Gabriele Cosmo
150 lines
5.6 KiB
C++
150 lines
5.6 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: G4ExcitedStringDecay.hh,v 1.7 2007/05/03 22:06:17 gunter Exp $
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// GEANT4 tag $Name: geant4-09-02 $
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//
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#ifndef G4ExcitedStringDecay_h
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#define G4ExcitedStringDecay_h 1
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#include "globals.hh"
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#include "G4VStringFragmentation.hh"
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#include "G4ExcitedStringVector.hh"
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#include "G4KineticTrackVector.hh"
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#include "G4LundStringFragmentation.hh"
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class G4ExcitedStringDecay: public G4VStringFragmentation
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{
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public:
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G4ExcitedStringDecay();
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G4ExcitedStringDecay(G4VLongitudinalStringDecay * aStringDecay);
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~G4ExcitedStringDecay();
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private:
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G4ExcitedStringDecay(const G4ExcitedStringDecay &right);
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const G4ExcitedStringDecay & operator=(const G4ExcitedStringDecay &right);
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int operator==(const G4ExcitedStringDecay &right) const;
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int operator!=(const G4ExcitedStringDecay &right) const;
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public:
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virtual G4KineticTrackVector * FragmentStrings(const G4ExcitedStringVector * theStrings);
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private:
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G4KineticTrackVector * FragmentString(const G4ExcitedString &theString);
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G4bool EnergyAndMomentumCorrector(G4KineticTrackVector* Output, G4LorentzVector& TotalCollisionMom);
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G4VLongitudinalStringDecay * theStringDecay;
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};
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inline
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G4KineticTrackVector *G4ExcitedStringDecay::
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FragmentString(const G4ExcitedString &theString)
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{
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if ( theStringDecay == NULL )
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theStringDecay=new G4LundStringFragmentation();
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return theStringDecay->FragmentString(theString);
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}
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inline
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G4KineticTrackVector *G4ExcitedStringDecay::
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FragmentStrings(const G4ExcitedStringVector * theStrings)
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{
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G4KineticTrackVector * theResult = new G4KineticTrackVector;
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G4LorentzVector KTsum;
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G4LorentzVector KTsecondaries;
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G4bool NeedEnergyCorrector=false;
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for ( unsigned int astring=0; astring < theStrings->size(); astring++)
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{
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KTsum+= theStrings->operator[](astring)->Get4Momentum();
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if( !(KTsum.e()<1) && !(KTsum.e()>-1) )
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{
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throw G4HadronicException(__FILE__, __LINE__,
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"G4ExcitedStringDecay::FragmentStrings received nan string...");
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}
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G4KineticTrackVector * generatedKineticTracks = NULL;
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if ( theStrings->operator[](astring)->IsExcited() )
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{
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generatedKineticTracks=FragmentString(*theStrings->operator[](astring));
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} else {
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generatedKineticTracks = new G4KineticTrackVector;
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generatedKineticTracks->push_back(theStrings->operator[](astring)->GetKineticTrack());
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}
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if (generatedKineticTracks == NULL)
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{
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G4cerr << "G4VPartonStringModel:No KineticTracks produced" << G4endl;
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continue;
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}
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G4LorentzVector KTsum1;
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for ( unsigned int aTrack=0; aTrack<generatedKineticTracks->size();aTrack++)
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{
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theResult->push_back(generatedKineticTracks->operator[](aTrack));
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KTsum1+= (*generatedKineticTracks)[aTrack]->Get4Momentum();
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}
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KTsecondaries+=KTsum1;
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if ( KTsum1.e() > 0 && std::abs((KTsum1.e()-theStrings->operator[](astring)->Get4Momentum().e()) / KTsum1.e()) > perMillion )
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{
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//--debug-- G4cout << "String secondaries(" <<generatedKineticTracks->size()<< ") momentum: "
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//--debug-- << theStrings->operator[](astring)->Get4Momentum() << " " << KTsum1 << G4endl;
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NeedEnergyCorrector=true;
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}
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// clean up
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delete generatedKineticTracks;
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}
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//--DEBUG G4cout << "Strings/secs total 4 momentum " << KTsum << " " <<KTsecondaries << G4endl;
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G4bool success=true;
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if ( NeedEnergyCorrector ) success=EnergyAndMomentumCorrector(theResult, KTsum);
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#ifdef debug_ExcitedStringDecay
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G4LorentzVector KTsum1=0;
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for ( unsigned int aTrack=0; aTrack<theResult->size();aTrack++)
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{
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G4cout << " corrected tracks .. " << (*theResult)[aTrack]->GetDefinition()->GetParticleName()
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<<" " << (*theResult)[aTrack]->Get4Momentum() << G4endl;
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KTsum1+= (*theResult)[aTrack]->Get4Momentum();
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}
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G4cout << "Needcorrector/success " << NeedEnergyCorrector << "/" << success << ", Corrected total 4 momentum " << KTsum1 << G4endl;
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if ( ! success ) G4cout << "failed to correct E/p" << G4endl;
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#endif
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return theResult;
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}
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#endif
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