  We calculate the total cross sections and probabilities of electromagnetic
productions of electron, muon and tauon pair productions simultaneously. At the
Large Hadron Collider (LHC), the available electromagnetic energy is sufficient
to produce all kind of leptons coherently. The masses of muon and tauon are
large, so their Compton wavelengths are small enough to interact with the
colliding nuclei. Therefore, the realistic nuclear form factors are included in
the calculations of electromagnetic pair productions. The cross section
calculations show that, at the LHC energies, the probabilities of simultaneous
productions of all kind of leptons are increased significantly compare to the
RHIC energies. Experimentally, observing this simultaneous production can give
us important informations about the strong QED.
