Rhopi Class Reference

#include <Rhopi.h>

Inheritance diagram for Rhopi:

Public Member Functions
	Rhopi (const std::string &name, ISvcLocator *pSvcLocator)
StatusCode	initialize ()
StatusCode	execute ()
StatusCode	finalize ()

Detailed Description

Definition at line 7 of file Rhopi.h.

Constructor & Destructor Documentation

Rhopi()

Rhopi::Rhopi	(	const std::string &	name,
		ISvcLocator *	pSvcLocator )

Definition at line 54 of file Rhopi.cxx.

    : Algorithm( name, pSvcLocator ) {
 
  // Declare the properties
  declareProperty( "Vr0cut", m_vr0cut = 1.0 );
  declareProperty( "Vz0cut", m_vz0cut = 5.0 );
  declareProperty( "EnergyThreshold", m_energyThreshold = 0.05 );
  declareProperty( "GammaPhiCut", m_gammaPhiCut = 20.0 );
  declareProperty( "GammaThetaCut", m_gammaThetaCut = 20.0 );
  declareProperty( "GammaAngleCut", m_gammaAngleCut = 10.0 );
  declareProperty( "Test4C", m_test4C = 1 );
  declareProperty( "Test5C", m_test5C = 1 );
  declareProperty( "CheckDedx", m_checkDedx = 1 );
  declareProperty( "CheckTof", m_checkTof = 1 );
}

Referenced by Rhopi().

Member Function Documentation

execute()

StatusCode Rhopi::execute

(

)

Definition at line 338 of file Rhopi.cxx.

                          {
 
  // std::cout << "execute()" << std::endl;
 
  MsgStream log( msgSvc(), name() );
  log << MSG::INFO << "in execute()" << endmsg;
 
  SmartDataPtr<Event::EventHeader> eventHeader( eventSvc(), "/Event/EventHeader" );
  int                              runNo = eventHeader->runNumber();
  int                              event = eventHeader->eventNumber();
  log << MSG::DEBUG << "run, evtnum = " << runNo << " , " << event << endmsg;
  cout << "event " << event << endl;
  Ncut0++;
 
  SmartDataPtr<EvtRecEvent> evtRecEvent( eventSvc(), EventModel::EvtRec::EvtRecEvent );
  //  log << MSG::INFO << "get event tag OK" << endmsg;
  log << MSG::DEBUG << "ncharg, nneu, tottks = " << evtRecEvent->totalCharged() << " , "
      << evtRecEvent->totalNeutral() << " , " << evtRecEvent->totalTracks() << endmsg;
 
  SmartDataPtr<EvtRecTrackCol> evtRecTrkCol( eventSvc(), EventModel::EvtRec::EvtRecTrackCol );
  //
  // check x0, y0, z0, r0
  // suggest cut: |z0|<5 && r0<1
  //
  Vint iGood, ipip, ipim;
  iGood.clear();
  ipip.clear();
  ipim.clear();
  Vp4 ppip, ppim;
  ppip.clear();
  ppim.clear();
 
  int nCharge = 0;
 
  Hep3Vector xorigin( 0, 0, 0 );
 
  /*VertexDbSvc*  vtxsvc;
  Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc);
  if(vtxsvc->isVertexValid()){
  double* dbv = vtxsvc->PrimaryVertex();
  double*  vv = vtxsvc->SigmaPrimaryVertex();
    xorigin.setX(dbv[0]);
    xorigin.setY(dbv[1]);
    xorigin.setZ(dbv[2]);
  }*/
  SmartIF<IVertexDbSvc> m_vtxSvc;
  m_vtxSvc = serviceLocator()->service( "VertexDbSvc" );
  if ( m_vtxSvc->isVertexValid() )
  {
    // if(m_vtxSvc){
    double* dbv = m_vtxSvc->PrimaryVertex();
    double* vv  = m_vtxSvc->SigmaPrimaryVertex();
    xorigin.setX( dbv[0] );
    xorigin.setY( dbv[1] );
    xorigin.setZ( dbv[2] );
  }
 
