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Thermal properties of 54Fe

Dean, D. J. and Koonin, S. E. and Langanke, K. and Radha, P. B. and Alhassid, Y. (1995) Thermal properties of 54Fe. Physical Review Letters, 74 (15). pp. 2909-2912. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:DEAprl95

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Abstract

We study the thermal properties of 54Fe with the Brown-Richter interaction in the complete 1p0f model space. Monte Carlo calculations show a peak in the heat capacity and rapid increases in both the moment of inertia and M1 strength near a temperature of 1.1 MeV that are associated with the vanishing of proton-proton and neutron-neutron monopole pair correlations; neutron-proton correlations persist to higher temperatures. Our results are consistent with a Fermi gas level density whose backshift vanishes with increasing temperature.


Item Type:Article
Additional Information:©1995 The American Physical Society. Received 4 May 1994; revised 19 December 1994. This work was supported in part by the National Science Foundation, Grants No. PHY90-13248 and No. PHY91-15574, and the Department of Energy, Contract No. DE-FG-0291-ER-40608. We are grateful to P. Vogel and W.E. Ormand for helpful discussions and to an anonymous referee for constructive criticism. Computational cycles were provided by the Concurrent Supercomputing Consortium and by the VPP500, a vector parallel processor at the RIKEN supercomputing facility; we thank Drs. I. Tanihata and S. Ohta for their assistance in using the latter.
Subject Keywords:STATIC PATH APPROXIMATION; FINITE-TEMPERATURE; HOT NUCLEI; SHELL; TRANSITIONS; SHAPE
Record Number:CaltechAUTHORS:DEAprl95
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:DEAprl95
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.74.2909
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6116
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:25 Nov 2006
Last Modified:26 Dec 2012 09:17

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