PionZeroList Class Reference

#include <PionZeroList.h>

Classes
class	f_less

Public Member Functions
	PionZeroList (Vp4 &input_vp)
void	set_cut (int index, double cut)
void	sort ()
void	reduce ()
void	print ()
void	refresh ()
int	get_num_pi0 ()
Vp4	get_pi0_list ()

Detailed Description

Definition at line 33 of file PionZeroList.h.

Constructor & Destructor Documentation

PionZeroList()

PionZeroList::PionZeroList

(

Vp4 &

input_vp

)

Definition at line 43 of file PionZeroList.cxx.

    : m_gam_vp( input_vp )
    , m_pi0_vp( 0 )
    , Vpi0_list( 0 )
    , m_low_cut( 0.11 )
    , m_high_cut( 0.15 ) {
  int m_Ngam( input_vp.size() );
  if ( m_Ngam < 2 ) cout << "number of photons less than 2" << endl;
  for ( int i = 0; i < m_Ngam - 1; i++ )
  {
    for ( int j = i + 1; j < m_Ngam; j++ )
    {
      double m_temp_mass( ( m_gam_vp[i] + m_gam_vp[j] ).m() );
      if ( m_temp_mass < m_low_cut || m_temp_mass > m_high_cut ) continue;
      PionZero m_temp_pi0( m_gam_vp[i], i, m_gam_vp[j], j );
      Vpi0_list.push_back( m_temp_pi0 );
    }
  }
  m_num_pi0 = Vpi0_list.size();
}

Member Function Documentation

get_num_pi0()

int PionZeroList::get_num_pi0 ( )

inline

Definition at line 41 of file PionZeroList.h.

{ return m_num_pi0; }

get_pi0_list()

Vp4 PionZeroList::get_pi0_list ( )

inline

Definition at line 42 of file PionZeroList.h.

{ return m_pi0_vp; }

print()

void PionZeroList::print

(

)

Definition at line 111 of file PionZeroList.cxx.

                         {
  std::cout << "number of pion0 in the list " << m_num_pi0 << std::endl;
  for ( int i = 0; i < Vpi0_list.size(); i++ )
  {
    std::cout << "i= " << i << endl;
    std::cout << "pi0 mass " << Vpi0_list[i].get_mass() << endl;
    std::cout << "pi0 goodness " << Vpi0_list[i].get_goodness() << endl;
    std::cout << "pi0 four momentum " << Vpi0_list[i].get_pi0_vp() << endl;
    std::cout << "fir gam index " << Vpi0_list[i].get_index( 0 ) << endl;
    std::cout << "sec gam index " << Vpi0_list[i].get_index( 1 ) << endl;
    std::cout << "fir gam mom " << Vpi0_list[i].get_gam_vp( 0 ) << endl;
    std::cout << "sec gam mom " << Vpi0_list[i].get_gam_vp( 1 ) << endl;
  }
}

reduce()

void PionZeroList::reduce

(

)

Definition at line 84 of file PionZeroList.cxx.

                          {
  std::vector<int>      gam_index_v( 0 );
  std::vector<PionZero> temp_pi0_list( 0 );
  for ( int i = 0; i < Vpi0_list.size(); i++ )
  {
    int temp_one( Vpi0_list[i].get_index( 0 ) );
    int temp_two( Vpi0_list[i].get_index( 1 ) );
    if ( find( gam_index_v.begin(), gam_index_v.end(), temp_one ) != gam_index_v.end() )
      continue;
    if ( find( gam_index_v.begin(), gam_index_v.end(), temp_two ) != gam_index_v.end() )
      continue;
    gam_index_v.push_back( temp_one );
    gam_index_v.push_back( temp_two );
    temp_pi0_list.push_back( Vpi0_list[i] );
  }
  Vpi0_list = temp_pi0_list;
  refresh();
}

refresh()

void PionZeroList::refresh

(

)

Definition at line 104 of file PionZeroList.cxx.

                           {
  m_num_pi0 = Vpi0_list.size();
  m_pi0_vp.clear();
  for ( int i = 0; i < m_num_pi0; i++ ) m_pi0_vp.push_back( Vpi0_list[i].get_pi0_vp() );
}

Referenced by reduce(), set_cut(), and sort().

set_cut()

void PionZeroList::set_cut	(	int	index,
		double	cut )

Definition at line 65 of file PionZeroList.cxx.

                                                  {
  if ( index < 1 ) m_low_cut = cut;
  else m_high_cut = cut;
  std::vector<PionZero>::iterator m_ind;
  for ( m_ind = Vpi0_list.begin(); m_ind != Vpi0_list.end(); m_ind++ )
  {
    double m_temp_mass( ( *m_ind ).get_mass() );
    if ( m_temp_mass < m_low_cut || m_temp_mass > m_high_cut ) Vpi0_list.erase( m_ind );
  }
  refresh();
}

sort()

void PionZeroList::sort

(

)

Definition at line 78 of file PionZeroList.cxx.

                        { // sort the pion0 list respect to goodness
  std::sort( Vpi0_list.begin(), Vpi0_list.end(), f_less() );
  refresh();
}

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The documentation for this class was generated from the following files:

• PionZeroList.h
• PionZeroList.cxx