Phase transitions above the yrast line in Dy-154

Authors
Ma, WC Martin, V Khoo, TL Lauritsen, T Egido, JL Ahmad, I Bhattacharyya, P Carpenter, MP Daly, PJ Grabowski, ZW Hamilton, JH Janssens, RVF Nisius, D Ramayya, AV Varmette, PG Zhang, CT
Citation
Wc. Ma et al., Phase transitions above the yrast line in Dy-154, PHYS REV L, 84(26), 2000, pp. 5967-5970
Citations number
20
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
84
Issue
26
Year of publication
2000
Pages
5967 - 5970
Database
ISI
SICI code
0031-9007(20000626)84:26<5967:PTATYL>2.0.ZU;2-O
Abstract
Spectra of the E2 quasicontinuum gamma rays feeding different spin regions of the Dy-154 yrast line have been extracted. These are compared with corre sponding theoretical spectra obtained by numerical simulations based on tem perature-dependent Hartree-Fock theory, with thermal shape fluctuations. In this manner, different regions of the spin-energy plane can be examined. T he results support the predictions of a smeared-out phase transition at hig h spin above the yrast line.