diff -u -r1.2 -r1.3
--- LCExtendedParticles.hh	6 Aug 2009 20:03:25 -0000	1.2
+++ LCExtendedParticles.hh	18 Aug 2009 23:14:32 -0000	1.3
@@ -7,6 +7,8 @@

 // geant4
 #include "G4VPhysicsConstructor.hh"
 #include "G4Decay.hh"

+#include "G4hIonisation.hh"
+#include "G4hMultipleScattering.hh"

 
 namespace slic
 {

@@ -26,6 +28,8 @@

 
             //LCExtendedDecay m_decay;
             G4Decay m_decay;

+            G4hIonisation m_ionise;
+            G4hMultipleScattering m_scatter;

     };
 }
 

diff -u -r1.2 -r1.3
--- LCExtendedParticles.cc	6 Aug 2009 20:03:26 -0000	1.2
+++ LCExtendedParticles.cc	18 Aug 2009 23:14:32 -0000	1.3
@@ -75,8 +75,15 @@

             G4ProcessManager* pmgr = pdef->GetProcessManager();
             if ( pdef->GetParticleType() == "extended" || pdef->GetParticleType() == "susy" )
             {

-                //G4cout << "adding decay to " << pdef->GetParticleName() << G4endl;
-                pmgr->AddProcess( &m_decay, -1, -1, 1 );

+                if (pdef->GetPDGCharge() != 0) 
+                {
+                    pmgr->AddProcess( &m_scatter, -1,  1, 1);  // multiple scattering (must go first)
+                    pmgr->AddProcess( &m_ionise,  -1,  2, 2 ); // ionisation
+                    pmgr->AddProcess( &m_decay,   -1, -1, 3 ); // decay 
+                }
+                else {
+                    pmgr->AddProcess( &m_decay,   -1, -1, 1 ); // decay 
+                }

             }
         }
     }