Resolve "50cm shift of lattice and FF detectors"

Closes #35 (closed)

src/hadronDownstreamBeamPipe.cpp

@@ -68,7 +68,7 @@ static Ref_t create_detector(Detector& det, xml_h e, SensitiveDetector sens)  {
   double drift_hadron_section_3_outer_r_ent = 20.5;
   double drift_hadron_section_3_inner_r_ex  = 5.0;
   double drift_hadron_section_3_outer_r_ex  = 5.2;
-  double drift_hadron_section_3_length  = 250.0;
+  double drift_hadron_section_3_length  = 100.0;
 
   double drift_hadron_section_4_inner_r = 5.0;
   double drift_hadron_section_4_outer_r = 5.2;