English

Shell model studies of the $^{130}Te$ neutrinoless double-beta decay

Nuclear Theory 2015-06-23 v1

Abstract

Most uncertainties regarding the theoretical study of the neutrinoless double-beta decay are related to the accuracy of the nuclear matrix elements that appear in the expressions of the lifetimes. We calculate the nuclear matrix elements for the 0νββ0\nu\beta\beta decay of 130Te^{130}Te in a shell model approach, using a recently proposed effective Hamiltonian. To ensure the reliability of the results, we investigate this Hamiltonian by performing calculations of spectroscopic quantities and comparing them to the latest experimental data available, and we analyze the 2νββ2\nu\beta\beta and the 0νββ0\nu\beta\beta decay nuclear matrix elements of 136^{136}Xe. Finally, we report new nuclear matrix for the 130^{130}Te considering the light neutrino exchange and heavy neutrino exchange mechanisms, alongside with an overview of some recent values reported in the literature.

Keywords

Cite

@article{arxiv.1411.4313,
  title  = {Shell model studies of the $^{130}Te$ neutrinoless double-beta decay},
  author = {Andrei Neacsu and Mihai Horoi},
  journal= {arXiv preprint arXiv:1411.4313},
  year   = {2015}
}

Comments

10 pages, 14 figures, 4 tables