//evaluate nMean
if(tsRight){
if(pNmean->GetEntries()==21) { //for backward compatibility
nmean=((TF1*)pNmean->At(3*chMip))->Eval(ts); //C6F14 Nmean for this chamber
} else {
//evaluate nMean
if(tsRight){
if(pNmean->GetEntries()==21) { //for backward compatibility
nmean=((TF1*)pNmean->At(3*chMip))->Eval(ts); //C6F14 Nmean for this chamber
} else {