The static moments and isomer shift of the Jπ=Kπ=8− isomeric state in 130 56Ba have been measured using the technique of collinear laser spectroscopy. The isomer has been found to have a magnetic dipole moment of −0.043(28) μN and a static quadrupole moment of +2.77(30) b. These values have been used to assign the state as a two neutron Image configuration corresponding to a prolate shape. The half-life of the isomer has been confirmed as 9.54(14) ms. The change in the mean square charge radius was found to be <r2>130m−<r2> 130g–s=−0.0473(30)fm2.
Moore, R., Bruce, A., Dendooven, P., Billowes, J., Campbell, P., Ezwam, A., Flanagan, K. T., Forest, D. H., Huikari, J., Jokinen, A., Nieminen, A., Thayer, H. L., Tungate, G., Zemlyanoi, S., & Äystö, J. (2002). Character of an 8- isomer of 130Ba. Physics Letters B, 547(3-4), 200-204. https://doi.org/10.1016/S0370-2693(02)02784-3