  for ( int i = 0; i < evtRecEvent->totalCharged(); i++ )
  {
    EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + i;
    if ( !( *itTrk )->isMdcTrackValid() ) continue;
    RecMdcTrack* mdcTrk = ( *itTrk )->mdcTrack();
    double       pch    = mdcTrk->p();
    double       x0     = mdcTrk->x();
    double       y0     = mdcTrk->y();
    double       z0     = mdcTrk->z();
    double       theta0 = mdcTrk->theta();
    double       phi0   = mdcTrk->helix( 1 );
    double       xv     = xorigin.x();
    double       yv     = xorigin.y();
    double       Rxy    = ( x0 - xv ) * cos( phi0 ) + ( y0 - yv ) * sin( phi0 );
    m_vx0               = x0;
    m_vy0               = y0;
    m_vz0               = z0;
    m_vr0               = Rxy;
 
    HepVector    a  = mdcTrk->helix();
    HepSymMatrix Ea = mdcTrk->err();
    HepPoint3D   point0( 0., 0., 0. ); // the initial point for MDC recosntruction
    HepPoint3D   IP( xorigin[0], xorigin[1], xorigin[2] );
    VFHelix      helixip( point0, a, Ea );
    helixip.pivot( IP );
    HepVector vecipa = helixip.a();
    double    Rvxy0  = fabs( vecipa[0] ); // the nearest distance to IP in xy plane
    double    Rvz0   = vecipa[3];         // the nearest distance to IP in z direction
    double    Rvphi0 = vecipa[1];
    m_rvxy0          = Rvxy0;
    m_rvz0           = Rvz0;
    m_rvphi0         = Rvphi0;
 
    m_tuple1->write();
    //    if(fabs(z0) >= m_vz0cut) continue;
    //    if(fabs(Rxy) >= m_vr0cut) continue;
 
    if ( fabs( Rvz0 ) >= 10.0 ) continue;
    if ( fabs( Rvxy0 ) >= 1.0 ) continue;
    if ( fabs( cos( theta0 ) ) >= 0.93 ) continue;
 
    iGood.push_back( i );
    nCharge += mdcTrk->charge();
  }
 
  //
  // Finish Good Charged Track Selection
  //
  int nGood = iGood.size();
  log << MSG::DEBUG << "ngood, totcharge = " << nGood << " , " << nCharge << endmsg;
  if ( ( nGood != 2 ) || ( nCharge != 0 ) ) { return StatusCode::SUCCESS; }
  Ncut1++;
 
  Vint iGam;
  iGam.clear();
  for ( int i = evtRecEvent->totalCharged(); i < evtRecEvent->totalTracks(); i++ )
  {
    EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + i;
    if ( !( *itTrk )->isEmcShowerValid() ) continue;
    RecEmcShower* emcTrk = ( *itTrk )->emcShower();
    Hep3Vector    emcpos( emcTrk->x(), emcTrk->y(), emcTrk->z() );
    // find the nearest charged track
    double dthe = 200.;
    double dphi = 200.;
    double dang = 200.;
    for ( int j = 0; j < evtRecEvent->totalCharged(); j++ )
    {
      EvtRecTrackIterator jtTrk = evtRecTrkCol->begin() + j;
      if ( !( *jtTrk )->isExtTrackValid() ) continue;
      RecExtTrack* extTrk = ( *jtTrk )->extTrack();
      if ( extTrk->emcVolumeNumber() == -1 ) continue;
      Hep3Vector extpos = extTrk->emcPosition();
      //      double ctht = extpos.cosTheta(emcpos);
      double angd = extpos.angle( emcpos );
      double thed = extpos.theta() - emcpos.theta();
      double phid = extpos.deltaPhi( emcpos );
      thed        = fmod( thed + CLHEP::twopi + CLHEP::twopi + pi, CLHEP::twopi ) - CLHEP::pi;
      phid        = fmod( phid + CLHEP::twopi + CLHEP::twopi + pi, CLHEP::twopi ) - CLHEP::pi;
      if ( angd < dang )
      {
        dang = angd;
        dthe = thed;
        dphi = phid;
      }
    }
    if ( dang >= 200 ) continue;
    double eraw   = emcTrk->energy();
    double theta1 = emcTrk->theta();
    double time   = emcTrk->time();
    dthe          = dthe * 180 / ( CLHEP::pi );
    dphi          = dphi * 180 / ( CLHEP::pi );
    dang          = dang * 180 / ( CLHEP::pi );
    m_dthe        = dthe;
    m_dphi        = dphi;
    m_dang        = dang;
    m_eraw        = eraw;
    m_tuple2->write();
 
