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Journal Article

Spins and magnetic moments of 58,60,62,64Mn ground states and isomers

MPS-Authors
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Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Kreim,  Kim Dieter
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

Neugart ,  R.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Johannes Gutenberg-Universität Mainz, Institut für Kernchemie;

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Yordanov,  Deyan T.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

External Resource

http://link.aps.org/doi/10.1103/PhysRevC.92.044311
(Publisher version)

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Fulltext (public)

1508.06207v1
(Preprint), 578KB

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Citation

Heylen, H., Babcock, C., Billowes, J., Bissell, M., Blaum, K., Campbell, P., et al. (2015). Spins and magnetic moments of 58,60,62,64Mn ground states and isomers. Physical Review C, 92(4): 044311. doi:10.1103/PhysRevC.92.044311.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0028-EDBF-5
Abstract
The odd-odd 54,56,58,60,62,64 Mn isotopes (Z=25) were studied using bunched-beam collinear laser spectroscopy at ISOLDE, CERN. From the measured hyperfine spectra the spins and magnetic moments of Mn isotopes up to N=39 were extracted. The previous tentative ground state spin assignments of 58,60,62,64 Mn are now firmly determined to be I=1 along with an I=4 assignment for the isomeric states in 58,60,62Mn. The I=1 magnetic moments show a decreasing trend with increasing neutron number while the I=4 moments remain quite constant between N=33 and N=37. The results are compared to large-scale shell-model calculations using the GXPF1A and LNPS effective interactions. The excellent agreement of the ground state moments with the predictions from the LNPS calculations illustrates the need for an increasing amount of proton excitations across Z=28 and neutron excitations across N=40 in the ground state wave functions from N=37 onwards.