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Phase transitions above the Yrast line in 154Dy
1Mississippi State University, Mississippi State, Mississippi 39762, USA.
Physical Review Letters
|September 16, 2000
Abstract:
Spectra of the E2 quasicontinuum gamma rays feeding different spin regions of the 154Dy yrast line have been extracted. These are compared with corresponding theoretical spectra obtained by numerical simulations based on temperature-dependent Hartree-Fock theory, with thermal shape fluctuations. In this manner, different regions of the spin-energy plane can be examined. The results support the predictions of a smeared-out phase transition at high spin above the yrast line.