Author/Authors :
Ackermann، D. نويسنده , , Scarlassara، F. نويسنده , , Beghini، S. نويسنده , , Montagnoli، G. نويسنده , , Segato، G.F. نويسنده , , Corradi، L. نويسنده , , Lin، CJ. نويسنده , , Stefanini، A.M. نويسنده , , Zheng، L.F. نويسنده ,
Abstract :
The high-spin structure of the nucleus 183Re has been studied following the 176Yb(11B,4n) reaction. High- K, multi-quasiparticle excitations compete with collective rotation in the formation of the yrast and near-yrast structures. Broken-pair (i13/2)^2 excitations (t-bands) play a dominant role, generating considerable angular momentum both along and perpendicular to the prolate symmetry axis. The stability of axially symmetric, prolate shapes is explored through comparisons with potential-energy-surface calculations. The possible onset of oblate rotation at high angular momentum is discussed.
