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Phys. Rev. C 65, 051308(R) (2002) [4 pages]

Core-excited smoothly terminating band in 114Xe

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E. S. Paul*, A. J. Boston, H. J. Chantler, and P. J. Nolan
Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom

M. P. Carpenter, R. V. F. Janssens, F. G. Kondev, and D. Seweryniak
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439

C. J. Chiara†, D. B. Fossan, T. Koike, K. Starosta, and D. R. LaFosse
Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, New York 11794-3800

A. M. Fletcher, J. C. Lisle, D. Patel, and J. F. Smith
Schuster Laboratory, University of Manchester, Brunswick Street, Manchester M13 9PL, United Kingdom

W. Reviol and D. G. Sarantites
Department of Chemistry, Washington University, St. Louis, Missouri 63130

R. Wadsworth and A. N. Wilson‡
Department of Physics, University of York, Heslington, York Y01 5DD, United Kingdom

I. Ragnarsson
Department of Mathematical Physics, Lund Institute of Technology, P.O. Box 118, S-22100 Lund, Sweden

Received 5 March 2002; published 2 May 2002

High-spin states have been studied in neutron-deficient  54114Xe, populated through the 58Ni(58Ni,2p) fusion-evaporation reaction at 230 MeV. The Gammasphere γ-ray spectrometer has been used in conjunction with the Microball charged-particle detector in order to select evaporation residues of interest. The yrast band has been greatly extended to a tentative spin of 52ħ and shows features consistent with smooth band termination. This band represents the first evidence for a core-excited (six-particle, two-hole) proton configuration above Z=53.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.65.051308
DOI:
10.1103/PhysRevC.65.051308
PACS:
21.10.Re, 23.20.Lv, 27.60.+j

*Electronic address: esp@ns.ph.liv.ac.uk

†Present address: Department of Chemistry, Washington University, St. Louis, MO 63130.

‡Present address: Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia.

 
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