funcmass->FixParameter(0,totInt);
}
if (nFitPars==6){
funcmass->SetParNames("TotInt","Coef1","Coef2","SgnInt","Mean","Sigma");
funcmass->SetParameters(totInt,slope1,conc1,sgnInt,fMass,fSigmaSgn);
funcmass->FixParameter(0,totInt);
}
if (nFitPars==6){
funcmass->SetParNames("TotInt","Coef1","Coef2","SgnInt","Mean","Sigma");
funcmass->SetParameters(totInt,slope1,conc1,sgnInt,fMass,fSigmaSgn);