
(* description = "ee -> tttt+jets|ee -> tttt+jets|ee -> tttt|t t-bar t t-bar production in e+e-." *)

SelectInterference = {eQED -> 4};

SetParameters = JoinOptions[{ME -> 0}];

(* eextttxtx *) AddProcess[FeynArtsProcess -> {F[2,{1}], -F[2,{1}]} -> {F[3,{3}], -F[3,{3}], F[3,{3}], -F[3,{3}]}];

(* eextttxtxg *) AddReal[FeynArtsProcess -> {F[2,{1}], -F[2,{1}]} -> {F[3,{3}], -F[3,{3}], F[3,{3}], -F[3,{3}], V[5]}];

