Import Geant4 6.0.0 source tree

2016-06-09 10:41:53 +02:00
parent 4aea781e80
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+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+//
+// $Id: G4VPartonStringModel.cc,v 1.2 2003/11/03 17:54:53 hpw Exp $
+// GEANT4 tag $Name: geant4-06-00 $
+//
+//// ------------------------------------------------------------
+//      GEANT 4 class implementation file
+//
+//      ---------------- G4VPartonStringModel ----------------
+//             by Gunter Folger, May 1998.
+//      abstract class for all Parton String Models
+// ------------------------------------------------------------
+
+
+#include "G4VPartonStringModel.hh"
+#include "G4ios.hh"
+#include "G4ShortLivedConstructor.hh"
+
+
+G4VPartonStringModel::G4VPartonStringModel()
+{
+//  Make shure Shotrylived partyicles are constructed.
+	G4ShortLivedConstructor ShortLived;
+	ShortLived.ConstructParticle();
+}
+
+G4VPartonStringModel::G4VPartonStringModel(const G4VPartonStringModel &) : G4VHighEnergyGenerator()
+{
+}
+
+
+G4VPartonStringModel::~G4VPartonStringModel()
+{
+}
+
+
+const G4VPartonStringModel & G4VPartonStringModel::operator=(const G4VPartonStringModel &)
+{
+  throw G4HadronicException(__FILE__, __LINE__, "G4VPartonStringModel::operator= meant to not be accessable");
+  return *this;
+}
+
+
+int G4VPartonStringModel::operator==(const G4VPartonStringModel &) const
+{
+ return 0;
+}
+
+int G4VPartonStringModel::operator!=(const G4VPartonStringModel &) const
+{
+  return 1;
+}
+
+G4KineticTrackVector * G4VPartonStringModel::Scatter(const G4Nucleus &theNucleus, 
+                                                const G4DynamicParticle &aPrimary)
+{  
+  G4ExcitedStringVector * strings = NULL;
+
+  G4DynamicParticle thePrimary=aPrimary;
+  
+  G4LorentzRotation toZ;
+  G4LorentzVector Ptmp=thePrimary.Get4Momentum();
+  toZ.rotateZ(-1*Ptmp.phi());
+  toZ.rotateY(-1*Ptmp.theta());
+  thePrimary.Set4Momentum(toZ*Ptmp);
+  G4LorentzRotation toLab(toZ.inverse());
+
+  G4int attempts = 0, maxAttempts=20;
+  while ( strings  == NULL )
+  {
+  	if (attempts++ > maxAttempts ) 
+  	{
+		throw G4HadronicException(__FILE__, __LINE__, "G4VPartonStringModel::Scatter(): fails to generate strings");
+  	}
+
+	theThis->Init(theNucleus,thePrimary);
+  	strings = GetStrings();
+  }
+  
+  G4KineticTrackVector * theResult = 0;
+  G4double stringEnergy(0);
+  for ( unsigned int astring=0; astring < strings->size(); astring++)
+  {
+//    rotate string to lab frame, models have it aligned to z
+    stringEnergy += (*strings)[astring]->GetLeftParton()->Get4Momentum().t();
+    stringEnergy += (*strings)[astring]->GetRightParton()->Get4Momentum().t();
+    (*strings)[astring]->LorentzRotate(toLab);
+  }
+  // G4cout << "Total string energy = "<<stringEnergy<<G4endl;
+  
+  theResult = stringFragmentationModel->FragmentStrings(strings);
+  std::for_each(strings->begin(), strings->end(), DeleteString() );
+  delete strings;
+
+  return theResult;
+}
+