Gabriele Cosmo
97 lines
4.5 KiB
C++
97 lines
4.5 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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#ifndef G4FTFAnnihilation_h
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#define G4FTFAnnihilation_h 1
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// ------------------------------------------------------------
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// GEANT 4 class header file
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//
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// ---------------- G4FTFAnnihilation --------------
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// by Vladimir Uzhinsky, November 2010.
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// Annihilation used by Fritiof (FTF) model
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// Takes a projectile and a target
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// Produces strings (excited hadrons)
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// ------------------------------------------------------------
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#include "globals.hh"
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#include "G4FTFParameters.hh"
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#include "G4ThreeVector.hh"
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class G4VSplitableHadron;
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class G4ExcitedString;
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class G4FTFAnnihilation {
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public:
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G4FTFAnnihilation();
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virtual ~G4FTFAnnihilation();
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virtual G4bool Annihilate( G4VSplitableHadron* aPartner,
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G4VSplitableHadron* bPartner,
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G4VSplitableHadron*& AdditionalString,
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G4FTFParameters* theParameters ) const;
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private:
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G4FTFAnnihilation( const G4FTFAnnihilation& right );
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const G4FTFAnnihilation& operator=( const G4FTFAnnihilation& right );
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G4bool operator==( const G4FTFAnnihilation& right ) const;
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G4bool operator!=( const G4FTFAnnihilation& right ) const;
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// The "Annihilate" method uses the following struct and 4 new utility methods:
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struct CommonVariables {
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G4int AQ[3], Q[3];
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G4bool RotateStrings = false;
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G4double S = 0.0, SqrtS = 0.0;
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G4LorentzVector Pprojectile, Ptarget;
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G4LorentzRotation toLab, RandomRotation;
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};
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G4bool Create3QuarkAntiQuarkStrings( G4VSplitableHadron* aPartner,
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G4VSplitableHadron* bPartner,
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G4VSplitableHadron*& AdditionalString,
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G4FTFParameters* theParameters,
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CommonVariables& common ) const;
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G4int Create1DiquarkAntiDiquarkString( G4VSplitableHadron* aPartner,
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G4VSplitableHadron* bPartner,
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CommonVariables& common ) const;
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G4int Create2QuarkAntiQuarkStrings( G4VSplitableHadron* aPartner,
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G4VSplitableHadron* bPartner,
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G4FTFParameters* theParameters,
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CommonVariables& common ) const;
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G4bool Create1QuarkAntiQuarkString( G4VSplitableHadron* aPartner,
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G4VSplitableHadron* bPartner,
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G4FTFParameters* theParameters,
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CommonVariables& common ) const;
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G4ThreeVector GaussianPt( G4double AveragePt2, G4double maxPtSquare ) const;
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G4double ChooseX( G4double Alpha, G4double Beta ) const;
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void UnpackBaryon( G4int IdPDG, G4int& Q1, G4int& Q2, G4int& Q3 ) const;
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};
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#endif
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