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BasicConsistency.cc
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BasicConsistency.cc
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// -*- C++ -*-
//
// BasicConsistency.cc is a part of Herwig++ - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2011 The Herwig Collaboration
//
// Herwig++ is licenced under version 2 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the BasicConsistency class.
//
#include "BasicConsistency.h"
#include "ThePEG/Interface/Parameter.h"
#include "ThePEG/Interface/Switch.h"
#include "ThePEG/Interface/ClassDocumentation.h"
#include "ThePEG/EventRecord/Event.h"
#include "ThePEG/Repository/EventGenerator.h"
#include "ThePEG/Persistency/PersistentOStream.h"
#include "ThePEG/Persistency/PersistentIStream.h"
#include "Herwig++/Utilities/EnumParticles.h"
#include "ThePEG/PDT/DecayMode.h"
using namespace Herwig;
using namespace ThePEG;
BasicConsistency::BasicConsistency()
: _epsmom(ZERO),_checkquark(true), _checkcharge(true),
_checkcluster(true), _checkBR(true),
_absolutemomentumtolerance(1*MeV), _relativemomentumtolerance(1e-5)
{}
IBPtr BasicConsistency::clone() const {
return new_ptr(*this);
}
IBPtr BasicConsistency::fullclone() const {
return new_ptr(*this);
}
void BasicConsistency::analyze(tEventPtr event, long, int, int) {
bool writeEvent=false;
set<tcPPtr> particles;
event->selectFinalState(inserter(particles));
int charge(-event->incoming().first->dataPtr()->iCharge()
-event->incoming().second->dataPtr()->iCharge());
Lorentz5Momentum
ptotal(-event->incoming().first->momentum()
-event->incoming().second->momentum());
const Energy beamenergy = ptotal.m();
for(set<tcPPtr>::const_iterator it = particles.begin();
it != particles.end(); ++it) {
if (_checkquark && (*it)->coloured()) {
cerr << "Had quarks in final state in event "
<< event->number()
<< '\n';
generator()->log() << "Had quarks in final state in event "
<< event->number() << '\n';
writeEvent = true;
}
else if( _checkcluster && (**it).id()==ParticleID::Cluster) {
cerr << "Had clusters in final state in event "
<< event->number()
<< '\n';
generator()->log() << "Had clusters in final state in event "
<< event->number() << '\n';
writeEvent = true;
}
charge += (*it)->dataPtr()->iCharge();
ptotal += (*it)->momentum();
bool problem=false;
LorentzDistance test;
for(unsigned int ix=0;ix<5;++ix) {
switch (ix) {
case 0:
test = (*it)->vertex();
break;
case 1:
test = (*it)->labVertex();
break;
case 2:
test = (*it)->decayVertex();
break;
case 3:
test = (*it)->labDecayVertex();
break;
case 4:
test = (*it)->lifeLength();
break;
}
problem |=
isnan(test.x()/mm) || isnan(test.y()/mm) ||
isnan(test.z()/mm) || isnan(test.t()/mm) ||
isinf(test.x()/mm) || isinf(test.y()/mm) ||
isinf(test.z()/mm) || isinf(test.t()/mm);
}
if(problem) {
generator()->log() << "Problem with position of " << **it << "\n"
<< (*it)->vertex()/mm << "\n"
<< (*it)->labVertex()/mm << "\n"
<< (*it)->decayVertex()/mm << "\n"
<< (*it)->labDecayVertex()/mm << "\n"
<< (*it)->lifeLength()/mm << "\n";
}
}
if ( _checkcharge && charge != 0 ) {
cerr << "\nCharge imbalance by "
<< charge
<< "in event "
<< event->number()
<< '\n';
generator()->log() << "Charge imbalance by "
<< charge
<< "in event "
<< event->number() << '\n';
writeEvent = true;
}
Energy mag = ptotal.m();
Energy ee = ptotal.e();
if (isnan(mag/MeV)) {
cerr << "\nMomentum is 'nan'; " << ptotal/MeV
<< " MeV in event " << event->number() << '\n';
generator()->log() <<"\nMomentum is 'nan'; " << ptotal/MeV
<< " MeV in event " << event->number() << '\n';
writeEvent = true;
}
const Energy epsilonmax = max( _absolutemomentumtolerance,
_relativemomentumtolerance * beamenergy );
if (abs(mag) > epsilonmax || abs(ee) > epsilonmax) {
cerr << "\nMomentum imbalance by " << ptotal/MeV
<< " MeV in event " << event->number() << '\n';
generator()->log() <<"\nMomentum imbalance by " << ptotal/MeV
<< " MeV in event " << event->number() << '\n';
writeEvent = true;
}
if (abs(mag) > _epsmom)
_epsmom = abs(mag);
if (abs(ee) > _epsmom)
_epsmom = abs(ee);
if (abs(ptotal.x()) > _epsmom)
_epsmom = abs(ptotal.x());
if (abs(ptotal.y()) > _epsmom)
_epsmom = abs(ptotal.y());
if (abs(ptotal.z()) > _epsmom)
_epsmom = abs(ptotal.z());
particles.clear();
event->select(inserter(particles), ThePEG::AllSelector());
for(set<tcPPtr>::const_iterator it = particles.begin();
it != particles.end(); ++it) {
bool problem=false;
LorentzDistance test;
for(unsigned int ix=0;ix<5;++ix) {
switch (ix) {
case 0:
test = (*it)->vertex();
break;
case 1:
test = (*it)->labVertex();
break;
case 2:
test = (*it)->decayVertex();
break;
case 3:
test = (*it)->labDecayVertex();
break;
case 4:
test = (*it)->lifeLength();
break;
}
problem |= isnan(test.m2()/mm/mm) || isinf(test.m2()/mm/mm);
}
if(problem) {
generator()->log() << "Problem with position of " << **it << "\n"
<< (*it)->vertex()/mm << "\n"
<< (*it)->labVertex()/mm << "\n"
<< (*it)->decayVertex()/mm << "\n"
<< (*it)->labDecayVertex()/mm << "\n"
<< (*it)->lifeLength()/mm << "\n";
writeEvent=true;
}
}
if(writeEvent) generator()->log() << *event;
}
void BasicConsistency::persistentOutput(PersistentOStream & os) const {
os << _checkquark << _checkcharge << _checkcluster << _checkBR
<< ounit(_absolutemomentumtolerance,MeV) << _relativemomentumtolerance;
}
void BasicConsistency::persistentInput(PersistentIStream & is, int) {
is >> _checkquark >> _checkcharge >> _checkcluster >> _checkBR
>> iunit(_absolutemomentumtolerance,MeV) >> _relativemomentumtolerance;
}
ClassDescription<BasicConsistency> BasicConsistency::initBasicConsistency;
// Definition of the static class description member.
