Signature of Neutrinos at the Large Hadron Collider

Supersymmetric models with bi-linear R-parity violation (BRpV) can
account for the observed neutrino masses and mixing parameters.  In
this model the lightest supersymmetric particle (LSP) is unstable with
large enough decay length. We will address the LSP properties-- such
as mass, lifetime, branching ratios at the Large Hadron Collider (LHC)
and reveal their relation to neutrino properties. In the second part,
we will discuss the neutrino mass generation in the Left-Right (LR)
symmetrical extension of the Standard Model. In this model heavy
right-handed neutrinos appear with masses of the order of TeV. We show
that the production and decays of such heavy neutrino leads to lepton
flavour violating signature and might be observed at the LHC.