Evolution of single-particle structure near the N = 20 island of inversion
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The single-particle properties of Mg29 have been investigated via a measurement of the Mg28(d,p)Mg29 reaction, in inverse kinematics, using the ISOLDE Solenoidal Spectrometer. The negative-parity intruder states from the fp shell have been identified and used to benchmark modern shell-model calculations. The systematic data on the single-particle centroids along the N=17 isotones show good agreement with shell-model predictions in describing the observed trends from stability toward O25. However, there is also evidence that the effect of the finite geometry of the nuclear potential is playing a role on the behavior of the p orbitals near the particle-emission threshold.
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MacGregor, P. T., Sharp, D. K., Freeman, S. J., Hoffman, C. R., Kay, B. P., Tang, T. L., Gaffney, L. P., Baader, E. F., Borge, M. J. G., Butler, P. A., Catford, W. N., Cropper, B. D., de Angelis, G., Konki, J., Kröll, Th., Labiche, M., Lazarus, I. H., Lubna, R. S., Martel, I., … Yang, J. (2021). Evolution of single-particle structure near the N=20 island of inversion. In Physical Review C (Vol. 104, Issue 5). American Physical Society (APS). https://doi.org/10.1103/physrevc.104.l051301














