Strongly coupled rotational band in 33Mg

A.L. Richard*, H.L. Crawford, P. Fallon, A.O. Macchiavelli, V.M. Bader, D. Bazin, M. Bowry, C.M. Campbell, M.P. Carpenter, R.M. Clark, M. Cromaz, A. Gade, E. Ideguchi, H. Iwasaki, M.D. Jones, C. Langer, I.Y. Lee, C. Loelius, E. Lunderberg, C. MorseJ. Rissanen, M. Salathe, D. Smalley, S.R. Stroberg, D. Weisshaar, K. Whitmore, A. Wiens, S.J. Williams, K. Wimmer, T. Yamamato

*Corresponding author for this work

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Abstract

The "island of inversion" at N≈20 for the neon, sodium, and magnesium isotopes has long been an area of interest both experimentally and theoretically due to the subtle competition between 0p-0h and np-nh configurations leading to deformed shapes. However, the presence of rotational band structures, which are fingerprints of deformed shapes, have only recently been observed in this region. In this work, we report on a measurement of the low-lying level structure of 33Mg populated by a two-stage projectile fragmentation reaction and studied with the Gamma Ray Energy Tracking In-Beam Nuclear Array (GRETINA). The experimental level energies, ground-state magnetic moment, intrinsic quadrupole moment, and γ-ray intensities show good agreement with the strong-coupling limit of a rotational model.
Original languageEnglish
Article number011303
Number of pages6
JournalPhysical Review C
Volume96
Issue number1
DOIs
Publication statusPublished - 28 Jul 2017
Externally publishedYes

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Richard, A. L., Crawford, H. L., Fallon, P., Macchiavelli, A. O., Bader, V. M., Bazin, D., ... Yamamato, T. (2017). Strongly coupled rotational band in 33Mg. Physical Review C, 96(1), [011303]. https://doi.org/10.1103/PhysRevC.96.011303