//=============================================================================
// Return all descendants of level i for a Particle
//=============================================================================
const LHCb::Particle::ConstVector ParticleDescendants::descendants(const LHCb::Particle* P, int maxlevel){
LHCb::Particle::ConstVector Parts ;
int level = 0 ;
bool found = false ;
LHCb::Particle::ConstVector mothers ;
do {
++level ;
LHCb::Particle::ConstVector leveldaughters ;
if ( level == 1 ) found = addDaughters( P, leveldaughters) ;
else found = addDaughters( mothers, leveldaughters) ;
if ( level==maxlevel || maxlevel == 0 ) {
Parts.insert(Parts.end(),leveldaughters.begin(),leveldaughters.end()) ;
verbose() << "Level: " << level << " - inserted " << leveldaughters.size()
<< " daughters to get " << Parts.size() << endmsg ;
}
verbose() << "Level " << level << " of " << maxlevel << " : "
<< leveldaughters.size() << " daughters " << found << endmsg ;
mothers = leveldaughters ;
} while ( (maxlevel<=0 || level<=maxlevel) && found ) ;
debug() << "Reached " << level << ". Returning " << Parts.size()
<< " daughters" << endmsg ;
return Parts ;
}
//=============================================================================
// Return all daughters of particles in a vector
//=============================================================================
bool ParticleDescendants::addDaughters(const LHCb::Particle::ConstVector& mothers,
LHCb::Particle::ConstVector& Parts){
if ( mothers.empty() ) return false ;
bool found = false ;
for ( LHCb::Particle::ConstVector::const_iterator i = mothers.begin() ; i!=mothers.end() ; ++i){
found = ( addDaughters( *i, Parts) || found );
}
return found ;
}
//=============================================================================
// Return all stable descendants of a Particle
//=============================================================================
const LHCb::Particle::ConstVector ParticleDescendants::finalStates(const LHCb::Particle* P){
LHCb::Particle::ConstVector stables ; //
LHCb::Particle::ConstVector all = descendants( P, 0 ); // get them all all
for ( LHCb::Particle::ConstVector::const_iterator i = all.begin() ; i!=all.end() ; ++i){
if ( (*i)->isBasicParticle() ) {
stables.push_back( *i );
debug() << "Saving a " << (*i)->particleID().pid() << endmsg ;
} else verbose() << "Discarding a " << (*i)->particleID().pid() << endmsg ;
}
return stables;
}
//=============================================================================
// Return all daughters of particles in a vector
//=============================================================================
bool ParticleDescendants::addDaughters(const LHCb::Particle* M,
LHCb::Particle::ConstVector& Parts){
if ( 0==M ) return false;
if ( M->isBasicParticle() ) return false;
const LHCb::Particle::ConstVector dauts = M->daughtersVector();
Parts.insert(Parts.end(),dauts.begin(),dauts.end());
verbose() << "Added " << dauts.size() << " daughters" << endmsg ;
return (!dauts.empty());
}
//=============================================================================
// Main execution
//=============================================================================
StatusCode B2DMuNu::execute() {
if (msgLevel(MSG::DEBUG)) debug() << "==> Execute" << endmsg;
StatusCode sc = StatusCode::SUCCESS;
//### Extract Run number and Event number ###//
const LHCb::ODIN* odin = get<LHCb::ODIN>(LHCb::ODINLocation::Default);
const unsigned int runNum = odin->runNumber(), evNum = odin->eventNumber();
debug() << "Run number is " << runNum << " and Event ID is " << evNum
<< " at time " << odin->eventTime() << endmsg; //odin->gpsTime() << endmsg;
counter("EventID")++;
debug() << "### Processing event number " << counter("EventID").nEntries() << " in job ###" << endmsg;
setFilterPassed(true); // Mandatory. Set to true if event is accepted.
//### Only run on MC data if requested ###//
if (m_runMC==1)
{
//### Test MC data to see if event warrants reconstruction (Require B0/B- OR B0~/B+ both decaying to muons) ###//
m_passEvent = 0;
debug() << "Performing Analysis on MC data" << endmsg;
sc = loopOnMC();
if (!sc) return sc;
}
if (m_passEvent==1)
{
debug() << "### Event number " << counter("EventID").nEntries() << " accepted for analysis buddy ###" << endmsg;
counter("EventPasses")++;
debug() << "Extracting daughters..." << endmsg;
LHCb::Particle::ConstVector daughters = this->i_particles();
if (daughters.size()!=0)
{
debug() << "### There are " << daughters.size() << " possible Muons in this event (EventID "
<< counter("EventID").nEntries() << ") ###" << endmsg;
counter("MuonsPresent")++;
//### Extract muon hits and muon misid if requested ###//
if (m_muHits) {
const std::string& strExtra = "Extra";
Extra* extra = new Extra(strExtra, m_local);
Tuple fakeTuple = nTuple("fakeMuonTuple");
sc = extra->fakeMuon(daughters, fakeTuple);
Tuple hitTuple = nTuple("muonHitTuple");
sc = extra->muonChamberHits(hitTuple);
delete extra;
if (!sc) return sc;
}
//### Test - Call loopOnRec ###//
const std::string& strRec = "Rec";
Rec* rec = new Rec(strRec, m_local);
Tuple recAllTuple=nTuple("recAllTuple"), hitDistTuple=nTuple("muHitDistTuple"), motherTuple=nTuple("motherTuple"),
candTuple=nTuple("candidateTuple");
const LHCb::RecVertex::Range prims = this->primaryVertices();
LHCb::Particle::Vector mothers =
rec->loopOnRec(daughters, prims, m_motherID, recAllTuple, hitDistTuple, motherTuple, candTuple, m_runMC);
delete rec;
if (!sc) return sc;
}
else debug() << "### There are no possible muons in the event!! ###" << endmsg;
debug() << "### Finishing analysis for Event number " << counter("EventID").nEntries() << " ###" << endmsg;
}
else
{
debug() << "Event rejected" << endmsg;
counter("EventFails")++;
}
debug() << "Event fully analysed." << endmsg;
return StatusCode::SUCCESS;
}
