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Phys. Rev. C 77, 064309 (2008) [7 pages]

Structure of excited states in 21Mg studied in one-neutron knockout

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C. Aa. Diget1,*, P. Adrich1, D. Bazin1, M. D. Bowen1,2, B. A. Brown1,2, C. M. Campbell1, J. M. Cook1,2, A. Gade1,2, T. Glasmacher1,2, K. Hosier3, S. McDaniel1,2, D. McGlinchery3, A. Obertelli1, L. A. Riley3, K. Siwek1,2, J. R. Terry1,2, J. A. Tostevin4, and D. Weisshaar1
1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
2Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
3Department of Physics and Astronomy, Ursinus College, Collegeville, Pennsylvania 19426, USA
4Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom

See Also: Publisher's Note

Received 21 November 2007; published 11 June 2008; publisher error corrected 13 June 2008

Bound excited states in the neutron-deficient nucleus 21Mg were probed in the one-neutron knockout reaction 9Be(22Mg,21Mg+γ)X at 74 MeV/nucleon projectile energy. The low-lying level scheme of 21Mg was investigated for the first time with γ-ray spectroscopy. Contrary to the interpretation of previous particle spectroscopy data, our proposed excitation scheme is in agreement with the mirror nucleus and shell-model calculations in the p-sd shell. Spectroscopic factors for the one-neutron removal from 22Mg to 21Mg are extracted and compared to shell-model calculations using the WBP effective interaction.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.77.064309
DOI:
10.1103/PhysRevC.77.064309
PACS:
23.20.Lv, 21.10.Jx, 21.60.Cs, 27.30.+t

*diget@nscl.msu.edu

See Also

Publisher's Note: C. Aa. Diget, P. Adrich, D. Bazin, M. D. Bowen, B. A. Brown, C. M. Campbell, J. M. Cook, A. Gade, T. Glasmacher, K. Hosier, S. McDaniel, D. McGlinchery, A. Obertelli, L. A. Riley, K. Siwek, J. R. Terry, J. A. Tostevin, and D. Weisshaar, Publisher's Note: Structure of excited states in 21Mg studied in one-neutron knockout [Phys. Rev. C 77, 064309 (2008)], Phys. Rev. C 77, 069901 (2008).

 
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