    if ( fabs( cos( theta1 ) ) < 0.80 )
    {
      if ( eraw <= ( m_energyThreshold / 2 ) ) continue;
    }
    else if ( fabs( cos( theta1 ) ) > 0.86 && fabs( cos( theta1 ) ) < 0.92 )
    {
      if ( eraw <= m_energyThreshold ) continue;
    }
    else continue;
 
    //    if((fabs(dthe) < m_gammaThetaCut) && (fabs(dphi)<m_gammaPhiCut) ) continue;
    if ( fabs( dang ) < m_gammaAngleCut ) continue;
 
    if ( time < 0 || time > 14 ) continue;
 
    //
    // good photon cut will be set here
    //
    iGam.push_back( i );
  }
 
  //
  // Finish Good Photon Selection
  //
  int nGam = iGam.size();
 
  log << MSG::DEBUG << "num Good Photon " << nGam << " , " << evtRecEvent->totalNeutral()
      << endmsg;
  if ( nGam < 2 ) { return StatusCode::SUCCESS; }
  Ncut2++;
 
  //
  //
  // check dedx infomation
  //
  //
 
  if ( m_checkDedx == 1 )
  {
    for ( int i = 0; i < nGood; i++ )
    {
      EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + iGood[i];
      if ( !( *itTrk )->isMdcTrackValid() ) continue;
      if ( !( *itTrk )->isMdcDedxValid() ) continue;
      RecMdcTrack* mdcTrk  = ( *itTrk )->mdcTrack();
      RecMdcDedx*  dedxTrk = ( *itTrk )->mdcDedx();
      m_ptrk               = mdcTrk->p();
 
      m_chie   = dedxTrk->chiE();
      m_chimu  = dedxTrk->chiMu();
      m_chipi  = dedxTrk->chiPi();
      m_chik   = dedxTrk->chiK();
      m_chip   = dedxTrk->chiP();
      m_ghit   = dedxTrk->numGoodHits();
      m_thit   = dedxTrk->numTotalHits();
      m_probPH = dedxTrk->probPH();
      m_normPH = dedxTrk->normPH();
      m_tuple7->write();
    }
  }
 
  //
  // check TOF infomation
  //
 
  if ( m_checkTof == 1 )
  {
    for ( int i = 0; i < nGood; i++ )
    {
      EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + iGood[i];
      if ( !( *itTrk )->isMdcTrackValid() ) continue;
      if ( !( *itTrk )->isTofTrackValid() ) continue;
 
      RecMdcTrack*                mdcTrk    = ( *itTrk )->mdcTrack();
      SmartRefVector<RecTofTrack> tofTrkCol = ( *itTrk )->tofTrack();
 
      double ptrk = mdcTrk->p();
 
      SmartRefVector<RecTofTrack>::iterator iter_tof = tofTrkCol.begin();
      for ( ; iter_tof != tofTrkCol.end(); iter_tof++ )
      {
        TofHitStatus* status = new TofHitStatus;
        status->setStatus( ( *iter_tof )->status() );
        if ( !( status->is_barrel() ) )
        {                                            // endcap
          if ( !( status->is_counter() ) ) continue; // ?
          if ( status->layer() != 0 ) continue;      // layer1
          double path = ( *iter_tof )->path();       // ?
          double tof  = ( *iter_tof )->tof();
          double ph   = ( *iter_tof )->ph();
          double rhit = ( *iter_tof )->zrhit();
          double qual = 0.0 + ( *iter_tof )->quality();
          double cntr = 0.0 + ( *iter_tof )->tofID();
          double texp[5];
          for ( int j = 0; j < 5; j++ )
          {
            double gb   = ptrk / xmass[j];
            double beta = gb / sqrt( 1 + gb * gb );
            texp[j]     = 10 * path / beta / velc;
          }
          m_cntr_etof = cntr;
          m_ptot_etof = ptrk;
          m_ph_etof   = ph;
          m_rhit_etof = rhit;
          m_qual_etof = qual;
          m_te_etof   = tof - texp[0];
          m_tmu_etof  = tof - texp[1];
          m_tpi_etof  = tof - texp[2];
          m_tk_etof   = tof - texp[3];
          m_tp_etof   = tof - texp[4];
          m_tuple8->write();
        }
        else
        {                                            // barrel
          if ( !( status->is_counter() ) ) continue; // ?
          if ( status->layer() == 1 )
          {                                      // layer1
            double path = ( *iter_tof )->path(); // ?
            double tof  = ( *iter_tof )->tof();
            double ph   = ( *iter_tof )->ph();
            double rhit = ( *iter_tof )->zrhit();
            double qual = 0.0 + ( *iter_tof )->quality();
            double cntr = 0.0 + ( *iter_tof )->tofID();
            double texp[5];
            for ( int j = 0; j < 5; j++ )
            {
              double gb   = ptrk / xmass[j];
              double beta = gb / sqrt( 1 + gb * gb );
              texp[j]     = 10 * path / beta / velc;
            }
 
