Pythia8::EnhanceMPI Class Reference

Inheritance diagram for Pythia8::EnhanceMPI:

Collaboration diagram for Pythia8::EnhanceMPI:

Public Member Functions
	EnhanceMPI ()
	~EnhanceMPI ()
bool	doVetoMPIStep (int nMPI, const Event &event)
bool	doVetoPartonLevel (const Event &)
bool	canVetoMPIStep ()
	Switch on calling of doVetoMPIStep. More...
int	numberVetoMPIStep ()
	Call doVetoMIStep three times First is the hard process second is first MPI emission or the second part of a double diffractive event or the second hard process if there is on. More...
bool	canVetoISREmission ()
	Switch on veto of ISR. More...
bool	canVetoFSREmission ()
	Switch off veto of FSR. More...
bool	canVetoPartonLevel ()
	Check the event after the generation of the parton level but before hadronisation. More...

Private Attributes
Pythia8_UserHooks::UserSetting< double >	m_pTCut
bool	m_passedEvent
int	m_nMPIVeto

Detailed Description

Definition at line 19 of file EnhanceMPI.cxx.

Constructor & Destructor Documentation

EnhanceMPI()

Pythia8::EnhanceMPI::EnhanceMPI ( )

inline

Definition at line 23 of file EnhanceMPI.cxx.

                : m_pTCut("EnhanceMPI:PTCut", 10.), m_nMPIVeto(3){
      
      std::cout<<"**********************************************************"<<std::endl;
      std::cout<<"*                                                        *"<<std::endl;
      std::cout<<"*        Enhancing MPI emissions with UserHook!          *"<<std::endl;
      std::cout<<"*                                                        *"<<std::endl;
      std::cout<<"**********************************************************"<<std::endl;
      
      m_passedEvent = 0;      
    }

~EnhanceMPI()

Pythia8::EnhanceMPI::~EnhanceMPI ( )

inline

Definition at line 34 of file EnhanceMPI.cxx.

{}

Member Function Documentation

canVetoFSREmission()

bool Pythia8::EnhanceMPI::canVetoFSREmission ( )

inline

Switch off veto of FSR.

Definition at line 88 of file EnhanceMPI.cxx.

{return false;}

canVetoISREmission()

bool Pythia8::EnhanceMPI::canVetoISREmission ( )

inline

Switch on veto of ISR.

Definition at line 86 of file EnhanceMPI.cxx.

{return false;}

canVetoMPIStep()

bool Pythia8::EnhanceMPI::canVetoMPIStep ( )

inline

Switch on calling of doVetoMPIStep.

Definition at line 75 of file EnhanceMPI.cxx.

{return true;}

canVetoPartonLevel()

bool Pythia8::EnhanceMPI::canVetoPartonLevel ( )

inline

Check the event after the generation of the parton level but before hadronisation.

Definition at line 90 of file EnhanceMPI.cxx.

{return true;}

doVetoMPIStep()

bool Pythia8::EnhanceMPI::doVetoMPIStep ( int  nMPI, const Event &  event  )

inline

Definition at line 36 of file EnhanceMPI.cxx.

                                                    {
      
      // MPI 1 is the hard process.  We do not veto that!
      if(nMPI < 2){
        m_passedEvent = false;
        return false;
      }
      
      if(m_passedEvent) return false;
      
      // start at the end of the event record and work back
      // This is prior to showering, so there should be at most 2 new MPI emissions
      // event[0] is documentation, so stop before that.
      size_t nEmissions=0;
      for(int ii=event.size()-1; ii > 0 && nEmissions != 2; --ii){
        if(event[ii].status() != 33) continue;
        if(event[ii].pT() > m_pTCut(settingsPtr)){
          m_passedEvent = true;
          return false;
        }
        
        ++nEmissions;
      }
      
      if(nMPI == m_nMPIVeto && !m_passedEvent){
        //        std::cout<<"Vetoing event on too-little MPI"<<std::endl;
        return true;
      }
      
      return false;
    }

doVetoPartonLevel()

bool Pythia8::EnhanceMPI::doVetoPartonLevel ( const Event &  )

inline

Definition at line 68 of file EnhanceMPI.cxx.

                                        {
      if(m_passedEvent) return false;
      
      return true;
    }

numberVetoMPIStep()

int Pythia8::EnhanceMPI::numberVetoMPIStep ( )

inline

Call doVetoMIStep three times First is the hard process second is first MPI emission or the second part of a double diffractive event or the second hard process if there is on.

Therefore check up to 3

Definition at line 84 of file EnhanceMPI.cxx.

{return m_nMPIVeto;}

Member Data Documentation

m_nMPIVeto

int Pythia8::EnhanceMPI::m_nMPIVeto

private

Definition at line 98 of file EnhanceMPI.cxx.

m_passedEvent

bool Pythia8::EnhanceMPI::m_passedEvent

private

Definition at line 96 of file EnhanceMPI.cxx.

m_pTCut

Pythia8_UserHooks::UserSetting<double> Pythia8::EnhanceMPI::m_pTCut

private

Definition at line 94 of file EnhanceMPI.cxx.

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

• EnhanceMPI.cxx