On the possibility of distinguishing between Majorana and Dirac neutrinos

Abstract

We clarify that one cannot distinguish between Majorana and Dirac neutrinos in the limit of vanishing neutrino mass. In particular we show, that the forward-backward asymmetry in the reaction e^+ e^- -> \nu \nu is the same for \nu_M and \nu_D, in contrast to recent claims made in the literature.

Comments: LaTeX, 7 pages, 2 eps figures included