            m_cntr_btof1 = cntr;
            m_ptot_btof1 = ptrk;
            m_ph_btof1   = ph;
            m_zhit_btof1 = rhit;
            m_qual_btof1 = qual;
            m_te_btof1   = tof - texp[0];
            m_tmu_btof1  = tof - texp[1];
            m_tpi_btof1  = tof - texp[2];
            m_tk_btof1   = tof - texp[3];
            m_tp_btof1   = tof - texp[4];
            m_tuple9->write();
          }
 
          if ( status->layer() == 2 )
          {                                      // layer2
            double path = ( *iter_tof )->path(); // ?
            double tof  = ( *iter_tof )->tof();
            double ph   = ( *iter_tof )->ph();
            double rhit = ( *iter_tof )->zrhit();
            double qual = 0.0 + ( *iter_tof )->quality();
            double cntr = 0.0 + ( *iter_tof )->tofID();
            double texp[5];
            for ( int j = 0; j < 5; j++ )
            {
              double gb   = ptrk / xmass[j];
              double beta = gb / sqrt( 1 + gb * gb );
              texp[j]     = 10 * path / beta / velc;
            }
 
            m_cntr_btof2 = cntr;
            m_ptot_btof2 = ptrk;
            m_ph_btof2   = ph;
            m_zhit_btof2 = rhit;
            m_qual_btof2 = qual;
            m_te_btof2   = tof - texp[0];
            m_tmu_btof2  = tof - texp[1];
            m_tpi_btof2  = tof - texp[2];
            m_tk_btof2   = tof - texp[3];
            m_tp_btof2   = tof - texp[4];
            m_tuple10->write();
          }
        }
 
        delete status;
      }
    } // loop all charged track
  } // check tof
 
  //
  // Assign 4-momentum to each photon
  //
 
  Vp4 pGam;
  pGam.clear();
  for ( int i = 0; i < nGam; i++ )
  {
    EvtRecTrackIterator itTrk  = evtRecTrkCol->begin() + iGam[i];
    RecEmcShower*       emcTrk = ( *itTrk )->emcShower();
    double              eraw   = emcTrk->energy();
    double              phi    = emcTrk->phi();
    double              the    = emcTrk->theta();
    HepLorentzVector    ptrk;
    ptrk.setPx( eraw * sin( the ) * cos( phi ) );
    ptrk.setPy( eraw * sin( the ) * sin( phi ) );
    ptrk.setPz( eraw * cos( the ) );
    ptrk.setE( eraw );
 
