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Critical temperature for quenching of pair correlations

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

The level density at low spin in the 161,162-Dy and 171,172-Yb nuclei has been extracted from primary gamma rays. The nuclear heat capacity is deduced within the framework of the canonical ensemble. The heat capacity exhibits an S-formed shape as a function of temperature, which is interpreted as a fingerprint of the phase transition from a strongly correlated to an uncorrelated phase. The critical temperature for the quenching of pair correlations is found at Tc=0.50(4) MeV.

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A. Schiller, A. Bjerve, M. Guttormsen, M. Hjorth-Jensen, F. Ingebretsen, E. Melby, S. Messelt, J. Rekstad, S. Siem, S. W. Odegard. 2000-02-01. Critical temperature for quenching of pair correlations. https://doi.org/10.1103/physrevc.63.021306

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