中文

SMMC method for two-neutrino double beta decay

核理论 2009-10-28 v1

摘要

Shell Model Monte Carlo (SMMC) techniques are used to calculate two-neutrino double beta decay matrix elements. We validate the approach against direct diagonalization for 48^{48}Ca in the complete pfpf-shell using the KB3 interaction. The method is then applied to the decay of 76^{76}Ge in the (0f5/2,1p,0g9/2)(0f_{5/2},1p,0g_{9/2}) model space using a newly calculated realistic interaction. Our result for the matrix element is 0.13±0.050.13\pm0.05 MeV1^{-1}, in agreement with the experimental value.

关键词

引用

@article{arxiv.nucl-th/9510052,
  title  = {SMMC method for two-neutrino double beta decay},
  author = {P. B. Radha and D. J. Dean and S. E. Koonin and T. T. S. Kuo and K. Langanke and A. Poves and J. Retamosa and P. Vogel},
  journal= {arXiv preprint arXiv:nucl-th/9510052},
  year   = {2009}
}

备注

10 pages, 3 figures available at http://www.krl.caltech.edu/preprints/MAP.html