    //    ptrk = ptrk.boost(-0.011,0,0);// boost to cms
 
    pGam.push_back( ptrk );
  }
  // cout<<"before pid"<<endl;
  //
  //  Assign 4-momentum to each charged track
  //
  ParticleID* pid = ParticleID::instance();
  for ( int i = 0; i < nGood; i++ )
  {
    EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + iGood[i];
    //    if(pid) delete pid;
    pid->init();
    pid->setMethod( pid->methodProbability() );
    //    pid->setMethod(pid->methodLikelihood());  //for Likelihood Method
 
    pid->setChiMinCut( 4 );
    pid->setRecTrack( *itTrk );
    //    pid->usePidSys(pid->useDedx() | pid->useTof1() | pid->useTof2() | pid->useTofE()); //
    //    for BOSS version < 7.0.0
    pid->usePidSys( pid->useDedx() | pid->useTofCorr() ); // use PID sub-system
    pid->identify( pid->onlyPionKaonProton() );           // seperater Pion/Kaon/Proton
    //    pid->identify(pid->onlyPion());
    //  pid->identify(pid->onlyKaon());
    pid->calculate();
    if ( !( pid->IsPidInfoValid() ) ) continue;
    RecMdcTrack* mdcTrk = ( *itTrk )->mdcTrack();
    m_ptrk_pid          = mdcTrk->p();
    m_cost_pid          = cos( mdcTrk->theta() );
    m_dedx_pid          = pid->chiDedx( 2 );
    m_tof1_pid          = pid->chiTof1( 2 );
    m_tof2_pid          = pid->chiTof2( 2 );
    m_prob_pid          = pid->probPion();
    m_tuple11->write();
 
    if ( ( pid->probPion() < pid->probProton() ) || ( pid->probPion() < pid->probKaon() ) )
      continue;
    //    if(pid->probPion() < 0.001) continue;
    //    if(pid->pdf(2)<pid->pdf(3)) continue; //  for Likelihood Method(0=electron 1=muon
    //    2=pion 3=kaon 4=proton)
 
    RecMdcKalTrack* mdcKalTrk =
        ( *itTrk )->mdcKalTrack(); // After ParticleID, use RecMdcKalTrack substitute
                                   // RecMdcTrack
    RecMdcKalTrack::setPidType( RecMdcKalTrack::pion ); // PID can set to electron, muon, pion,
                                                        // kaon and proton;The default setting
                                                        // is pion
 
    if ( mdcKalTrk->charge() > 0 )
    {
      ipip.push_back( iGood[i] );
      HepLorentzVector ptrk;
      ptrk.setPx( mdcKalTrk->px() );
      ptrk.setPy( mdcKalTrk->py() );
      ptrk.setPz( mdcKalTrk->pz() );
      double p3 = ptrk.mag();
      ptrk.setE( sqrt( p3 * p3 + mpi * mpi ) );
 
      //      ptrk = ptrk.boost(-0.011,0,0);//boost to cms
 
      ppip.push_back( ptrk );
    }
    else
    {
      ipim.push_back( iGood[i] );
      HepLorentzVector ptrk;
      ptrk.setPx( mdcKalTrk->px() );
      ptrk.setPy( mdcKalTrk->py() );
      ptrk.setPz( mdcKalTrk->pz() );
      double p3 = ptrk.mag();
      ptrk.setE( sqrt( p3 * p3 + mpi * mpi ) );
 
      //      ptrk = ptrk.boost(-0.011,0,0);//boost to cms
 
      ppim.push_back( ptrk );
    }
  }
 
  /*
    for(int i = 0; i < nGood; i++) {//for rhopi without PID
      EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + iGood[i];
      RecMdcTrack* mdcTrk = (*itTrk)->mdcTrack();
      if(mdcTrk->charge() >0) {
        ipip.push_back(iGood[i]);
        HepLorentzVector ptrk;
        ptrk.setPx(mdcTrk->px());
        ptrk.setPy(mdcTrk->py());
        ptrk.setPz(mdcTrk->pz());
        double p3 = ptrk.mag();
        ptrk.setE(sqrt(p3*p3+mpi*mpi));
        ppip.push_back(ptrk);
      } else {
        ipim.push_back(iGood[i]);
        HepLorentzVector ptrk;
        ptrk.setPx(mdcTrk->px());
        ptrk.setPy(mdcTrk->py());
        ptrk.setPz(mdcTrk->pz());
        double p3 = ptrk.mag();
        ptrk.setE(sqrt(p3*p3+mpi*mpi));
        ppim.push_back(ptrk);
      }
    }// without PID
  */
 
  int npip = ipip.size();
  int npim = ipim.size();
  if ( npip * npim != 1 ) return StatusCode::SUCCESS;
 
  Ncut3++;
 
