CosmicsModule.cc

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
#include <generators/modules/CosmicsModule.h>
#include <framework/datastore/StoreArray.h>
 
using namespace std;
using namespace Belle2;
 
//-----------------------------------------------------------------
//                 Register the Module
//-----------------------------------------------------------------
REG_MODULE(Cosmics);
 
//-----------------------------------------------------------------
//                 Implementation
//-----------------------------------------------------------------
 
CosmicsModule::CosmicsModule() : Module()
{
  // Set module properties
  setDescription("cosmics generator to generate cosmic ray tracks");
  setPropertyFlags(c_Input);
  // Set default values for parameters
  m_parameters.level = 1;
  m_parameters.ipRequirement = 0;
  m_parameters.ipdr = 3.; // Only relevant for ipRequirement = 1
  m_parameters.ipdz = 3.; // Only relevant for ipRequirement = 1
  m_parameters.ptmin = 0.7;
  m_parameters.cylindricalR = 125.0;
 
  // Parameter definition
  addParam("level", m_parameters.level,
           "level of the generator (1 or 2 with slightly different kinematic distributions and mu+/mu- ratio), default is 1",
           m_parameters.level);
  addParam("ipRequirement", m_parameters.ipRequirement,
           "Radial and longitudinal constraints near the Interaction Point can be required (ipRequirement == 1), default is 0 (no additional IP requirements)",
           m_parameters.ipRequirement);
  addParam("ipdr", m_parameters.ipdr,
           "Constraint on the radial distance from the IP in cm, default is 3.", m_parameters.ipdr);
  addParam("ipdz", m_parameters.ipdz,
           "Constraint on the longitudinal distance from the IP in cm, default is 3, default is 3.", m_parameters.ipdz);
  addParam("ptmin", m_parameters.ptmin,
           "Minimal value of the transverse momentum in GeV, default is 0.7", m_parameters.ptmin);
  addParam("cylindricalR", m_parameters.cylindricalR,
           "Radius of tube around detector at whose surface particles are generated (in cm), default is 125, but this does not include whole Belle 2 detector!",
           m_parameters.cylindricalR);
}
 
void CosmicsModule::initialize()
{
  // Initialize MCParticle collection
  StoreArray<MCParticle> mcparticle;
  mcparticle.registerInDataStore();
 
  m_cosmics.setParameters(m_parameters);
}
 
 
void CosmicsModule::event()
{
  try {
    m_particleGraph.clear();
    m_cosmics.generateEvent(m_particleGraph);
    m_particleGraph.generateList();
  } catch (runtime_error& e) {
    B2ERROR(e.what());
  }
}