  The supersymmetric extension of the Standard Model can contain interactions
violating the so-called R-parity symmetry. Such couplings would lead to the
lepton and/or baryon number violation and modify deeply the phenomenology of
supersymmetry at future particle colliders. We have worked out tests of the
R-parity violating interactions. First, we have studied clear signals of the
single production of supersymmetric partners of the Standard Model particles,
which involves the R-parity violating interactions, in the context of physics
at next leptonic and hadronic colliders. The results show that strong
sensitivities could be obtained on the soft supersymmetry breaking parameters
and indicate the possibility of an improvement of one to two order of magnitude
concerning the present indirect limits on the values of several R-parity
violating coupling constants. Besides, it has been verified that the single
superpartner production analysis offers the opportunity to reconstruct in a
model independent way some superpartner masses with an high accuracy. Secondly,
we have studied CP symmetry violation effects, due to the complex phases of
R-parity violating coupling constants, in the pair production of either
fermions or sfermions of different flavors at future leptonic colliders. We
have seen notably that the single top quark production allows to test the CP
violation in the hadronic sector. The main conclusion of these works is that
complex phases of certain R-parity violating coupling constants could be
observed, and in particular within a scenario where those couplings would
exhibit a strong hierarchy in flavor space.
