message: PWGGA/GammaConv: Modified NonLinearity fine tuning (2nd iteration)
diff: @@ -8503,7 +8503,7 @@ void AliCaloPhotonCuts::ApplyNonLinearity(AliVCluster* cluster, Int_t isMC, AliV
  // fine tuning for pp 13 TeV nominal B (set as default)
  } else {
  energy /= FunctionNL_kSDM(energy, 0.979235, -3.17131, -0.464198);
  - energy /= FunctionNL_DPOW(energy, 1.0508889228- 0.0025, -0.0521979548, -0.5000000000, 1.1101969933, -0.1080594716, -0.1948380491);
  + energy /= FunctionNL_DExp(energy, 1.0363369, 0.5659247074, -2.7818482972, 1.0437012864, 0.3620283273, -2.8321172480);
  energy /= 1.0025;
  if(cluster->GetNCells() == 1){ // different fine tuning for 1 cell clusters
  energy /= 0.99;
  