madgraph->pythia->delphes

[Qamar]

Dear folks,

I am new user of delphes. I am using madgraph followed by pythia and delphes. After running delphes, I get a root file: tag_1_delphes_events.root. When I analyze it with root, I get[1]. What's wrong here? It also has some plots. I don't know where these histos are filled?

Second thing, I am following delphes/examples. I am not using delphes cards (.tcl). I am just running
root -l examples/Example1.C'("delphes_output.root")'

Is there any difference? Is there anything which I am missing?

Thanks
Qamar

[1]
root -l tag_1_delphes_events.root
root [0]
Attaching file tag_1_delphes_events.root as _file0...
Warning in <TClass::Init>: no dictionary for class HepMCEvent is available
Warning in <TClass::Init>: no dictionary for class Event is available
Warning in <TClass::Init>: no dictionary for class Weight is available
Warning in <TClass::Init>: no dictionary for class GenParticle is available
Warning in <TClass::Init>: no dictionary for class SortableObject is available
Warning in <TClass::Init>: no dictionary for class Track is available
Warning in <TClass::Init>: no dictionary for class Tower is available
Warning in <TClass::Init>: no dictionary for class Jet is available
Warning in <TClass::Init>: no dictionary for class MissingET is available
Warning in <TClass::Init>: no dictionary for class Electron is available
Warning in <TClass::Init>: no dictionary for class Photon is available
Warning in <TClass::Init>: no dictionary for class Muon is available
Warning in <TClass::Init>: no dictionary for class ScalarHT is available
(TFile *) 0x55fd6aca6d00
root [1]