Hi, I use root 3.05/07 on linux 2.4.18-18.7.x.cern Red Hat 7.3 (Valhalla) My problem is that after run my program of analysis in which there are TLorentzVector and TCloneArray: ... TClonesArray *p4_pi_ini_recA = new TClonesArray("TLorentzVector", 3); TClonesArray *p4_ph_ini_recA = new TClonesArray("TLorentzVector", 7); TLorentzVector *p4_eta_gen = new TLorentzVector(); TLorentzVector *p4_eta_fin = new TLorentzVector(); TTree *res = new TTree("res","res di prova"); res->Branch("p4_ph_ini_recA." ,"TClonesArray" ,&p4_ph_ini_recA,32000,99); res->Branch("p4_pi_ini_recA." ,"TClonesArray" ,&p4_pi_ini_recA,32000,99); res->Branch("p4_eta_gen." ,"TLorentzVector",&p4_eta_gen); res->Branch("p4_eta_fin." ,"TLorentzVector",&p4_eta_fin); ... when I open the browser, with the right variable (leaf) "p4_eta_fin.fE" and (branch) "p4_eta_fin.fP" there is too the variable (branch) "p4_eta_fin.TObject" that I haven't create and I would like that it not exist. clicking on "p4_eta_fin.TObject", I see two leaf "p4_eta_fin.TObject.fBits" and "p4_eta_fin.TObject.fUniqueID". Same for the p4_eta_fin_fP.fBits and ...fP.fUniqueID What is it ? why there is this leaf (branch) ? how can I do to haven't this ? Thanks Francesco.
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