Neutrinoless double electron capture
Nuclear Theory
2015-09-08 v1
Abstract
Direct determination of the neutrino mass is at the present time one of the most important aims of experimental and theoretical research in nuclear and particle physics. A possible way of detection is through neutrinoless double electron capture, . This process can only occur when the energy of the initial state matches precisely that of the final state. We present here a calculation of prefactors (PF) and nuclear matrix elements (NME) within the framework of the microscopic interacting boson model (IBM-2) for Xe, Gd, Dy, Er, and W. From PF and NME we calculate the expected half-lives and obtain results that are of the same order as those of decay, but considerably longer than those of decay.
Cite
@article{arxiv.1509.01927,
title = {Neutrinoless double electron capture},
author = {J. Kotila and J. Barea and F. Iachello},
journal= {arXiv preprint arXiv:1509.01927},
year = {2015}
}