Gabriele Cosmo
78 lines
3.3 KiB
C++
78 lines
3.3 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4DiffractiveExcitation.hh,v 1.1 2003/10/07 11:25:59 hpw Exp $
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#ifndef G4DiffractiveExcitation_h
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#define G4DiffractiveExcitation_h 1
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// ------------------------------------------------------------
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// GEANT 4 class header file
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//
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// ---------------- G4DiffractiveExcitation --------------
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// by Gunter Folger, October 1998.
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// diffractive Excitation used by strings models
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// Take a projectile and a target
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// excite the projectile and target
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// ------------------------------------------------------------
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#include "globals.hh"
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class G4VSplitableHadron;
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class G4ExcitedString;
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#include "G4ThreeVector.hh"
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class G4DiffractiveExcitation
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{
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public:
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G4DiffractiveExcitation(G4double sigmaPt=0.6*GeV, G4double minExtraMass=250*MeV,G4double x0mass=250*MeV);
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virtual ~G4DiffractiveExcitation();
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virtual G4bool ExciteParticipants (G4VSplitableHadron *aPartner, G4VSplitableHadron * bPartner) const;
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virtual G4ExcitedString * String(G4VSplitableHadron * aHadron, G4bool isProjectile) const;
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// void SetPtWidth(G4double aValue) { widthOfPtSquare = aValue*aValue; }
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// void SetExtraMass(G4double aValue) { minExtraMass = aValue; }
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// void SetMinimumMass(G4double aValue) { minmass = aValue; }
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private:
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G4DiffractiveExcitation(const G4DiffractiveExcitation &right);
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G4double ChooseX(G4double Xmin, G4double Xmax) const;
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G4ThreeVector GaussianPt(G4double widthSquare, G4double maxPtSquare) const;
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const G4DiffractiveExcitation & operator=(const G4DiffractiveExcitation &right);
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int operator==(const G4DiffractiveExcitation &right) const;
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int operator!=(const G4DiffractiveExcitation &right) const;
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private:
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// Model Parameters:
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const G4double widthOfPtSquare; // width^2 of pt for string excitation
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const G4double minExtraMass; // minimum excitation mass
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const G4double minmass; // mean pion transverse mass; used for Xmin
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};
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#endif
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