Progress in the parametrisation of the Neutrino sector

Abstract

Adding gauge singlets to the original Standard Model allows an explanation for the observed smallness of the neutrino masses using the seesaw mechanism. Following our plans presented in the last conference of this series we present the results for the non-standard setting, when the number of the singlets is smaller than the number of the SM generations.

Comments: 6 pages, 2 figures; revised version addressed the criticism of the editors, matches now the published version