Seminarium Kosmologia i Fizyka Cząstek

Majorana neutrinos lead naturally to the Lepton Flavour Violation (LFV). A superposition of Majorana states can mimic Dirac-type of neutrinos,leading to recovery of the Lepton Flavour Conservation (LFC). A strength of LFV is a measurable quantity, which in turn gives correlations among Majorana neutrino parameters at the level of mixing or mass matrices, thus revealing possible details of neutrino mass generation mechanism (e.g. see-saw type-I versus inverse see-saw). As far as TeV massive neutrinos are concerned, which are searched presently at the LHC, an example of possible heavy neutrino sector parametrization is discussed which is in agreement with low energy stringent LFV processes. This parametrization goes beyond simplified ATLAS and CMS analysis done so far and is proposed as a next step in direction of more complete future LHC searching analysis.