void BasicConsistency::Init() {
static ClassDocumentation<BasicConsistency> documentation
("The BasicConsistency analysis handler checks for"
" momentum and charge conservation.");
static Switch<BasicConsistency,bool> interfaceCheckQuark
("CheckQuark",
"Check whether there are quarks in the final state",
&BasicConsistency::_checkquark, true, false, false);
static SwitchOption interfaceCheckQuarkCheck
(interfaceCheckQuark,
"Yes",
"Check for quarks",
true);
static SwitchOption interfaceCheckQuarkNoCheck
(interfaceCheckQuark,
"No",
"Don't check for quarks",
false);
static Switch<BasicConsistency,bool> interfaceCheckCharge
("CheckCharge",
"Check whether charge is conserved",
&BasicConsistency::_checkcharge, true, false, false);
static SwitchOption interfaceCheckChargeCheck
(interfaceCheckCharge,
"Yes",
"Check charge conservation",
true);
static SwitchOption interfaceCheckChargeNoCheck
(interfaceCheckCharge,
"No",
"Don't check charge conservation",
false);
static Switch<BasicConsistency,bool> interfaceCheckCluster
("CheckCluster",
"Check whether there are clusters in the final state",
&BasicConsistency::_checkcluster, true, false, false);
static SwitchOption interfaceCheckClusterCheck
(interfaceCheckCluster,
"Yes",
"Check for clusters",
true);
static SwitchOption interfaceCheckClusterNoCheck
(interfaceCheckCluster,
"No",
"Don't check for clusters",
false);
static Switch<BasicConsistency,bool> interfaceCheckBranchingRatios
("CheckBranchingRatios",
"Check whether the branching ratios of the particles add up to one.",
&BasicConsistency::_checkBR, true, false, false);
static SwitchOption interfaceCheckBranchingRatiosYes
(interfaceCheckBranchingRatios,
"Yes",
"Perform the check",
true);
static SwitchOption interfaceCheckBranchingRatiosNo
(interfaceCheckBranchingRatios,
"No",
"Don't perform the check",
false);
static Parameter<BasicConsistency,Energy> interfaceAbsoluteMomentumTolerance
("AbsoluteMomentumTolerance",
"The value of the momentum imbalance above which warnings are issued/MeV.\n"
"Final tolerance is the larger of AbsoluteMomentumTolerance and\n"
"RelativeMomentumTolerance*beam energy.",
&BasicConsistency::_absolutemomentumtolerance, MeV, 1*MeV, ZERO, 1e10*GeV,
false, false, true);
static Parameter<BasicConsistency,double> interfaceRelativeMomentumTolerance
("RelativeMomentumTolerance",
"The value of the momentum imbalance as a fraction of the beam energy\n"
"above which warnings are issued.\n"
"Final tolerance is the larger of AbsoluteMomentumTolerance and\n"
"RelativeMomentumTolerance*beam energy.",
&BasicConsistency::_relativemomentumtolerance, 1e-5, 0.0, 1.0,
false, false, true);
}
void BasicConsistency::dofinish() {
AnalysisHandler::dofinish();
cout << "\nBasicConsistency: maximum 4-momentum violation: "
<< _epsmom/MeV << " MeV\n";
}
void BasicConsistency::doinitrun() {
AnalysisHandler::doinitrun();
static double eps=1e-12;
for(ParticleMap::const_iterator it=generator()->particles().begin();
it!=generator()->particles().end();++it) {
if(it->second->stable()) continue;
double total(0.);
for(DecaySet::const_iterator dit=it->second->decayModes().begin();
dit!=it->second->decayModes().end();++dit) {
if((**dit).on()) total +=(**dit).brat();
}
if(abs(total-1.)>eps) {
cerr << "Warning: Total BR for "
<< it->second->PDGName()
<< " does not add up to 1. sum = " << total << "\n";
}
}
}

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