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

S. Liu and Y. Alhassid
Phys. Rev. Lett. 87, 022501 – Published 25 June 2001
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Abstract

The heat capacity of iron isotopes is calculated within the interacting shell model using the complete (pf+0g9/2) 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.

  • Received 17 August 2000

DOI:https://doi.org/10.1103/PhysRevLett.87.022501

©2001 American Physical Society

Authors & Affiliations

S. Liu and Y. Alhassid

  • Center for Theoretical Physics, Sloane Physics Laboratory, Yale University, New Haven, Connecticut 06520

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Vol. 87, Iss. 2 — 9 July 2001

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