I don't understand why CP violation is insufficient to explain the observed baryon asymmetry? And how do you solve it using the lepton sector?
CKM - Cabibbo-Kobayashi-Maskawa Matrix: in the standard model of particle physics CKM matrix is a unitary matrix which contains information on the strength of flavour changing in weak decays (like in neutrino oscillations).
Neutron electric dipole moment: the neutron electric dipole moment - nEDM is a measure for the distrubution of positive and negative charge inside the neutron which his monopole is zero of course. Like in a dipole, a finite electric dipole moment can only exist if the centers of the negative and positive distribution inside the particle do not coincide.
MNS - Pontecorvo–Maki–Nakagawa–Sakata matrix: In order to explain the neutrino oscillations, one invented the MKS matrix that is a unitary matrix which contains information on the mismatch of neutrinos when they propagate freely and when they take part in the weak interactions. without this matrix, we will not be able to explain the neutrino oscillations.
Neutrino Oscillations: is a quantum mechanical phenomenon whereby a neutrino created with a specific lepton flavor can later be measured to have a different flavor. The probability of measuring a particular flavor for a neutrino varies between 3 known states as it propagates through space.