Superdeformation in the Doubly Magic NucleusC2040a20

Authors :: T. Lauritsen
A. Axelsson
J. N. Wilson
P. Reiter
D. R. LaFosse
M. Weiszflog
F. Lerma
Martin Carpenter
A. V. Afanasjev
A. Galindo-Uribarri
C. J. Lister
D. Seweryniak
E. Ideguchi
W. Reviol
M. Devlin
Dirk Rudolph
C. Baktash
R. V. F. Janssens
D. G. Sarantites
Source :: Physical Review Letters. 87
Publication Year :: 2001
Publisher :: American Physical Society (APS), 2001.
Abstract: A rotational band with seven gamma -ray transitions between states with spin 2 (h) over bar and 16 (h) over bar has been observed in the doubly magic, self-conjugate nucleus Ca-40(20)20. The measured transition quadrupole moment of 1.80(-0.29)(+0.39)eb indicates a superdeformed shape with a deformation beta (2) = 0.59(-0.07)(+0.11). The features of this band are explained by cranked relativistic mean field calculations to arise from an 8-particle 8-hole excitation.