Abstract
Three rotational bands in 108Sn have been investigated to high frequency via the 54Fe(58Ni,4p) reaction at 243 MeV. One of these bands is observed to undergo a band crossing at high spin. All three bands show a large decrease in their dynamic moments of inertia, to approximately one third of the rigid body value, as the rotational frequency approaches 1 MeV/. The structures of these bands are thought to be based on 2p-2h proton excitations across the Z=50 shell gap and their properties can be interpreted in terms of cranked Nilsson-Strutinsky calculations. Such calculations predict smooth band terminations for all three structures and a gradual shape change from collective prolate, at low spin, to noncollective oblate at high spin.
Original language | English |
---|---|
Pages (from-to) | 2763-2769 |
Number of pages | 7 |
Journal | Physical Review C - Nuclear Physics |
Volume | 53 |
Issue number | 6 |
DOIs | |
State | Published - Jun 1996 |
Externally published | Yes |