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Advances in High Energy Physics
Volume 2014, Article ID 745082, 7 pages
Research Article

Constraints on Light Neutrino Parameters Derived from the Study of Neutrinoless Double Beta Decay

1Horia Hulubei Foundation, P.O. Box MG-12, Romania
2Horia Hulubei National Institute of Physics and Nuclear Engineering, P.O. Box MG-6, 077125 Magurele, Bucharest, Romania

Received 7 February 2014; Accepted 28 April 2014; Published 28 May 2014

Academic Editor: Abhijit Samanta

Copyright © 2014 Sabin Stoica and Andrei Neacsu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP3.


The study of the neutrinoless double beta decay mode can provide us with important information on the neutrino properties, particularly on the electron neutrino absolute mass. In this work we revise the present constraints on the neutrino mass parameters derived from the decay analysis of the experimentally interesting nuclei. We use the latest results for the phase space factors (PSFs) and nuclear matrix elements (NMEs), as well as for the experimental lifetime limits. For the PSFs we use values computed with an improved method reported very recently. For the NMEs we use values chosen from the literature on a case-by-case basis, taking advantage of the consensus reached by the community on several nuclear ingredients used in their calculation. Thus, we try to restrict the range of spread of the NME values calculated with different methods and, hence, to reduce the uncertainty in deriving limits for the Majorana neutrino mass parameter. Our results may be useful to have an updated image on the present neutrino mass sensitivities associated with measurements for different isotopes and to better estimate the range of values of the neutrino masses that can be explored in the future double beta decay (DBD) experiments.