PAIR EXCITATIONS AND A PROTON BAND CROSSING IN SUPERDEFORMED GD-150

Authors
FALLON P BEAUSANG CW CLARKE S TWIN PJ BECK FA BYRSKI T CURIEN D DAGNALL PJ DEFRANCE G DUCHENE G FORSYTH PD HAAS B JOYCE MJ MACCHIAVELLI AO PAUL ES SHARPEYSCHAFER JF SIMPSON J VIVIEN JP ABERG S NAZAREWICZ W
Citation
P. Fallon et al., PAIR EXCITATIONS AND A PROTON BAND CROSSING IN SUPERDEFORMED GD-150, Physical review letters, 73(6), 1994, pp. 782-785
Citations number
20
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
73
Issue
6
Year of publication
1994
Pages
782 - 785
Database
ISI
SICI code
0031-9007(1994)73:6<782:PEAAPB>2.0.ZU;2-7
Abstract
An excited superdeformed (SD) band in 150Gd is associated with a two-p article-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 gamma-ray transition energies (back bending), which is interpreted as a band crossing associated with the alignment of a pair of N = 6 protons. There is further evidence that t his excited SD band decays into the yrast SD band.