allow a bit more radius for OT than ML, so that we fit all the exceptions from the tiling that had -9, +3 as the maximum placements past the nominal radius

Author: JustusRudolph

Detectors/Upgrades/ALICE3/TRKFT3/FT3/simulation/src/FT3Layer.cxx

@@ -423,10 +423,12 @@ void FT3Layer::createLayer(TGeoVolume* motherVolume)
     double z_local_offset = z_layer_thickness / 2.0;
     // ensure staves fully encapsulated in the layer volume,
     // but don't cross out of max nominal radii of 38.5cm & 71.5cm respectively (3.5cm tolerance)
-    // Allow 9cm inward for OT:
-    double innerRadiusForAirTube = mIsMiddleLayer ? mInnerRadius : mInnerRadius - 9.0;
+    // Allow 3, 9cm outward, inward for OT:
+    double innerRadiusForAirTube =  mIsMiddleLayer ? mInnerRadius : mInnerRadius - 9.0;
+    double outerRadiusForAirTube = mIsMiddleLayer ? mOuterRadius + 2.0 : mOuterRadius + 3.0;
     // MvL: try 70.5 // 2.5 cm tolerance instead
-    TGeoTube* layer = new TGeoTube(innerRadiusForAirTube - 0.2, mOuterRadius + 2.49, z_layer_thickness / 2);
+    TGeoTube* layer = new TGeoTube(innerRadiusForAirTube - 0.2, outerRadiusForAirTube,
+                                   z_layer_thickness / 2);
     layerVol = new TGeoVolume(mLayerName.c_str(), layer, medAir);
 
     if (ft3Params.drawReferenceCircles) {