The antileptons have their respective generation's leptonic numbers of 1.

However, neutrino oscillations are known to violate the conservation of the individual leptonic numbers.

The branching ratio of the common purely leptonic tau decays are:

Beside the leptonic number, leptonic family numbers are also defined:

None of the special particle physics pseudo-charges (baryonic, leptonic, etc.) are conserved in the black hole.

The lepton family numbers arise from the fact that lepton number is usually conserved in each leptonic family.

Arthur Smith Neutrinoes do not have electric charge but they have the Leptonic charge.

Conservation of the leptonic numbers means that the number of leptons of the same type remains the same, when particles interact.

The members of each generation's weak isospin doublet are assigned leptonic numbers that are conserved under the Standard Model.

In the Standard Model, leptonic family numbers (LF numbers) would be preserved if neutrinos were massless.

The second most common decay mode of a pion, with probability 0.000123, is also a leptonic decay into an electron and the corresponding electron antineutrino.

The Michel parameters, usually denoted by and , are four parameters used in describing the phase space distribution of leptonic decays of charged leptons, .

The MSW effect can also modify neutrino oscillations in the Earth, and future search for new oscillations and/or leptonic CP violation may make use of this property.

Besides the purely leptonic decays of pions, also observed have been some structure-dependent radiative leptonic decays (that is, decay to the usual leptons plus a gamma ray).

Recent work on evaluating the importance of scientific papers using Google's PageRank algorithm identifies Cabibbo's paper "Unitary symmetry and leptonic decays" as the top ranked out of 353,268 articles published by the American Physical Society since 1893 in journals such as Physical Review Letters.