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APS » Journals » Phys. Rev. Lett. » Volume 83 » Issue 16
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Phys. Rev. Lett. 83, 3150–3153 (1999)

Observation of Thermodynamical Properties in the 162Dy, 166Er, and 172Yb Nuclei

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E. Melby, L. Bergholt, M. Guttormsen, M. Hjorth-Jensen, F. Ingebretsen, S. Messelt, J. Rekstad, A. Schiller, S. Siem, and S. W. Ødegård
Department of Physics, University of Oslo, Box 1048 Blindern, N-0316 Oslo, Norway

Received 29 April 1999; published in the issue dated 18 October 1999

The density of accessible levels at low spin in the ( 3He,αγ) reaction has been extracted for the 162Dy, 166Er, and 172Yb nuclei. The nuclear temperature is measured as a function of excitation energy in the region of 0–6 MeV. The temperature curves reveal structures indicating the onset of new degrees of freedom. The heat capacity of the nuclear system is discussed within the framework of a canonical ensemble.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.3150
DOI:
10.1103/PhysRevLett.83.3150
PACS:
21.10.Ma, 24.10.Pa, 25.55.Hp, 27.70.+q
 
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