%0 Journal Article
%T Can one ever prove that neutrinos are Dirac particles?
%A Hirsch, M.
%A Srivastava, R.
%A Valle, J. W. F.
%J Physics Letters B
%D 2018
%V 781
%I Elsevier Science Bv
%@ 0370-2693
%G English
%F Hirsch_etal2018
%O WOS:000435653100039
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3632), last updated on Mon, 09 Jul 2018 12:58:21 +0000
%X According to the "Black Box" theorem the experimental confirmation of neutrinoless double beta decay (0 nu 2 beta) would imply that at least one of the neutrinos is a Majorana particle. However, a null 0 nu 2 beta signal cannot decide the nature of neutrinos, as it can be suppressed even for Majorana neutrinos. In this letter we argue that if the null 0 nu 2 beta decay signal is accompanied by a 0 nu 2 beta quadruple beta decay signal, then at least one neutrino should be a Dirac particle. This argument holds irrespective of the underlying processes leading to such decays.
%R 10.1016/j.physletb.2018.03.073
%U http://arxiv.org/abs/1711.06181
%U https://doi.org/10.1016/j.physletb.2018.03.073
%P 302-305