Phase Transitions above the Yrast Line in {sup 154}Dy

Journal Article · Mon Jun 26 04:00:00 EDT 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.84.5967· OSTI ID:20216906

Ma, W C ^[1]; Martin, V ^[2]; Khoo, T L ^[3]; Lauritsen, T ^[3]; Egido, J L ^[4]; Ahmad, I ^[3]; Bhattacharyya, P ^[5]; Carpenter, M P ^[3]; Daly, P J ^[5]; Grabowski, Z W ^[5]

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1. Mississippi State University, Mississippi State, Mississippi 39762 (United States)
2. Analisis Numerico, Facultad de Informatica, Universidad Politecnica de Madrid, E-28660 Madrid, (Spain)
3. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
4. Departamento de Fisica Teorica C-XI, Universidad Autonoma de Madrid, E-28049 Madrid, (Spain)
5. Purdue University, West Lafayette, Indiana 47907 (United States)

Spectra of the E2 quasicontinuum {gamma} rays feeding different spin regions of the {sup 154}Dy 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. (c) 2000 The American Physical Society.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• OSTI ID: 20216906
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 84; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DYSPROSIUM 154
EXPERIMENTAL DATA
HARTREE-FOCK METHOD
PHASE TRANSFORMATIONS
SPIN
THEORETICAL DATA
YRAST STATES