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Published April 8, 1996 | public
Journal Article Open

Shell model Monte Carlo method for two-neutrino double beta decay


Shell model Monte Carlo techniques are used to calculate two-neutrino double beta decay matrix elements. We test the approach against direct diagonalization for 48Ca in the complete pf shell using the KB3 interaction. The method is then applied to the decay of 76Ge in the (0f5/2,1p,0g9/2) model space using a newly calculated realistic interaction. Our result for the matrix element is 0.12±0.05 MeV-1, in reasonable agreement with the experimental value.

Additional Information

©1996 The American Physical Society. Received 24 October 1995. This work was carried out under grants from the NSF and the DOE. Computational cycles were provided by the Concurrent Supercomputing Consortium on the Intel Touchstone Delta and the Intel Paragon and on the IBM SP2 at the Maui High Performance Computing Center.


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