Double_t tmpDeltaR=(phismall-phibig)*(phismall-phibig)+(etasmall-etabig)*(etasmall-etabig);
tmpDeltaR=TMath::Sqrt(tmpDeltaR);
//Fraction in the jet core
Double_t tmpDeltaR=(phismall-phibig)*(phismall-phibig)+(etasmall-etabig)*(etasmall-etabig);
tmpDeltaR=TMath::Sqrt(tmpDeltaR);
//Fraction in the jet core