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

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

2000-09-05

arxiv.org/abs/nucl-th/0009006v1

Phys.Rev.Lett. 87 (2001) 022501

Physics

Nuclear Physics

Nuclear Theory

14 pages, 4 eps figures included, RevTex

Scientific paper

10.1103/PhysRevLett.87.022501

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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