EvtMTree Class Reference

#include <EvtMTree.hh>

Public Member Functions
	EvtMTree (const EvtId *idtbl, int ndaug)
	~EvtMTree ()
EvtSpinAmp	amplitude (const vector< EvtVector4R > &product) const
void	addtree (const string &args)

Detailed Description

Definition at line 21 of file EvtMTree.hh.

Constructor & Destructor Documentation

EvtMTree()

EvtMTree::EvtMTree	(	const EvtId *	idtbl,
		int	ndaug )

Definition at line 20 of file EvtMTree.cc.

                                                  {
  for ( int i = 0; i < ndaug; ++i ) { _lbltbl.push_back( EvtPDL::name( idtbl[i] ) ); }
}

~EvtMTree()

EvtMTree::~EvtMTree

(

)

Definition at line 24 of file EvtMTree.cc.

                    {
  for ( int i = 0; i < _root.size(); ++i ) delete _root[i];
}

Member Function Documentation

addtree()

void EvtMTree::addtree

(

const string &

args

)

Definition at line 360 of file EvtMTree.cc.

                                          {
  vector<EvtMNode*> roots = parsenode( str, true );
  _norm                   = 0;
 
  for ( int i = 0; i < roots.size(); ++i )
  {
    if ( validTree( roots[i] ) )
    {
      _root.push_back( roots[i] );
      _norm = _norm + 1;
    }
    else delete roots[i];
  }
 
  _norm = 1.0 / sqrt( _norm );
}

amplitude()

EvtSpinAmp EvtMTree::amplitude

(

const vector< EvtVector4R > &

product

)

const

Definition at line 377 of file EvtMTree.cc.

                                                                         {
  if ( _root.size() == 0 )
  {
    report( ERROR, "EvtGen" ) << "No decay tree present." << endl;
    ::abort();
  }
 
  EvtSpinAmp amp = _root[0]->amplitude( product );
  for ( int i = 1; i < _root.size(); ++i )
  {
    // Assume that helicity amplitude is returned and rotate to standard
    // amplitude here, do this before adding the amplitudes (different
    // frames?)
    amp += _root[i]->amplitude( product );
  }
 
  return _norm * amp;
}

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

• EvtMTree.hh
• EvtMTree.cc