Prospects for the search of $K^{0}_{S} \to \pi^{+}\pi^{-}e^{+}e^{-}$ at LHCb

The feasibility of observing the decay at LHCb is studied using simulated and real data. During the Run I of LHC, the yield of events expected per fb(−)(1) of pp collisions at TeV is found to be . A dedicated trigger selection has been developed for the 2016 data-taking. A large signal yield, per fb(−)(1), is expected in the LHC upgrade phase. Pseudoexperiments have been run to asses the feasibility of discovering evidence for the observation of the signal already in the Run I data-set.