if ((t->GetStatus()&AliESDtrack::kTRDout)==0) continue;
if ((t->GetStatus()&AliESDtrack::kTRDStop)!=0) continue;
if ((t->GetStatus()&AliESDtrack::kTRDout)==0) continue;
if ((t->GetStatus()&AliESDtrack::kTRDStop)!=0) continue;
Double_t x,par[5]; t->GetExternalParameters(x,par);
Double_t cov[15]; t->GetExternalCovariance(cov);
Double_t x,par[5]; t->GetExternalParameters(x,par);
Double_t cov[15]; t->GetExternalCovariance(cov);
//track length correction
Double_t rc=TMath::Sqrt(c->GetR()*c->GetR() + c->GetZ()*c->GetZ());
Double_t rt=TMath::Sqrt(x*x + par[0]*par[0] + par[1]*par[1]);
//track length correction
Double_t rc=TMath::Sqrt(c->GetR()*c->GetR() + c->GetZ()*c->GetZ());
Double_t rt=TMath::Sqrt(x*x + par[0]*par[0] + par[1]*par[1]);