  By using kinematical arguments we derive a theorem for the ratio: [production
cross-section of charged-neutral wino pairs plus anything else] over
[production cross-section of charged-neutral lepton pairs plus anything else].
We do that by working out the consequences of substituting the lepton pair with
a wino pair, leaving untouched everything else of the interaction. We apply
this result to the possible production of winos at LHC obtaining a lower bound
for the ratio of the number of charged-winos over charged-leptons tracks and
also find the average charged-wino track length, within a region in the
relevant parameter space (e.g. available energy and mass).