  //
  // Loop each gamma pair, check ppi0 and pTot
  //
 
  HepLorentzVector pTot;
  for ( int i = 0; i < nGam - 1; i++ )
  {
    for ( int j = i + 1; j < nGam; j++ )
    {
      HepLorentzVector p2g = pGam[i] + pGam[j];
      pTot                 = ppip[0] + ppim[0];
      pTot += p2g;
      m_m2gg = p2g.m();
      m_etot = pTot.e();
      m_tuple3->write();
    }
  }
 
  RecMdcKalTrack* pipTrk = ( *( evtRecTrkCol->begin() + ipip[0] ) )->mdcKalTrack();
  RecMdcKalTrack* pimTrk = ( *( evtRecTrkCol->begin() + ipim[0] ) )->mdcKalTrack();
 
  WTrackParameter wvpipTrk, wvpimTrk;
  wvpipTrk = WTrackParameter( mpi, pipTrk->getZHelix(), pipTrk->getZError() );
  wvpimTrk = WTrackParameter( mpi, pimTrk->getZHelix(), pimTrk->getZError() );
 
  /* Default is pion, for other particles:
    wvppTrk = WTrackParameter(mp, pipTrk->getZHelixP(), pipTrk->getZErrorP());//proton
    wvmupTrk = WTrackParameter(mmu, pipTrk->getZHelixMu(), pipTrk->getZErrorMu());//muon
    wvepTrk = WTrackParameter(me, pipTrk->getZHelixE(), pipTrk->getZErrorE());//electron
    wvkpTrk = WTrackParameter(mk, pipTrk->getZHelixK(), pipTrk->getZErrorK());//kaon
  */
  //
  //    Test vertex fit
  //
 
  HepPoint3D   vx( 0., 0., 0. );
  HepSymMatrix Evx( 3, 0 );
  double       bx = 1E+6;
  double       by = 1E+6;
  double       bz = 1E+6;
  Evx[0][0]       = bx * bx;
  Evx[1][1]       = by * by;
  Evx[2][2]       = bz * bz;
 
  VertexParameter vxpar;
  vxpar.setVx( vx );
  vxpar.setEvx( Evx );
 
  VertexFit* vtxfit = VertexFit::instance();
  vtxfit->init();
  vtxfit->AddTrack( 0, wvpipTrk );
  vtxfit->AddTrack( 1, wvpimTrk );
  vtxfit->AddVertex( 0, vxpar, 0, 1 );
  if ( !vtxfit->Fit( 0 ) ) return StatusCode::SUCCESS;
  vtxfit->Swim( 0 );
 
  WTrackParameter wpip = vtxfit->wtrk( 0 );
  WTrackParameter wpim = vtxfit->wtrk( 1 );
 
  // KinematicFit * kmfit = KinematicFit::instance();
  KalmanKinematicFit* kmfit = KalmanKinematicFit::instance();
 
  //
  //  Apply Kinematic 4C fit
  //
  // cout<<"before 4c"<<endl;
  if ( m_test4C == 1 )
  {
    //    double ecms = 3.097;
    HepLorentzVector ecms( 0.034, 0, 0, 3.097 );
 
    double chisq = 9999.;
    int    ig1   = -1;
    int    ig2   = -1;
    for ( int i = 0; i < nGam - 1; i++ )
    {
      RecEmcShower* g1Trk = ( *( evtRecTrkCol->begin() + iGam[i] ) )->emcShower();
      for ( int j = i + 1; j < nGam; j++ )
      {
        RecEmcShower* g2Trk = ( *( evtRecTrkCol->begin() + iGam[j] ) )->emcShower();
        kmfit->init();
        kmfit->AddTrack( 0, wpip );
        kmfit->AddTrack( 1, wpim );
        kmfit->AddTrack( 2, 0.0, g1Trk );
        kmfit->AddTrack( 3, 0.0, g2Trk );
        kmfit->AddFourMomentum( 0, ecms );
        bool oksq = kmfit->Fit();
        if ( oksq )
        {
          double chi2 = kmfit->chisq();
          if ( chi2 < chisq )
          {
            chisq = chi2;
            ig1   = iGam[i];
            ig2   = iGam[j];
          }
        }
      }
    }
 
