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This commit is contained in:
Gabriele Cosmo
2016-06-09 15:58:43 +02:00
parent 96c8bcd0af
commit b79225fb37
7544 changed files with 245407 additions and 91099 deletions
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source/processes/hadronic/models/parton_string/diffraction/src/G4FTFParameters.cc
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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * 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. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
// $Id: G4FTFParameters.cc,v 1.4 2008/12/18 13:02:00 gunter Exp $
// GEANT4 tag $Name: geant4-09-02 $
//
#include "G4FTFParameters.hh"
G4FTFParameters::G4FTFParameters()
{;}
G4FTFParameters::~G4FTFParameters()
{;}
//**********************************************************************************************
G4FTFParameters::G4FTFParameters(const G4ParticleDefinition * particle,
G4double theA,
G4double theZ,
G4double s)
{
G4int PDGcode = particle->GetPDGEncoding();
G4int absPDGcode = std::abs(PDGcode);
G4double Elab = (s - 2*0.88*GeV*GeV)/(2*0.939*GeV)/GeV;
G4double Plab = std::sqrt(Elab * Elab - 0.88);
G4double LogPlab = std::log( Plab );
G4double sqrLogPlab = LogPlab * LogPlab;
//G4cout<<"G4FTFParameters Plab "<<Plab<<G4endl;
G4int NumberOfTargetProtons = (G4int) theZ;
G4int NumberOfTargetNeutrons = (G4int) theA- (G4int) theZ;
G4int NumberOfTargetNucleons = NumberOfTargetProtons + NumberOfTargetNeutrons;
G4double Xtotal, Xelastic;
if( absPDGcode > 1000 ) //------Projectile is baryon --------
{
G4double XtotPP = 48.0 + 0. *std::pow(Plab, 0. ) + 0.522*sqrLogPlab - 4.51*LogPlab;
G4double XtotPN = 47.3 + 0. *std::pow(Plab, 0. ) + 0.513*sqrLogPlab - 4.27*LogPlab;
G4double XelPP = 11.9 + 26.9*std::pow(Plab,-1.21) + 0.169*sqrLogPlab - 1.85*LogPlab;
G4double XelPN = 11.9 + 26.9*std::pow(Plab,-1.21) + 0.169*sqrLogPlab - 1.85*LogPlab;
Xtotal = ( NumberOfTargetProtons * XtotPP +
NumberOfTargetNeutrons * XtotPN ) / NumberOfTargetNucleons;
Xelastic = ( NumberOfTargetProtons * XelPP +
NumberOfTargetNeutrons * XelPN ) / NumberOfTargetNucleons;
}
else if( PDGcode == 211 ) //------Projectile is PionPlus -------
{
G4double XtotPiP = 16.4 + 19.3 *std::pow(Plab,-0.42) + 0.19 *sqrLogPlab - 0.0 *LogPlab;
G4double XtotPiN = 33.0 + 14.0 *std::pow(Plab,-1.36) + 0.456*sqrLogPlab - 4.03*LogPlab;
G4double XelPiP = 0.0 + 11.4*std::pow(Plab,-0.40) + 0.079*sqrLogPlab - 0.0 *LogPlab;
G4double XelPiN = 1.76 + 11.2*std::pow(Plab,-0.64) + 0.043*sqrLogPlab - 0.0 *LogPlab;
Xtotal = ( NumberOfTargetProtons * XtotPiP +
NumberOfTargetNeutrons * XtotPiN ) / NumberOfTargetNucleons;
