Constraints on Neutrino Parameters by Neutrinoless Double Beta Decay Experiments
arXiv:hep-ph/0209218 · doi:10.1016/S0375-9474(03)01114-X
Abstract
Allowed regions on the m_l - cos{2θ_{12}} plane are extracted from results of neutrinoless double beta decay experiments. It is shown that 0.05 eV (0 eV) < m_l < 1.85 eV is obtained for the normal (inverted) hierarchy by using the LMA best fit parameters and the 0νββresult announced late last year, which is 0.05 eV < <m>_ββ< 0.84 eV with +/- 50% uncertainty of the nuclear matrix elements.
6 pages, 3 figures, iopart.cls. Invited talk at Beyond the Desert02, Oulu, Finland, 2-7 June 2002