message: PWGGA/GammaConv: Fixed wrong implementation of PCM smearing function
diff: @@ -4460,7 +4460,7 @@ void AliConversionMesonCuts::SmearParticle(AliAODConversionPhoton* photon)
  } else if (fUseMCPSmearing == 3) {
  facPSig = fRandom.Gaus(P,TMath::Sqrt(fPSigSmearingCte+fPSigSmearing*P*P));
  } else if (fUseMCPSmearing == 4) {
  - Double_t sigma = P*(TMath::Power(P,fPSigSmearing) - fPSigSmearingCte) *(TMath::Sqrt(fPSigSmearingRatio*fPSigSmearingRatio - 1))/0.135;
  + Double_t sigma = P*(TMath::Power(P,fPSigSmearing) + fPSigSmearingCte) *(TMath::Sqrt(fPSigSmearingRatio*fPSigSmearingRatio - 1))/0.135;
  facPSig = fRandom.Gaus(P,sigma);
  }
  }
  