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Demonstration of the auxiliary-field Monte Carlo approach for sd-shell nuclei

Ormand, W. E. and Dean, D. J. and Johnson, C. W. and Lang, G. H. and Koonin, S. E. (1994) Demonstration of the auxiliary-field Monte Carlo approach for sd-shell nuclei. Physical Review C, 49 (3). pp. 1422-1428. ISSN 0556-2813. http://resolver.caltech.edu/CaltechAUTHORS:ORMprc94

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Abstract

We apply the auxiliary-field Monte Carlo approach to the nuclear shell model in the 1s-0d configuration space. The Hamiltonian was chosen to have isovector pairing and isoscalar multipole-multipole interactions, and the calculations were performed within the fixed-particle, canonical ensemble. The results demonstrate the feasibility of the method for N≠Z even-even and odd-odd N=Z nuclei. In particular, static observables for even-even Ne isotopes and 22Na compare well with results obtained from exact diagonalization of the Hamiltonian. Response functions are presented for 22Ne and compared with exact results, and the viability of cranked calculations for N≠Z even-even nuclei is addressed. We present methods for computing observables in the canonical ensemble using Fourier extraction, and for determining the nucelar shape.


Item Type:Article
Additional Information:©1994 The American Physical Society Received 14 July 1993 This work was supported in part by the National Science Foundation (Grants No. PHY-90-13248 and PHY91-15574). W.E.O. would like to thank the Weingart Foundation for financial support.
Record Number:CaltechAUTHORS:ORMprc94
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ORMprc94
Alternative URL:http://dx.doi.org/10.1103/PhysRevC.49.1422
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5199
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:04 Oct 2006
Last Modified:26 Dec 2012 09:04

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