  This study searches for the kinematic selection criteria for estimation of
measurable MPI fraction in p-p collisions at \sqrt{s} = 14 TeV. The process
under study is the Monte-Carlo production of pair of W+ gauge bosons decaying
leptonically into a pair of same-sign muons. Specifically, the pseudo-rapidity
asymmetry is evaluated in order to demonstrate the MPI behavior against the
other physics background processes.
