The $\Lambda K$ system production in the hadron interactions
  The A-dependence is observed in $x_F$-distributions for the $\Lambda K^0$ system produced with the small transverse momentum in the neutron-nucleus interactions. For the $\Lambda$ hyperons similar dependence isn't seen. The result is interpreted as an effect from intermediate excitative nucleon state, which decays into strange particles. Such interpretation is confirmed experimental data on $\Lambda K$ pair production in the pion-nucleon interactions. 
O.V.Bulekov, N.D.Galanina, V.S.Demidov, A.L.Endalov, I.E.Kiselevich,   M.A.Martemianov, V.I.Mikhailichenko, V.A.Okorokov, A....