New Tensor Interactions and the $K_L$-$K_S$ Mass Difference
  The minimal standard electroweak model yields approximately half the observed value of the $K_L$-$K_S$ mass difference. Antisymmetric tensor fields incorporated into the standard model can provide the rest $0.5\times(\Delta m_{LS})_{\exp}$. The effective lepton--lepton, quark--lepton and quark--quark tensor interactions induced by the charged tensor particles are presented. 
M.V.Chizhov