Fireworks FAQ

What do I see and and what does it mean?

  • barrel stand alone muon (CRUZET3). Short blue lines are muon segments, which are positioned in the global coordinates using simulation geometry. Blue cross is a 2D segment without z information. Red line is an extrapolation of the muon using muon fit information in global coordinates. Mismatch can be attributed to the difference between reconstruction geometry with alignment and simulation geometry.

  • Rho-Z view of a track with significant impact parameter. Discontinuity in the trajectory is a "feature", because its not a side view projection, but rho_-z. The sign is assigned based on sign of _y coordinate, but it's not y coordinate. If the track has significant impact parameter (d0), it's minimal rho is d0.
Topic attachments
I Attachment History Action Size Date Who Comment
GIFgif 62966_3274141.gif r1 manage 3.8 K 2008-10-03 - 17:20 DmytroKovalskyi Rho-Z view of a track with significant impact parameter
GIFgif barrel_sta_muon.gif r1 manage 9.8 K 2008-08-17 - 23:14 DmytroKovalskyi barrel stand alone muon (CRUZET3)
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Topic revision: r3 - 2008-10-03 - DmytroKovalskyi



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