SetNumberOfPartonsDynamically Class Reference

#include <SetNumberOfPartonsDynamically.h>

Inheritance diagram for SetNumberOfPartonsDynamically:

Public Member Functions
bool	canVetoProcessLevel ()
bool	doVetoProcessLevel (Pythia8::Event &process)
	SetNumberOfPartonsDynamically ()
	~SetNumberOfPartonsDynamically ()

Detailed Description

Definition at line 31 of file SetNumberOfPartonsDynamically.h.

Constructor & Destructor Documentation

SetNumberOfPartonsDynamically::SetNumberOfPartonsDynamically ( )

inline

Definition at line 36 of file SetNumberOfPartonsDynamically.h.

{}

SetNumberOfPartonsDynamically::~SetNumberOfPartonsDynamically ( )

inline

Definition at line 37 of file SetNumberOfPartonsDynamically.h.

{}

Member Function Documentation

bool SetNumberOfPartonsDynamically::canVetoProcessLevel ( )

inline

Definition at line 40 of file SetNumberOfPartonsDynamically.h.

{ return true; }

bool SetNumberOfPartonsDynamically::doVetoProcessLevel

(

Pythia8::Event &

process

)

Definition at line 5 of file SetNumberOfPartonsDynamically.cc.

References i, and nPartons.

                                                                     {
  
  int nPartons = 0;
  // Do not include resonance decay products in the counting.
  omitResonanceDecays(process);
  // Get the maximal quark flavour counted as "additional" parton.
  int nQuarksMerge = settingsPtr->mode("Merging:nQuarksMerge");
  // Loop through event and count.
  for(int i=0; i < int(workEvent.size()); ++i)
    if ( workEvent[i].isFinal()
      && workEvent[i].colType()!= 0
      && ( workEvent[i].id() == 21 || workEvent[i].idAbs() <= nQuarksMerge))
      nPartons++;
  // Set number of requested partons.
  settingsPtr->mode("Merging:nRequested", nPartons);
  // For UMEPS, also remove zero-parton contributions from prospective
  // subtractive events.
  bool doSubt = settingsPtr->flag("Merging:doUMEPSSubt")
            || settingsPtr->flag("Merging:doUNLOPSSubt");
  if (doSubt && nPartons == 0) return true;
  // Done
  return false;
  
}

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