-lying collective excitations supplemented where necessary by the giant multipole resonances evaluated using the energy-weighted sum rule. The MSC and MSD cross-sections are evaluated by the Feshbach-Kerman-Koonin theory using a consistent set of parameters determined by analyses of (p, n) reactions, that have practically no collective components. The results are compared with high-resolution neutron inelastic scattering data and prove able to account for the absolute magnitude of the cross-sections and also their detailed structure.
Nuclear Data Sheets update for A=58. Last evaluation: L. K. Peker Nuclear Data Sheets 42, 457 (1984)
1990, Nuclear Data Sheets
Lifetime measurements in 57Fe following the 56Fe(n, γ) and 56Fe(d, p) reactions
1989, Nuclear Physics, Section A
The novel method of γ-ray induced Doppler broadening (GRID) after thermal neutron capture has been applied to measure the mean lives of the 1627, 1725 and 3428 keV states in ⁵⁷Fe excited in the reaction ⁵⁶Fe(n, γ). The lifetimes of these three and many other states in ⁵⁷Fe have been determined using the ⁵⁶Fe(d, p) reaction. From a comparison of the lifetime values obtained in both reactions the stopping power of slow ⁵⁷Fe atoms (E < 500 eV) recoiling in the Fe target has been checked. Furthermore, many new transitions have been assigned to ⁵⁷Fe in the ⁵⁶(d, p) reaction. Energies, mean lives and transition strengths in ⁵⁷Fe have been compared with predictions of shell model calculations, involving 3p2h and 4p3h configurations.

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^☆: Research supported in part by Australian Research Grants Committee.

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Nuclear Physics A

Abstract

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An update of the B(E2) evaluation for 0<inf>1</inf><sup>+</sup>→2<inf>1</inf><sup>+</sup> transitions in even-even nuclei near N~Z~28

Nuclear Data Sheets for A = 58

Nuclear data sheets for A = 58

A new multistep direct reaction mechanism: Collective excitations in the continuum

Nuclear Data Sheets update for A=58. Last evaluation: L. K. Peker Nuclear Data Sheets 42, 457 (1984)

Lifetime measurements in <sup>57</sup>Fe following the <sup>56</sup>Fe(n, γ) and <sup>56</sup>Fe(d, p) reactions

The low excitation spectroscopy of 56, 57, 58Fe☆

Abstract

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The low excitation spectroscopy of ^{56, 57, 58}Fe☆