a source module for the CMS pixel data quality monitor
The myth is that it does not save you much time by running over (alca)reco rather than raw data. This module takes
TrackCandidates as input for pixel hit-to-track residual calculation.
TrackCandidates are available neither in raw nor in reco data.
TrackCandidates are ever created from Trajectories and then discarded after Tracks are reconstructed.
TrackCandidates are NOT saved in reco data. At the current status,
SiPixelMonitorTrack always has to construct the
TrackCandidateCollection for the sake of its own good.
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ShanhueiChuang - 25 Sep 2008