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Observation of Thermodynamical Properties in the $^{162}$Dy, $^{166}$Er and $^{172}$Yb Nuclei

E. Melby·L. Bergholt·M. Guttormsen·M. Hjorth-Jensen·F. Ingebretsen·S. Messelt·J. Rekstad·A. Schiller·S. Siem·S. W. Ødegård
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Abstract

The density of accessible levels in the ($^3$He,$αγ$) reaction has been extracted for the $^{162}$Dy, $^{166}$Er and $^{172}$Yb 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 new degrees of freedom. The heat capacity of the nuclear system is discussed within the framework of a canonical ensemble.

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E. Melby, L. Bergholt, M. Guttormsen, M. Hjorth-Jensen, F. Ingebretsen, S. Messelt, J. Rekstad, A. Schiller, S. Siem, S. W. Ødegård. 1999-04-29. Observation of Thermodynamical Properties in the $^{162}$Dy, $^{166}$Er and $^{172}$Yb Nuclei. https://doi.org/10.1103/physrevlett.83.3150

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