AliMonitorHisto* fTrackPt; // pt distribution of TPC tracks
AliMonitorHisto* fTrackEta; // eta distribution of TPC tracks
AliMonitorHisto* fTrackPhi; // phi distribution of TPC tracks
+ AliMonitorHisto* fTrackNCl; // number of clusters per track
AliMonitorHisto* fTrackDEdxVsP; // dE/dx vs momentum distribution of TPC tracks
AliMonitorDataTPC* fData; // data for the monitor tree