Xelastic = ( NumberOfTargetProtons * XelPiP +
NumberOfTargetNeutrons * XelPiN ) / NumberOfTargetNucleons;
}
else if( PDGcode == -211 ) //------Projectile is PionMinus -------
{
G4double XtotPiP = 33.0 + 14.0 *std::pow(Plab,-1.36) + 0.456*sqrLogPlab - 4.03*LogPlab;
G4double XtotPiN = 16.4 + 19.3 *std::pow(Plab,-0.42) + 0.19 *sqrLogPlab - 0.0 *LogPlab;
G4double XelPiP = 1.76 + 11.2*std::pow(Plab,-0.64) + 0.043*sqrLogPlab - 0.0 *LogPlab;
G4double XelPiN = 0.0 + 11.4*std::pow(Plab,-0.40) + 0.079*sqrLogPlab - 0.0 *LogPlab;
Xtotal = ( NumberOfTargetProtons * XtotPiP +
NumberOfTargetNeutrons * XtotPiN ) / NumberOfTargetNucleons;
Xelastic = ( NumberOfTargetProtons * XelPiP +
NumberOfTargetNeutrons * XelPiN ) / NumberOfTargetNucleons;
}
else if( PDGcode == 111 ) //------Projectile is PionZero -------
{
G4double XtotPiP =(16.4 + 19.3 *std::pow(Plab,-0.42) + 0.19 *sqrLogPlab - 0.0 *LogPlab + //Pi+
33.0 + 14.0 *std::pow(Plab,-1.36) + 0.456*sqrLogPlab - 4.03*LogPlab)/2; //Pi-
G4double XtotPiN =(33.0 + 14.0 *std::pow(Plab,-1.36) + 0.456*sqrLogPlab - 4.03*LogPlab + //Pi+
16.4 + 19.3 *std::pow(Plab,-0.42) + 0.19 *sqrLogPlab - 0.0 *LogPlab)/2; //Pi-
G4double XelPiP =( 0.0 + 11.4*std::pow(Plab,-0.40) + 0.079*sqrLogPlab - 0.0 *LogPlab + //Pi+
1.76 + 11.2*std::pow(Plab,-0.64) + 0.043*sqrLogPlab - 0.0 *LogPlab)/2; //Pi-
G4double XelPiN =( 1.76 + 11.2*std::pow(Plab,-0.64) + 0.043*sqrLogPlab - 0.0 *LogPlab + //Pi+
0.0 + 11.4*std::pow(Plab,-0.40) + 0.079*sqrLogPlab - 0.0 *LogPlab)/2; //Pi-
Xtotal = ( NumberOfTargetProtons * XtotPiP +
NumberOfTargetNeutrons * XtotPiN ) / NumberOfTargetNucleons;
Xelastic = ( NumberOfTargetProtons * XelPiP +
NumberOfTargetNeutrons * XelPiN ) / NumberOfTargetNucleons;
}
else if( PDGcode == 321 ) //------Projectile is KaonPlus -------
{
G4double XtotKP = 18.1 + 0. *std::pow(Plab, 0. ) + 0.26 *sqrLogPlab - 1.0 *LogPlab;
G4double XtotKN = 18.7 + 0. *std::pow(Plab, 0. ) + 0.21 *sqrLogPlab - 0.89*LogPlab;
G4double XelKP = 5.0 + 8.1*std::pow(Plab,-1.8 ) + 0.16 *sqrLogPlab - 1.3 *LogPlab;
G4double XelKN = 7.3 + 0. *std::pow(Plab,-0. ) + 0.29 *sqrLogPlab - 2.4 *LogPlab;
Xtotal = ( NumberOfTargetProtons * XtotKP +
NumberOfTargetNeutrons * XtotKN ) / NumberOfTargetNucleons;
Xelastic = ( NumberOfTargetProtons * XelKP +
NumberOfTargetNeutrons * XelKN ) / NumberOfTargetNucleons;
}
else if( PDGcode ==-321 ) //------Projectile is KaonMinus ------
{
G4double XtotKP = 32.1 + 0. *std::pow(Plab, 0. ) + 0.66 *sqrLogPlab - 5.6 *LogPlab;
G4double XtotKN = 25.2 + 0. *std::pow(Plab, 0. ) + 0.38 *sqrLogPlab - 2.9 *LogPlab;
G4double XelKP = 7.3 + 0. *std::pow(Plab,-0. ) + 0.29 *sqrLogPlab - 2.4 *LogPlab;
