Hello all,
I’ve been using pyROOT for quite some time, however I am now looking into display some of my data using EVE event display so the time has come for me to dive into C. I’m definitely a beginner so sorry if this is an easy question!
I have a Tree with 50,000 events that has the branches p_px, p_py, p_pz, and p_E, with 6 particles per event. I am able to access the individual branches, however I am having a lot of trouble accessing the branch’s individual data points found in each event. I’ve been running myself in circles trying different methods, but so far I haven’'t been able to make anything work.
My code so far for reference:
void C_testing() {
TFile file("file.root");
TTree* tree = (TTree*)file.Get("tree.root");
TBranch *px_branch = tree->GetBranch("p_px");
TBranch *py_branch = tree->GetBranch("p_py");
TBranch *pz_branch = tree->GetBranch("p_pz");
TBranch *E_branch = tree->GetBranch("p_E");
}
My end goal is to specify an event number and output 6 separate TLorentzVector objects. Any advice, examples I can use, or good resources would be greatly appreciated!
Cheers,
Sam
ROOT Version: 6.12/07
Platform: Linux
Compiler: Unsure