Spins and magnetic moments of <SUP>58,60,62,64</SUP>Mn ground states and isomers

Heylen, H, Babcock, C, Billowes, J, Bissell, ML, Blaum, K, Campbell, P, Cheal, B, Ruiz, RF Garcia, Geppert, Ch, Gins, W
et al (show 9 more authors) (2015) Spins and magnetic moments of <SUP>58,60,62,64</SUP>Mn ground states and isomers. PHYSICAL REVIEW C, 92 (4). 044311-.

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The odd-odd 54;56;58;60;62;64Mn 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;64Mn 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.

Item Type: Article
Uncontrolled Keywords: nucl-ex, nucl-ex
Depositing User: Symplectic Admin
Date Deposited: 08 Jul 2016 08:08
Last Modified: 05 Oct 2023 09:26
DOI: 10.1103/PhysRevC.92.044311
Open Access URL: http://journals.aps.org/prc/abstract/10.1103/PhysR...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3002177