HowTo get list of tracks/select tracks/etc.




Read this first:
You should issue following commands from the root prompt to get what you want.

To list tracks:

  • ListCdfTracks()
  • ListSvtTracks()
  • ListXftTracks()
  • ListCotTracks()

    To list cdfparticles(muons, electrons, photons):

  • ListCdfParicles(int pdg)
    • pdg(electron) = 11
    • pdg(muon) = 13
    • pdg(photon) = 22


    If you want to list all particles

  • ListCdfParicles()

    To select tracks:

  • SelectCdfTrack(id)
  • SelectSvtTrack(id)
  • SelectXftTrack(id)
  • SelectCotTrack(id)

    If you want to look which cdftrack corresponds to given particle do the following:

    root [0] ListCdfParticles() 
    -------- List of Cdf Particles --------
TEdCdfParticle:  pdg = 13 CdfTrackId = 377 Pt = 1.77032 Eta = 0.0248386 Phi = 3.29123
TEdCdfParticle:  pdg = 22 CdfTrackId = -1  Pt = 2.20698 Eta = 0.553515  Phi = 1.93267
TEdCdfParticle:  pdg = 13 CdfTrackId = 376 Pt = 2.69725 Eta = -0.982484 Phi = 2.53686
root [1] SelectCdfTrack(377)


    Draw tracks which have different silicon vertices(i.e. different VertexSi()) using diffferent colors:

  • CdfTrackVertices(2)

    Draw electrons in magenta, muons in green:

  • CdfTrackParticles()



    • Last modified December 10, 2001 by Andrei Loginov(loginov@fnal.gov)