Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2000-10-30
Phys.Rev. C63 (2001) 044309
Physics
Nuclear Physics
Nuclear Experiment
21 pages including 2 tables and 11 figures
Scientific paper
10.1103/PhysRevC.63.044309
The primary gamma-ray spectra of 166-Er and 167-Er are deduced from the (3-He,alpha gamma) and (3-He,3-He' gamma) reaction, respectively, enabling a simultaneous extraction of the level density and the gamma-ray strength function. Entropy, temperature and heat capacity are deduced from the level density within the micro-canonical and the canonical ensemble, displaying signals of a phase-like transition from the pair-correlated ground state to an uncorrelated state at Tc=0.5 MeV. The gamma-ray strength function displays a bump around E-gamma=3 MeV, interpreted as the pygmy resonance.
Guttormsen M.
Melby E.
Rekstad J.
Schiller Avraham
Siem S.
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