Equation Icon  P k′ = Frkecoil, (327 ) 2G ( ) 2 Fkrecoil ≡ ---6- QljS′p′′inQijM′a′′ss − QlMja′′′ssQijS′′p′in 𝜖ilk − --4Dl′M DiE′𝜖ilk 15c ( ) 3(c ) + -1--- Dj ′Djk ′′′+ Dj ′Djk′′′ + --1--- Dlj′′′Dij′′′− Dlj′′′Dij′′′ 𝜖ilk. 15c5 E E M M 540c6 E M M E