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Signature of a Pairing Transition in the Heat Capacity of Finite Nuclei

S. Liu·Y. Alhassid
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Abstract

The heat capacity of iron isotopes is calculated within the interacting shell model using the complete $(pf+0g_{9/2})$-shell. We identify a signature of the pairing transition in the heat capacity that is correlated with the suppression of the number of spin-zero neutron pairs as the temperature increases. Our results are obtained by a novel method that significantly reduces the statistical errors in the heat capacity calculated by the shell model Monte Carlo approach. The Monte Carlo results are compared with finite-temperature Fermi gas and BCS calculations.

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S. Liu, Y. Alhassid. 2000-09-05. Signature of a Pairing Transition in the Heat Capacity of Finite Nuclei. https://doi.org/10.1103/physrevlett.87.022501

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