G4double XelKN = 5.0 + 8.1*std::pow(Plab,-1.8 ) + 0.16 *sqrLogPlab - 1.3 *LogPlab;
Xtotal = ( NumberOfTargetProtons * XtotKP +
NumberOfTargetNeutrons * XtotKN ) / NumberOfTargetNucleons;
Xelastic = ( NumberOfTargetProtons * XelKP +
NumberOfTargetNeutrons * XelKN ) / NumberOfTargetNucleons;
}
else if( PDGcode == 311 ) //------Projectile is KaonZero ------
{
G4double XtotKP =( 18.1 + 0. *std::pow(Plab, 0. ) + 0.26 *sqrLogPlab - 1.0 *LogPlab + //K+
32.1 + 0. *std::pow(Plab, 0. ) + 0.66 *sqrLogPlab - 5.6 *LogPlab)/2; //K-
G4double XtotKN =( 18.7 + 0. *std::pow(Plab, 0. ) + 0.21 *sqrLogPlab - 0.89*LogPlab + //K+
25.2 + 0. *std::pow(Plab, 0. ) + 0.38 *sqrLogPlab - 2.9 *LogPlab)/2; //K-
G4double XelKP =( 5.0 + 8.1*std::pow(Plab,-1.8 ) + 0.16 *sqrLogPlab - 1.3 *LogPlab + //K+
7.3 + 0. *std::pow(Plab,-0. ) + 0.29 *sqrLogPlab - 2.4 *LogPlab)/2; //K-
G4double XelKN =( 7.3 + 0. *std::pow(Plab,-0. ) + 0.29 *sqrLogPlab - 2.4 *LogPlab + //K+
5.0 + 8.1*std::pow(Plab,-1.8 ) + 0.16 *sqrLogPlab - 1.3 *LogPlab)/2; //K-
Xtotal = ( NumberOfTargetProtons * XtotKP +
NumberOfTargetNeutrons * XtotKN ) / NumberOfTargetNucleons;
Xelastic = ( NumberOfTargetProtons * XelKP +
NumberOfTargetNeutrons * XelKN ) / NumberOfTargetNucleons;
}
else //------Projectile is undefined, Nucleon assumed
{
G4double XtotPP = 48.0 + 0. *std::pow(Plab, 0. ) + 0.522*sqrLogPlab - 4.51*LogPlab;
G4double XtotPN = 47.3 + 0. *std::pow(Plab, 0. ) + 0.513*sqrLogPlab - 4.27*LogPlab;
G4double XelPP = 11.9 + 26.9*std::pow(Plab,-1.21) + 0.169*sqrLogPlab - 1.85*LogPlab;
G4double XelPN = 11.9 + 26.9*std::pow(Plab,-1.21) + 0.169*sqrLogPlab - 1.85*LogPlab;
Xtotal = ( NumberOfTargetProtons * XtotPP +
NumberOfTargetNeutrons * XtotPN ) / NumberOfTargetNucleons;
Xelastic = ( NumberOfTargetProtons * XelPP +
NumberOfTargetNeutrons * XelPN ) / NumberOfTargetNucleons;
};
// Xtotal and Xelastic in mb
//----------- Geometrical parameters ------------------------------------------------
SetTotalCrossSection(Xtotal);
SetElastisCrossSection(Xelastic);
SetInelasticCrossSection(Xtotal-Xelastic);
// // Interactions with elastic ans inelastic collisions
SetProbabilityOfElasticScatt(Xtotal, Xelastic);
SetRadiusOfHNinteractions2(Xtotal/pi/10.);
//
/* //==== No elastic scattering ============================
SetProbabilityOfElasticScatt(Xtotal, 0.);
SetRadiusOfHNinteractions2((Xtotal-Xelastic)/pi/10.);
*/ //=======================================================
//G4cout<<" Rnn "<<Xtotal/pi/10.<<" "<<Xtotal/pi/10.*fermi*fermi<<G4endl;
//G4cout<<"G4FTFParameters Xt Xel MeV "<<Xtotal<<" "<<Xelastic<<" "<<GeV<<G4endl;
