Pair excitations and a proton band crossing in superdeformed Gd150

Fallon, P. and Beausang, C.W. and Clarke, S. and Twin, P.J. and Beck, F.A. and Byrski, Th and Curien, D. and Dagnall, P.J. and DeFrance, G. and Duchêne, G. and Forsyth, P.D. and Haas, B. and Joyce, M.J. and Macchiavelli, A.O. and Paul, E.S. and Sharpey-Schafer, J.F. and Simpson, J. and Vivien, J.P. and Berg, S. and Nazarewicz, W. (1994) Pair excitations and a proton band crossing in superdeformed Gd150. Physical review letters, 73 (6). pp. 782-785. ISSN 1079-7114

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Abstract

An excited superdeformed (SD) band in 150 Gd is associated with a two-particle-two-hole proton excitation and provides the first evidence for collective proton pair excitations in a SD nucleus. This band is seen to exhibit a discontinuity in the γ-ray transition energies (backbending), which is interpreted as a band crossing associated with the alignment of a pair of N=6 protons. There is further evidence that this excited SD band decays into the yrast SD band.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
132376
Deposited By:
Deposited On:
01 Apr 2019 12:25
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 11:54