Class to inferface AAFH/DIAG36 Generator written in Fortran. More...

#include <AAFHInterface.h>

Collaboration diagram for AAFHInterface:

Public Types
enum	EMode { c_MuonParticle = 1 , c_MuonMuon = 2 , c_ElectonMuon = 3 , c_ElectronParticle = 4 , c_ElectonElectron = 5 }
	Generation mode. More...

enum	ERejection { c_Once = 1 , c_Twice = 2 }
	Rejection mode. More...

Public Member Functions
	AAFHInterface ()=default
	Default Constructor.

void	setMaxTries (int tries)
	Set the maximum number of tries to generate an event.

void	setGeneratorWeights (const std::vector< double > &weights)
	Set the relative weights for the sub generators.

void	setMaxWeights (double subgeneratorWeight, double finalWeight)
	Set the maximum expected weights for the rejection method. More...

void	setSupressionLimits (std::vector< double > limits)
	Set the suppression limits when calculation the matrix elements.

void	setMinimumMass (double minMass)
	Set the minimum invariant mass for the generated event.

void	setParticle (const std::string &particle)
	Set the particle type for modes c_MuonParticle and c_ElectronParticle.

int	getMaxTries () const
	Get the maximum number of tries to generate an event.

std::vector< double >	getGeneratorWeights () const
	Get the relative weights for the sub generators.

double	getMaxSubGeneratorWeight () const
	Get the maximum expected final weight for the rejection method.

double	getMaxFinalWeight () const
	Get the maximum expected subgenerator weight for the rejection method.

std::vector< double >	getSuppressionLimits () const
	Get suppression limits.

double	getMinimumMass () const
	Get the minimum invariant mass for the generated event.

std::string	getParticle () const
	Get the particle type for modes c_MuonParticle and c_ElectronParticle.

double	getTotalCrossSection () const
	Return total cross section.

double	getTotalCrossSectionError () const
	Return error on the total cross section.

void	initialize (double beamEnergy, EMode mode, ERejection rejection)
	initialize the generator

void	generateEvent (MCParticleGraph &mpg)
	generate one event and add it to the graph in CMS

void	finish ()
	calculate total cross section

Private Member Functions
void	updateParticle (MCParticleGraph::GraphParticle &p, double *q, int pdg, bool isInitial=false)
	update particle with generated values More...

Private Attributes
double	m_minMass {0}
	minimum invariant mass

std::string	m_particle {"tau-"}
	name of the particle for modes c_MuonParticle and c_ElectronParticle

int	m_particlePDG {0}
	pdg of the particle for modes c_MuonParticle and c_ElectronParticle, gets set in initialize()

Detailed Description

Class to inferface AAFH/DIAG36 Generator written in Fortran.

Almost all parameters can be set using this class. First all parameters should be set, then call initialize(), an arbitary number of generateEvent() and then finish(). After finish(), the total cross section can be obained using getTotalCrossSection()

Definition at line 29 of file AAFHInterface.h.

Member Enumeration Documentation

◆ EMode

enum EMode

Generation mode.

Enumerator
c_MuonParticle	E+E- -> Mu+Mu-L+L- where L can be anything, defaults to tau.
c_MuonMuon	E+E- -> Mu+Mu-Mu+Mu-.
c_ElectonMuon	E+E- -> E+E-Mu+Mu-.
c_ElectronParticle	E+E- -> E+E-L+L- where L can be anything, defaults to tau.
c_ElectonElectron	E+E- -> E+E-E+E-.

Definition at line 32 of file AAFHInterface.h.

                {
       c_MuonParticle = 1,
       c_MuonMuon = 2,
       c_ElectonMuon = 3,
       c_ElectronParticle = 4,
       c_ElectonElectron = 5,
     };

◆ ERejection

enum ERejection

Rejection mode.

Enumerator
c_Once	Apply rejection only once for the final event.
c_Twice	Apply rejection first for each sub generator and then for the final event.

Definition at line 46 of file AAFHInterface.h.

Member Function Documentation

◆ setMaxWeights()

void setMaxWeights	(	double	subgeneratorWeight,
		double	finalWeight
	)

Set the maximum expected weights for the rejection method.

If the weights are to large generation will be ineffective, if they are to small it will generate Error messages

Definition at line 168 of file AAFHInterface.cc.

 {
   input_.eswe = subgeneratorWeight;
   input_.esft = finalWeight;
 }

◆ updateParticle()

void updateParticle	(	MCParticleGraph::GraphParticle &	p,
		double *	q,
		int	pdg,
		bool	isInitial = `false`
	)

private

update particle with generated values

Parameters

p	MCParticle to be updated
q	4-Vector + mass from the generator
pdg	pdgcode of the particle
isInitial	incoming beam particles

Definition at line 255 of file AAFHInterface.cc.

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

generators/aafh/include/AAFHInterface.h
generators/aafh/src/AAFHInterface.cc

Public Types

Public Member Functions

Private Member Functions