    if ( chisq < 200 )
    {
 
      RecEmcShower* g1Trk = ( *( evtRecTrkCol->begin() + ig1 ) )->emcShower();
      RecEmcShower* g2Trk = ( *( evtRecTrkCol->begin() + ig2 ) )->emcShower();
      kmfit->init();
      kmfit->AddTrack( 0, wpip );
      kmfit->AddTrack( 1, wpim );
      kmfit->AddTrack( 2, 0.0, g1Trk );
      kmfit->AddTrack( 3, 0.0, g2Trk );
      kmfit->AddFourMomentum( 0, ecms );
      bool oksq = kmfit->Fit();
      if ( oksq )
      {
        HepLorentzVector ppi0 = kmfit->pfit( 2 ) + kmfit->pfit( 3 );
        m_mpi0                = ppi0.m();
        m_chi1                = kmfit->chisq();
        m_tuple4->write();
        Ncut4++;
      }
    }
  }
 
  //
  //  Apply Kinematic 5C Fit
  //
 
  // find the best combination over all possible pi+ pi- gamma gamma pair
  if ( m_test5C == 1 )
  {
    //    double ecms = 3.097;
    HepLorentzVector ecms( 0.034, 0, 0, 3.097 );
    double           chisq = 9999.;
    int              ig1   = -1;
    int              ig2   = -1;
    for ( int i = 0; i < nGam - 1; i++ )
    {
      RecEmcShower* g1Trk = ( *( evtRecTrkCol->begin() + iGam[i] ) )->emcShower();
      for ( int j = i + 1; j < nGam; j++ )
      {
        RecEmcShower* g2Trk = ( *( evtRecTrkCol->begin() + iGam[j] ) )->emcShower();
        kmfit->init();
        kmfit->AddTrack( 0, wpip );
        kmfit->AddTrack( 1, wpim );
        kmfit->AddTrack( 2, 0.0, g1Trk );
        kmfit->AddTrack( 3, 0.0, g2Trk );
        kmfit->AddResonance( 0, 0.135, 2, 3 );
        kmfit->AddFourMomentum( 1, ecms );
        if ( !kmfit->Fit( 0 ) ) continue;
        if ( !kmfit->Fit( 1 ) ) continue;
        bool oksq = kmfit->Fit();
        if ( oksq )
        {
          double chi2 = kmfit->chisq();
          if ( chi2 < chisq )
          {
            chisq = chi2;
            ig1   = iGam[i];
            ig2   = iGam[j];
          }
        }
      }
    }
 
    log << MSG::INFO << " chisq = " << chisq << endmsg;
 
    if ( chisq < 200 )
    {
      RecEmcShower* g1Trk = ( *( evtRecTrkCol->begin() + ig1 ) )->emcShower();
      RecEmcShower* g2Trk = ( *( evtRecTrkCol->begin() + ig2 ) )->emcShower();
 
      kmfit->init();
      kmfit->AddTrack( 0, wpip );
      kmfit->AddTrack( 1, wpim );
      kmfit->AddTrack( 2, 0.0, g1Trk );
      kmfit->AddTrack( 3, 0.0, g2Trk );
      kmfit->AddResonance( 0, 0.135, 2, 3 );
      kmfit->AddFourMomentum( 1, ecms );
      bool oksq = kmfit->Fit();
      if ( oksq )
      {
        HepLorentzVector ppi0  = kmfit->pfit( 2 ) + kmfit->pfit( 3 );
        HepLorentzVector prho0 = kmfit->pfit( 0 ) + kmfit->pfit( 1 );
        HepLorentzVector prhop = ppi0 + kmfit->pfit( 0 );
        HepLorentzVector prhom = ppi0 + kmfit->pfit( 1 );
 
        m_chi2      = kmfit->chisq();
        m_mrh0      = prho0.m();
        m_mrhp      = prhop.m();
        m_mrhm      = prhom.m();
        double eg1  = ( kmfit->pfit( 2 ) ).e();
        double eg2  = ( kmfit->pfit( 3 ) ).e();
        double fcos = abs( eg1 - eg2 ) / ppi0.rho();
        m_tuple5->write();
        Ncut5++;
        //
        //  Measure the photon detection efficiences via
        //          J/psi -> rho0 pi0
        //
        if ( fabs( prho0.m() - 0.770 ) < 0.150 )
        {
          if ( fabs( fcos ) < 0.99 )
          {
            m_fcos = ( eg1 - eg2 ) / ppi0.rho();
            m_elow = ( eg1 < eg2 ) ? eg1 : eg2;
            m_tuple6->write();
            Ncut6++;
          }
        } // rho0 cut
      } // oksq
    }
  }
  return StatusCode::SUCCESS;
}

finalize()

