V0branch

here and below, use the track   itself, don't dereference the temporary Ref

```
size_t indx=0;
const reco::TrackCollection& trackColl = trackHandle.product();
for (auto aTrack : trackColl){
  TrackRef tmpRef(trackHandle, indx++);//set and increment indx here, it's not used anywhere else
  ...
  ...
      if (aTrack.quality(qualities[ndx_] ...
      ...
      ... aTrack.normalizedChi2() < tkChi2Cut ... 
}
```