Thermal and electromagnetic properties of 166-Er and 167-Er

Details Thermal and electromagnetic properties of 166-Er and 167-Er Thermal and electromagnetic properties of 166-Er and 167-Er

2000-10-30

arxiv.org/abs/nucl-ex/0010019v1

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.

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