LHAupLesHouches Class Reference

#include <LHAupLesHouches.h>

Inheritance diagram for LHAupLesHouches:

Public Member Functions
	LHAupLesHouches ()
void	loadEvent (lhef::LHEEvent *event)
void	loadRunInfo (lhef::LHERunInfo *runInfo)
void	setScalesFromLHEF (bool b)
	~LHAupLesHouches () override

Private Member Functions
bool	setEvent (int idProcIn) override
bool	setInit () override

Private Attributes
lhef::LHEEvent *	event
std::map< std::string, std::string > *	fEvAttributes
lhef::LHERunInfo *	runInfo
bool	setScalesFromLHEF_

Detailed Description

Definition at line 22 of file LHAupLesHouches.h.

Constructor & Destructor Documentation

LHAupLesHouches::LHAupLesHouches ( )

inline

Definition at line 24 of file LHAupLesHouches.h.

: setScalesFromLHEF_(false),fEvAttributes(nullptr) {;}

LHAupLesHouches::~LHAupLesHouches ( )

inlineoverride

Definition at line 36 of file LHAupLesHouches.h.

References fEvAttributes, setEvent(), and setInit().

{if(fEvAttributes) delete fEvAttributes;}

Member Function Documentation

void LHAupLesHouches::loadEvent ( lhef::LHEEvent *  event )

inline

Definition at line 31 of file LHAupLesHouches.h.

References event.

      { this->event = event; }

void LHAupLesHouches::loadRunInfo ( lhef::LHERunInfo *  runInfo )

inline

Definition at line 27 of file LHAupLesHouches.h.

References runInfo.

      { this->runInfo = runInfo; }

bool LHAupLesHouches::setEvent ( int  idProcIn )

overrideprivate

Definition at line 56 of file LHAupLesHouches.cc.

References lhef::HEPEUP::AQCDUP, lhef::HEPEUP::AQEDUP, edmScanValgrind::buffer, indexGen::comments, mps_fire::i, lhef::HEPEUP::ICOLUP, gen::PdfInfo::id, lhef::HEPEUP::IDPRUP, lhef::HEPEUP::IDUP, lhef::HEPEUP::ISTUP, lhef::HEPEUP::MOTHUP, lhef::HEPEUP::NUP, lhef::HEPEUP::PUP, gen::PdfInfo::scalePDF, lhef::HEPEUP::SCALUP, lhef::HEPEUP::SPINUP, lhef::HEPEUP::VTIMUP, gen::PdfInfo::x, gen::PdfInfo::xPDF, and lhef::HEPEUP::XWGTUP.

Referenced by ~LHAupLesHouches().

{
  if (!event) return false;
    
  if ( event->getReadAttempts() > 0 ) return false; // record already tried
    
  const lhef::HEPEUP &hepeup = *event->getHEPEUP();
    
  if ( !hepeup.NUP ) return false;  

  setProcess(hepeup.IDPRUP, hepeup.XWGTUP, hepeup.SCALUP,
             hepeup.AQEDUP, hepeup.AQCDUP);

  const std::vector<float> &scales = event->scales();
    
  unsigned int iscale = 0;
  for(int i = 0; i < hepeup.NUP; i++) {
    //retrieve scale corresponding to each particle
    double scalein = -1.;
    
    //handle clustering scales if present,
    //applies to outgoing partons only
    if (setScalesFromLHEF_ && !scales.empty() && hepeup.ISTUP[i]==1) {
      if (iscale>=scales.size()) {
        edm::LogError("InvalidLHEInput") << "Pythia8 requires"
                                    << "cluster scales for all outgoing partons or for none" 
                                    << std::endl;
      }
      scalein = scales[iscale];
      ++iscale;
    }
        
    addParticle(hepeup.IDUP[i], hepeup.ISTUP[i],
                hepeup.MOTHUP[i].first, hepeup.MOTHUP[i].second,
                hepeup.ICOLUP[i].first, hepeup.ICOLUP[i].second,
                hepeup.PUP[i][0], hepeup.PUP[i][1],
                hepeup.PUP[i][2], hepeup.PUP[i][3],
                hepeup.PUP[i][4], hepeup.VTIMUP[i],
                hepeup.SPINUP[i],scalein);
  }
  
  if(!infoPtr->eventAttributes) {
    fEvAttributes->clear();
    infoPtr->eventAttributes = fEvAttributes;
  } else {
    infoPtr->eventAttributes->clear();
  }

  //fill parton multiplicities if available
  int npLO = event->npLO();
  int npNLO = event->npNLO();

