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Phys. Rev. C 70, 064303 (2004) [9 pages]

Development of shell closures at N=32,34. I. β decay of neutron-rich Sc isotopes

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S. N. Liddick1,2, P. F. Mantica1,2, R. Broda3, B. A. Brown1,4, M. P. Carpenter5, A. D. Davies1,4, B. Fornal3, T. Glasmacher1,4, D. E. Groh1,2, M. Honma6, M. Horoi7, R. V. F. Janssens5, T. Mizusaki8, D. J. Morrissey1,2, A. C. Morton1, W. F. Mueller1, T. Otsuka9,10, J. Pavan11, H. Schatz1,4, A. Stolz1, S. L. Tabor11, B. E. Tomlin1,2, and M. Wiedeking11
1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
2Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
3Niewodniczanski Institute of Nuclear Physics, PL-31342, Cracow, Poland
4Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
5Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
6Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580, Japan
7Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859, USA
8Institute of Natural Sciences, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa 214-8580, Japan
9Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan
10RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Japan
11Department of Physics, Florida State University, Tallahassee, Florida 32306, USA

Received 28 July 2004; published 7 December 2004

Details regarding the β-decay properties of 54,55,56Sc are reported and compared with shell model predictions. The low-energy level structures of even-even 54,56Ti are presented, and the systematic variation of the energy of the first excited 21+ state is discussed in light of proposed shell closures at N=32,34 for the neutron-rich Ti isotopes.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.70.064303
DOI:
10.1103/PhysRevC.70.064303
PACS:
23.40.−s, 23.20.Lv, 27.40.+z, 21.60.Cs