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Phys. Rev. C 72, 054321 (2005) [9 pages]

β-decay of odd-A 57Ti and 59V

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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, M. Horoi6, R. V. F. Janssens5, A. C. Morton1, W. F. Mueller1, J. Pavan7, H. Schatz1,4, A. Stolz1, S. L. Tabor7, B. E. Tomlin1,2, and M. Wiedeking7
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
6Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859, USA
7Department of Physics, Florida State University, Tallahassee, Florida 32306, USA

Received 22 July 2005; published 30 November 2005

The β-decay of odd-A, neutron-rich 57Ti and 59V are studied. More precise β-decay half-lives of 98±5 and 97±2 ms are deduced for 57Ti and 59V, respectively. In addition, β-delayed γ-ray spectroscopy is used to deduce β-decay branching ratios and establish the low-energy-level structures of the daughter nuclides. The new data for levels in 57V and 59Cr are compared with the results of shell-model calculations completed in the full pf model space. Both 57V and 59Cr show evidence of modest oblate deformation near the ground state.


©2005 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.72.054321
DOI: 10.1103/PhysRevC.72.054321
PACS: 23.40.-s, 25.70.Mn, 27.50.+e

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