//-----------------------------------------------------------------------------------
SetSlope( Xtotal*Xtotal/16./pi/Xelastic/0.3894 ); // Slope parameter of elastic scattering
// (GeV/c)^(-2))
//G4cout<<"G4FTFParameters Slope "<<GetSlope()<<G4endl;
//-----------------------------------------------------------------------------------
SetGamma0( GetSlope()*Xtotal/10./2./pi );
//----------- Parameters of elastic scattering --------------------------------------
// Gaussian parametrization of
// elastic scattering amplitude assumed
SetAvaragePt2ofElasticScattering(1./(Xtotal*Xtotal/16./pi/Xelastic/0.3894)*GeV*GeV);
//----------- Parameters of excitations ---------------------------------------------
if( absPDGcode > 1000 ) //------Projectile is baryon --------
{
SetProjMinDiffMass(1.1); // GeV
SetProjMinNonDiffMass(1.1); // GeV
SetProbabilityOfProjDiff(0.95*std::pow(s/GeV/GeV,-0.35)); // 40/32 X-dif/X-inel
SetTarMinDiffMass(1.1); // GeV
SetTarMinNonDiffMass(1.1); // GeV
SetProbabilityOfTarDiff(0.95*std::pow(s/GeV/GeV,-0.35)); // 40/32 X-dif/X-inel
SetAveragePt2(0.3); // GeV^2
}
else if( absPDGcode == 211 || PDGcode == 111) //------Projectile is Pion -----------
{
SetProjMinDiffMass(0.5); // GeV
SetProjMinNonDiffMass(0.3); // GeV
SetProbabilityOfProjDiff(0.62*std::pow(s/GeV/GeV,-0.51)); // 40/32 X-dif/X-inel
SetTarMinDiffMass(1.1); // GeV
SetTarMinNonDiffMass(1.1); // GeV
SetProbabilityOfTarDiff(0.62*std::pow(s/GeV/GeV,-0.51)); // 40/32 X-dif/X-inel
/*
SetProjMinDiffMass(0.5);
SetProjMinNonDiffMass(0.3); // Uzhi 12.06.08
SetProbabilityOfProjDiff(0.05);
SetProbabilityOfTarDiff(0.05);
*/
SetAveragePt2(0.3); // GeV^2
}
else if( absPDGcode == 321 || PDGcode == -311) //------Projectile is Kaon -----------
{
SetProjMinDiffMass(0.7); // GeV 1.1
SetProjMinNonDiffMass(0.7); // GeV
SetProbabilityOfProjDiff(0.85*std::pow(s/GeV/GeV,-0.5)); // 40/32 X-dif/X-inel
SetTarMinDiffMass(1.1); // GeV
SetTarMinNonDiffMass(1.1); // GeV
SetProbabilityOfTarDiff(0.85*std::pow(s/GeV/GeV,-0.5)); // 40/32 X-dif/X-inel
SetAveragePt2(0.3); // GeV^2
}
else //------Projectile is undefined,
//------Nucleon assumed
{
SetProjMinDiffMass((particle->GetPDGMass()+160.*MeV)/GeV);
SetProjMinNonDiffMass((particle->GetPDGMass()+160.*MeV)/GeV);
SetProbabilityOfProjDiff(0.95*std::pow(s/GeV/GeV,-0.35)); // 40/32 X-dif/X-inel
SetTarMinDiffMass(1.1); // GeV
SetTarMinNonDiffMass(1.1); // GeV
SetProbabilityOfTarDiff(0.95*std::pow(s/GeV/GeV,-0.35)); // 40/32 X-dif/X-inel
SetAveragePt2(0.3); // GeV^2
};
//G4cout<<"G4FTFParameters Out"<<G4endl;
}
//**********************************************************************************************