SetCuts.C

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/********************************************************************************
 *    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
 *                                                                              *
 *              This software is distributed under the terms of the             *
 *              GNU Lesser General Public Licence (LGPL) version 3,             *
 *                  copied verbatim in the file "LICENSE"                       *
 ********************************************************************************/

void SetCuts()
{
    cout << "SetCuts Macro: Setting Processes.." << endl;

    // ------>>>> IMPORTANT!!!!
    // For a correct comparison between GEANE and MC (pull distributions)
    // or for a simulation without the generation of secondary particles:
    // 1. set LOSS = 2, DRAY = 0, BREM = 1
    // 2. set the following cut values: CUTGAM, CUTELE, CUTNEU, CUTHAD, CUTMUO = 1 MeV or less
    //                                  BCUTE, BCUTM, DCUTE, DCUTM, PPCUTM = 10 TeV
    // (For an explanation of the chosen values, please refer to the GEANT User's Guide
    // or to message #5362 in the PandaRoot Forum >> Monte Carlo Engines >> g3Config.C thread)
    //
    // The default settings refer to a complete simulation which generates and follows also the secondary particles.

    gMC->SetProcess("PAIR", 1); 
    gMC->SetProcess("COMP", 1); 
    gMC->SetProcess("PHOT", 1); 
    gMC->SetProcess("PFIS", 0); 
    gMC->SetProcess("DRAY", 1); 
    gMC->SetProcess("ANNI", 1); 
    gMC->SetProcess("BREM", 1); 
    gMC->SetProcess("HADR", 1); 
    gMC->SetProcess("MUNU", 1); 
    gMC->SetProcess("DCAY", 1); 
    gMC->SetProcess("LOSS", 1); 
    gMC->SetProcess("MULS", 0); 
    Double_t cut1 = 1.0E-3;    // GeV --> 1 MeV
    Double_t cutb = 1.0E4;     // GeV --> 10 TeV
    Double_t tofmax = 1.E10;   // seconds
    cout << "SetCuts Macro: Setting cuts.." << endl;

    gMC->SetCut("CUTGAM", cut1);   
    gMC->SetCut("CUTELE", cut1);   
    gMC->SetCut("CUTNEU", cut1);   
    gMC->SetCut("CUTHAD", cut1);   
    gMC->SetCut("CUTMUO", cut1);   
    gMC->SetCut("BCUTE", cut1);    
    gMC->SetCut("BCUTM", cut1);    
    gMC->SetCut("DCUTE", cut1);    
    gMC->SetCut("DCUTM", cut1);    
    gMC->SetCut("PPCUTM", cut1);   
    gMC->SetCut("TOFMAX", tofmax); 
}