Jastrow functions in double-beta decay
Nuclear Theory
2011-03-22 v1
Abstract
We use simple analytic considerations and a Monte Carlo calculation of nucleons in a box to argue that the use of Jastrow functions as short-range correlators in the commonly employed two-body-cluster approximation causes significant errors in the matrix elements for double-beta decay. The Jastrow approach appears to agree with others, however, if many-body clusters are included. A careful treatment of the charge-changing analog of the nuclear pair density shows, in addition, that differences between Unitary Correlator Operator Method and Brueckner methods for treating short-range correlations in double-beta are less significant than suggested by previous work.
Cite
@article{arxiv.1101.0554,
title = {Jastrow functions in double-beta decay},
author = {J. Engel and J. Carlson and R. B. Wiringa},
journal= {arXiv preprint arXiv:1101.0554},
year = {2011}
}
Comments
6 pages, 5 figures