  //default value of -99 indicates tags were not present in the original LHE file
  //don't pass to pythia in this case to emulate pythia internal lhe reader behaviour
  if (npLO!=-99) {
    char buffer [100];
    snprintf( buffer, 100, "%i",npLO);    
    (*infoPtr->eventAttributes)["npLO"] = buffer;
  }
  if (npNLO!=-99) {
    char buffer [100];
    snprintf( buffer, 100, "%i",npNLO);    
    (*infoPtr->eventAttributes)["npNLO"] = buffer;
  }
  
  //add #rwgt info from comments 
  const std::vector<std::string> &comments = event->getComments(); 
  for (unsigned i=0; i<comments.size(); i++){
    if (comments[i].rfind("#rwgt", 0)==0)
      (*infoPtr->eventAttributes)["#rwgt"] = comments[i]; 
  }
  
  const lhef::LHEEvent::PDF *pdf = event->getPDF();
  if (pdf) {
    this->setPdf(pdf->id.first, pdf->id.second,
                 pdf->x.first, pdf->x.second,
                 pdf->scalePDF,
                 pdf->xPDF.first, pdf->xPDF.second, true);
  }
  else {
    this->setPdf(hepeup.IDUP[0], hepeup.IDUP[1],
                 hepeup.PUP[0][3] / runInfo->getHEPRUP()->EBMUP.first,
                 hepeup.PUP[1][3] / runInfo->getHEPRUP()->EBMUP.second,
                 0., 0., 0., false);
  }

  event->attempted();

  return true;
}

bool LHAupLesHouches::setInit ( )

overrideprivate

Definition at line 16 of file LHAupLesHouches.cc.

References lhef::HEPRUP::EBMUP, mps_fire::i, lhef::HEPRUP::IDBMUP, lhef::HEPRUP::IDWTUP, lhef::HEPRUP::LPRUP, lhef::HEPRUP::NPRUP, lhef::HEPRUP::PDFGUP, lhef::HEPRUP::PDFSUP, AlCaHLTBitMon_QueryRunRegistry::string, lhef::HEPRUP::XERRUP, lhef::HEPRUP::XMAXUP, and lhef::HEPRUP::XSECUP.

Referenced by ~LHAupLesHouches().

{
  if (!runInfo) return false;
  const lhef::HEPRUP &heprup = *runInfo->getHEPRUP();

  setBeamA(heprup.IDBMUP.first, heprup.EBMUP.first,
           heprup.PDFGUP.first, heprup.PDFSUP.first);
  setBeamB(heprup.IDBMUP.second, heprup.EBMUP.second,
           heprup.PDFGUP.second, heprup.PDFSUP.second);
  setStrategy(heprup.IDWTUP);

  for(int i = 0; i < heprup.NPRUP; i++)
    addProcess(heprup.LPRUP[i], heprup.XSECUP[i],
           heprup.XERRUP[i], heprup.XMAXUP[i]);

  //hadronisation->onInit().emit();

  //runInfo.reset();
    
  //fill SLHA header information if available
  std::vector<std::string> slha = runInfo->findHeader("slha");
  if (!slha.empty()) {
    std::string slhaheader;
    for(std::vector<std::string>::const_iterator iter = slha.begin(); iter != slha.end(); ++iter) {
      slhaheader.append(*iter);
    }
    infoPtr->setHeader("slha",slhaheader);
  }  
  
  //will be used to work around missing initialization inside pythia8
  if(!fEvAttributes) {
    fEvAttributes = new std::map<std::string, std::string >;
  } else {
    fEvAttributes->clear();
  }

  return true;
}

void LHAupLesHouches::setScalesFromLHEF ( bool  b )

inline

Definition at line 34 of file LHAupLesHouches.h.

References b, and setScalesFromLHEF_.

{ setScalesFromLHEF_ = b; }

Member Data Documentation

lhef::LHEEvent* LHAupLesHouches::event

private

Definition at line 46 of file LHAupLesHouches.h.

Referenced by Types.EventID::cppID(), loadEvent(), looper.Looper::process(), and core.AutoHandle.AutoHandle::product().

std::map<std::string, std::string>* LHAupLesHouches::fEvAttributes

private

Definition at line 51 of file LHAupLesHouches.h.

Referenced by ~LHAupLesHouches().

lhef::LHERunInfo* LHAupLesHouches::runInfo

private

Definition at line 44 of file LHAupLesHouches.h.

Referenced by loadRunInfo().

bool LHAupLesHouches::setScalesFromLHEF_

private

Definition at line 49 of file LHAupLesHouches.h.

Referenced by setScalesFromLHEF().