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Title: Strongly coupled rotational band in Mg 33

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 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.

Authors:
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Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Workforce Development for Teachers and Scientists; National Science Foundation (NSF); USDOE Office of Science - Office of Nuclear Physics
OSTI Identifier:
1389869
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review C; Journal Volume: 96; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Richard, A. L., Crawford, H. L., Fallon, P., Macchiavelli, A. O., Bader, V. M., Bazin, D., Bowry, M., Campbell, C. M., Carpenter, M. P., Clark, R. M., Cromaz, M., Gade, A., Ideguchi, E., Iwasaki, H., Jones, M. D., Langer, C., Lee, I. Y., Loelius, C., Lunderberg, E., Morse, C., Rissanen, J., Salathe, M., Smalley, D., Stroberg, S. R., Weisshaar, D., Whitmore, K., Wiens, A., Williams, S. J., Wimmer, K., and Yamamato, T. Strongly coupled rotational band in Mg33. United States: N. p., 2017. Web. doi:10.1103/PhysRevC.96.011303.
Richard, A. L., Crawford, H. L., Fallon, P., Macchiavelli, A. O., Bader, V. M., Bazin, D., Bowry, M., Campbell, C. M., Carpenter, M. P., Clark, R. M., Cromaz, M., Gade, A., Ideguchi, E., Iwasaki, H., Jones, M. D., Langer, C., Lee, I. Y., Loelius, C., Lunderberg, E., Morse, C., Rissanen, J., Salathe, M., Smalley, D., Stroberg, S. R., Weisshaar, D., Whitmore, K., Wiens, A., Williams, S. J., Wimmer, K., & Yamamato, T. Strongly coupled rotational band in Mg33. United States. doi:10.1103/PhysRevC.96.011303.
Richard, A. L., Crawford, H. L., Fallon, P., Macchiavelli, A. O., Bader, V. M., Bazin, D., Bowry, M., Campbell, C. M., Carpenter, M. P., Clark, R. M., Cromaz, M., Gade, A., Ideguchi, E., Iwasaki, H., Jones, M. D., Langer, C., Lee, I. Y., Loelius, C., Lunderberg, E., Morse, C., Rissanen, J., Salathe, M., Smalley, D., Stroberg, S. R., Weisshaar, D., Whitmore, K., Wiens, A., Williams, S. J., Wimmer, K., and Yamamato, T. Sat . "Strongly coupled rotational band in Mg33". United States. doi:10.1103/PhysRevC.96.011303.
@article{osti_1389869,
title = {Strongly coupled rotational band in Mg33},
author = {Richard, A. L. and Crawford, H. L. and Fallon, P. and Macchiavelli, A. O. and Bader, V. M. and Bazin, D. and Bowry, M. and Campbell, C. M. and Carpenter, M. P. and Clark, R. M. and Cromaz, M. and Gade, A. and Ideguchi, E. and Iwasaki, H. and Jones, M. D. and Langer, C. and Lee, I. Y. and Loelius, C. and Lunderberg, E. and Morse, C. and Rissanen, J. and Salathe, M. and Smalley, D. and Stroberg, S. R. and Weisshaar, D. and Whitmore, K. and Wiens, A. and Williams, S. J. and Wimmer, K. and Yamamato, T.},
abstractNote = {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 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.},
doi = {10.1103/PhysRevC.96.011303},
journal = {Physical Review C},
number = 1,
volume = 96,
place = {United States},
year = {Sat Jul 01 00:00:00 EDT 2017},
month = {Sat Jul 01 00:00:00 EDT 2017}
}