[PWGCF] use improved MC parameters (#10538)

Author: Luzhiyongg

PWGCF/Flow/Tasks/flowTask.cxx

@@ -432,8 +432,8 @@ struct FlowTask {
       hFindPtBin = new TH1D("hFindPtBin", "hFindPtBin", pTEffBins.size() - 1, &pTEffBins[0]);
       funcEff.resize(pTEffBins.size() - 1);
       // LHC24g3 Eff
-      std::vector<double> f1p0 = {0.7217476707, 0.7384792571, 0.7542625668, 0.7640680200, 0.7701951667, 0.7755299053, 0.7805901710, 0.7849446786, 0.7957356586, 0.8113039262, 0.8211968966, 0.8280558878, 0.8329342135};
-      std::vector<double> f1p1 = {-2.169488e-05, -2.191913e-05, -2.295484e-05, -2.556538e-05, -2.754463e-05, -2.816832e-05, -2.846502e-05, -2.843857e-05, -2.705974e-05, -2.477018e-05, -2.321730e-05, -2.203315e-05, -2.109474e-05};
+      std::vector<double> f1p0 = {0.6003720411, 0.6152630970, 0.6288860646, 0.6360694031, 0.6409494798, 0.6450540203, 0.6482117301, 0.6512592056, 0.6640008690, 0.6862631416, 0.7005738691, 0.7106567432, 0.7170728333};
+      std::vector<double> f1p1 = {-1.007592e-05, -8.932635e-06, -9.114538e-06, -1.054818e-05, -1.220212e-05, -1.312304e-05, -1.376433e-05, -1.412813e-05, -1.289562e-05, -1.050065e-05, -8.635725e-06, -7.380821e-06, -6.201250e-06};
       for (uint ifunc = 0; ifunc < pTEffBins.size() - 1; ifunc++) {
         funcEff[ifunc] = new TF1(Form("funcEff%i", ifunc), "[0]+[1]*x", 0, 3000);
         funcEff[ifunc]->SetParameters(f1p0[ifunc], f1p1[ifunc]);