////////////////////////////////////////////////
// Manager class for TPC //
////////////////////////////////////////////////
-#include "AliDetector.h"
-#include "AliHit.h"
-#include "AliDigit.h"
-#include <TMatrixFfwd.h>
+class TFile;
class TTree;
+#include <TMatrixFfwd.h>
+#include <TVector.h>
-class TFile;
-class AliTPCParam;
class AliTPCDigitsArray;
-class AliTPCTrackHitsV2; // M.I.
-class AliTPCTrackHits; // M.I. -MI4 old hits - to be removed later
-//class TLorentzVector;
class AliTPCLoader;
+class AliTPCParam;
+class AliTPCTrackHits; // M.I. -MI4 old hits - to be removed later
+class AliTPCTrackHitsV2; // M.I.
+#include "AliDetector.h"
+#include "AliDigit.h"
+#include "AliHit.h"
class AliTPC : public AliDetector {