message: Avoid overlap with ZEM in corrected position.
diff: @@ -860,7 +860,7 @@ void AliPIPEv3::CreateGeometry()
  voRB24CuTubeM->AddNode(voRB24CuTube, 1, gGeoIdentity);
  // Air outside tube with higher transport cuts
  TGeoVolume* voRB24CuTubeA = new TGeoVolume("voRB24CuTubeA",
  - new TGeoTube(25., 100., kRB24CuTubeL/2.), kMedAirHigh);
  + new TGeoTube(25., 100., (kRB24CuTubeL - 144.)/2.), kMedAirHigh);
  voRB24CuTubeA->SetVisibility(0);
  // Simplified DN 100 Flange
  TGeoVolume* voRB24CuTubeF = new TGeoVolume("voRB24CuTubeF",
  @@ -1636,7 +1636,7 @@ void AliPIPEv3::CreateGeometry()
  TGeoVolumeAssembly* voRB24 = new TGeoVolumeAssembly("RB24");
  // Cu Tube with two simplified flanges
  voRB24->AddNode(voRB24CuTubeM, 1, gGeoIdentity);
  - if (!fBeamBackground) voRB24->AddNode(voRB24CuTubeA, 1, gGeoIdentity);
  + if (!fBeamBackground) voRB24->AddNode(voRB24CuTubeA, 1, new TGeoTranslation(0., 0., 72));
  z = - kRB24CuTubeL/2 + kRB24CuTubeFL/2.;
  voRB24->AddNode(voRB24CuTubeF, 1, new TGeoTranslation(0., 0., z));
  z = + kRB24CuTubeL/2 - kRB24CuTubeFL/2.;
  