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Published May 1, 1999 | public
Journal Article Open

Shell-model Monte Carlo studies of neutron-rich nuclei in the 1s-0d-1p-0f shells


We demonstrate the feasibility of realistic shell-model Monte Carlo (SMMC) calculations spanning multiple major shells, using a realistic interaction whose bad saturation and shell properties have been corrected by a newly developed general prescription. Particular attention is paid to the approximate restoration of translational invariance. The model space consists of the full sd-pf shells. We include in the study some well-known T=0 nuclei and several unstable neutron-rich ones around N=20,28. The results indicate that SMMC calculations can reproduce binding energies, B(E2) transitions, and other observables with an interaction that is practically parameter free. Some interesting insight is gained into the nature of deep correlations. The validity of previous studies is confirmed.

Additional Information

©1999 The American Physical Society. Received 16 November 1998. We acknowledge useful discussions with Petr Vogel and Dao-Chen Zheng. M.T.R. gratefully acknowledges support from the Weingart Foundation; he and S.E.K. were supported in part by the U.S. National Science Foundation under Grants Nos. PHY94-12818 and PHY94-20470. Oak Ridge National Laboratory is managed by Lockheed Martin Energy Research Corp. for the U.S. Department of Energy under Contract No. DE-AC05-96OR22464. K.L. acknowledges support from the Danish Research Council. Grants of computational resources were provided by the Center for Advanced Computational Research at Caltech and the Center of Computational Science at ORNL, as well as the National Energy Research Scientific Computing Center. Part of this work was conducted at the Aspen Center for Physics. D.J.D., K.L., and A.Z. acknowledge support from NATO Grant No. CRG.CRPG 973035.


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