[formula presented] phases in correlated production and decay of neutralinos in the minimal supersymmetric standard model

We investigate the associated production of neutralinos (Formula presented) accompanied by the neutralino leptonic decay (Formula presented) taking into account initial beam polarization and production-decay spin correlations in the minimal supersymmetric standard model with general (Formula presented) phases but without generational mixing in the slepton sector. The stringent constraints from the electron EDM on the (Formula presented) phases are also included in the discussion. Initial beam polarizations lead to three (Formula presented)-even distributions and one (Formula presented)-odd distribution, which can be studied independently of the details of the neutralino decays. We find that the production cross section and the branching fractions of the leptonic neutralino decays are very sensitive to the (Formula presented) phases. In addition, the production-decay spin correlations lead to several (Formula presented)-even observables such as lepton invariant mass distribution, and lepton angular distribution, and one interesting T-odd (Formula presented)-odd) triple product of the initial electron momentum and two final lepton momenta, the size of which might be large enough to be measured at the high-luminosity future electron-positron collider or can play a complementary role in constraining the (Formula presented) phases with the EDM constraints.