Which collections in the recon pass1 contain the following information?

1)  ECal clusters that may or may not be matched to a track (i assume this is "EcalClusters")

2)  Tracks in the SVT that may or may not be matched to a cluster

The reason why I am interested in this is because for one project (the muon/pion detection) I am interested in looking for events with 3 tracks in the SVT and 1 cluster in the Ecal, and filtering out other types of events.  For the other project (proton radius) I am interested in looking for events with exactly one track and exactly one cluster, so that i can look at just the elastic scattering with everything else filtered out.  (if there are 2 tracks and one cluster, it might be moeller scattering where one cluster is just missing, for instance if the particle just missed the ECal.  Or if there are 3 tracks and one cluster, it might be a muon or pion event).  

thanks.

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