Open Access
Volume 88, Number 5, December 2009
Article Number 52001
Number of page(s) 5
Section Nuclear Physics
Published online 10 December 2009
EPL, 88 (2009) 52001
DOI: 10.1209/0295-5075/88/52001

Isoscalar g-factors of odd-odd N = Z nuclei

S. Yeager1, S. J. Q. Robinson2, L. Zamick1 and Y. Y. Sharon1

1   Department of Physics and Astronomy, Rutgers University - Piscataway, NJ 08854, USA
2   Department of Physics, Millsaps College - Jackson, MS 39210, USA

received 3 April 2009; accepted in final form 12 November 2009; published December 2009
published online 10 December 2009

It is known that the measured and calculated g-factors of 21+ states in even-even N = Z nuclei have values g $\cong$ 0.5. Both the collective model and the LS limit of the shell model (with L = 2, S = 0) can explain this. Here we note that the isoscalar g-factors of low-lying 1+, 3+, and 5+ T = 0 states in medium-mass odd-odd N = Z nuclei have also been measured to have values close to 0.5. An up-to-date compilation of the experimental values is presented. Also included are the results of large-scale shell model calculations which agree very well with the experimental data. We show that the isoscalar g-factors in N = Z nuclei also approach 0.5 in the large-l limit for a single-j shell model.

21.10.Ky - Electromagnetic moments.
21.60.Cs - Shell model.
03.65.Fd - Algebraic methods.

© EPLA 2009