corner
corner
APS » Journals » Phys. Rev. C » Volume 66 » Issue 2
< Previous Article | Next Article >

Phys. Rev. C 66, 021305(R) (2002) [5 pages]

Observation of excited states in the near-drip-line nucleus 125Pr

Download: PDF (97 kB) Buy this article Export: BibTeX or EndNote (RIS)

A. N. Wilson1, D. R. LaFosse2, J. F. Smith3, C. J. Chiara2,4, A. J. Boston5, M. P. Carpenter6, H. J. Chantler5, R. Charity4, P. T. W. Choy5, M. Devlin4, A. M. Fletcher3, D. B. Fossan2, R. V. F. Janssens6, D. G. Jenkins5,*, N. S. Kelsall7, F. G. Kondev6, T. Koike2, E. S. Paul5, D. G. Sarantites4, D. Seweryniak6, K. Starosta2, and R. Wadsworth7
1Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
2Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800
3Schuster Laboratory, The University of Manchester, Manchester M13 9PL, United Kingdom
4Department of Chemistry, Washington University, St. Louis, Missouri 63130
5Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom
6Argonne National Laboratory, Argonne, Illinois 60439
7Department of Physics, University of York, Heslington, York YO10 5DD, United Kingdom

Received 20 March 2002; published 23 August 2002

High-spin states have been observed in the near-drip-line nucleus 125Pr following the reaction 64Zn(64Zn,p2n). The detection of charged particles and neutrons evaporated from the compound system, along with the M/q of the recoiling nucleus, have allowed the identification of excited states in 125Pr and the unambiguous assignment of five rotational structures to this nucleus. This is the most neutron-deficient Pr isotope in which excited states have been observed. The strongest band is identified as the h11/2 single-quasiproton configuration, and is observed to a maximum spin of I=(67/2ħ). Another structure is interpreted as the g9/2 proton hole state, which is associated with bands of enhanced deformation observed in several nuclei in this mass region. These two bands are compared with analogous bands in the heavier odd-A Pr isotopes and changes in deformation are discussed.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.66.021305
DOI:
10.1103/PhysRevC.66.021305
PACS:
21.10.Re, 23.20.Lv, 27.60.+j

*Present address: Oliver Lodge Laboratory, The University of Liverpool, Liverpool L69 7ZE, United Kingdom.

 
< Previous Article | Next Article >