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Title: First determination of ground state electromagnetic moments of Fe 53

Here, the hyperfine coupling constants of neutron deficient 53Fe were deduced from the atomic hyperfine spectrum measured using the bunched-beam collinear laser spectroscopy technique. The low-energy 53Fe beam was produced by projectile-fragmentation reactions followed by gas stopping, and used for the first time for laser spectroscopy. Ground state magnetic-dipole and electric-quadrupole moments were determined as μ= –0.65(1)μ N and Q=+35(15)e 2fm 2, respectively. The multiconfiguration Dirac-Fock method was used to calculate the electric field gradient to deduce Q from the quadrupole hyperfine coupling constant, since the quadrupole coupling constant has not been determined for any Fe isotopes. Both experimental values agree well with nuclear shell model calculations using the GXPF1A effective interaction performed in a full fp shell model space, which support the soft nature of the 56Ni nucleus.
 [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [3] ;  [1] ;  [4] ;  [5] ;  [2] ;  [1] ;  [6] ;  [2] ;  [7] ;  [1]
  1. Michigan State Univ., East Lansing, MI (United States)
  2. Technische Univ. Darmstadt, Darmstadt (Germany)
  3. Helmholtz-Institut Jena, Jena (Germany); Friedrich-Schiller-Univ. Jena, Jena (Germany)
  4. Augustana Uiv., Sioux Falls, SD (United States)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. Argonne National Lab. (ANL), Lemont, IL (United States)
  7. TRIUMF, Vancouver, BC (Canada)
Publication Date:
Grant/Contract Number:
NA0002924; SC0013365; AC02-06CH11357; AC05-00OR22725
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 96; Journal Issue: 5; Journal ID: ISSN 2469-9985
American Physical Society (APS)
Research Org:
Michigan State Univ., East Lansing, MI (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP) (NA-10); National Science Foundation (NSF); German Research Foundation (DFG)
Country of Publication:
United States
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; laser spectroscopy; electromagnetic moments
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1409124; OSTI ID: 1421974