Energy density functional study of nuclear matrix elements for neutrinoless $\beta\beta$ decay
Nuclear Theory
2010-12-28 v2
Abstract
We present an extensive study of nuclear matrix elements (NME) for the neutrinoless double beta decay of the nuclei Ca, Ge, Se, Zr, Mo, Cd, Sn, Te, Te, Xe, and Nd based on state-of-the-art energy density functional methods using the Gogny D1S functional. Beyond mean-field effects are included within the generating coordinate method with particle number and angular momentum projection for both initial and final ground states. We obtain a rather constant value for the NME's around 4.7 with the exception of Ca and Nd, where smaller values are found. We analyze the role of deformation and pairing in the evaluation of the NME and present detailed results for the decay of Nd.
Cite
@article{arxiv.1008.5260,
title = {Energy density functional study of nuclear matrix elements for neutrinoless $\beta\beta$ decay},
author = {Tomás R. Rodríguez and G. Martinez-Pinedo},
journal= {arXiv preprint arXiv:1008.5260},
year = {2010}
}
Comments
accepted in Phys. Rev. Lett