StatusCode Rhopi::finalize

(

)

Definition at line 1018 of file Rhopi.cxx.

                           {
  cout << "total number:         " << Ncut0 << endl;
  cout << "nGood==2, nCharge==0: " << Ncut1 << endl;
  cout << "nGam>=2:              " << Ncut2 << endl;
  cout << "Pass Pid:             " << Ncut3 << endl;
  cout << "Pass 4C:              " << Ncut4 << endl;
  cout << "Pass 5C:              " << Ncut5 << endl;
  cout << "J/psi->rho0 pi0:      " << Ncut6 << endl;
  MsgStream log( msgSvc(), name() );
  log << MSG::INFO << "in finalize()" << endmsg;
  return StatusCode::SUCCESS;
}

initialize()

StatusCode Rhopi::initialize

(

)

Definition at line 71 of file Rhopi.cxx.

                             {
  MsgStream log( msgSvc(), name() );
 
  log << MSG::INFO << "in initialize()" << endmsg;
 
  StatusCode status;
  NTuplePtr  nt1( ntupleSvc(), "FILE1/vxyz" );
  if ( nt1 ) m_tuple1 = nt1;
  else
  {
    m_tuple1 = ntupleSvc()->book( "FILE1/vxyz", CLID_ColumnWiseTuple, "ks N-Tuple example" );
    if ( m_tuple1 )
    {
      status = m_tuple1->addItem( "vx0", m_vx0 );
      status = m_tuple1->addItem( "vy0", m_vy0 );
      status = m_tuple1->addItem( "vz0", m_vz0 );
      status = m_tuple1->addItem( "vr0", m_vr0 );
      status = m_tuple1->addItem( "rvxy0", m_rvxy0 );
      status = m_tuple1->addItem( "rvz0", m_rvz0 );
      status = m_tuple1->addItem( "rvphi0", m_rvphi0 );
    }
    else
    {
      log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple1 ) << endmsg;
      return StatusCode::FAILURE;
    }
  }
 
  NTuplePtr nt2( ntupleSvc(), "FILE1/photon" );
  if ( nt2 ) m_tuple2 = nt2;
  else
  {
    m_tuple2 = ntupleSvc()->book( "FILE1/photon", CLID_ColumnWiseTuple, "ks N-Tuple example" );
    if ( m_tuple2 )
    {
      status = m_tuple2->addItem( "dthe", m_dthe );
      status = m_tuple2->addItem( "dphi", m_dphi );
      status = m_tuple2->addItem( "dang", m_dang );
      status = m_tuple2->addItem( "eraw", m_eraw );
    }
    else
    {
      log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple2 ) << endmsg;
      return StatusCode::FAILURE;
    }
  }
 
  NTuplePtr nt3( ntupleSvc(), "FILE1/etot" );
  if ( nt3 ) m_tuple3 = nt3;
  else
  {
    m_tuple3 = ntupleSvc()->book( "FILE1/etot", CLID_ColumnWiseTuple, "ks N-Tuple example" );
    if ( m_tuple3 )
    {
      status = m_tuple3->addItem( "m2gg", m_m2gg );
      status = m_tuple3->addItem( "etot", m_etot );
    }
    else
    {
      log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple3 ) << endmsg;
      return StatusCode::FAILURE;
    }
  }
  if ( m_test4C == 1 )
  {
    NTuplePtr nt4( ntupleSvc(), "FILE1/fit4c" );
    if ( nt4 ) m_tuple4 = nt4;
    else
    {
      m_tuple4 =
          ntupleSvc()->book( "FILE1/fit4c", CLID_ColumnWiseTuple, "ks N-Tuple example" );
      if ( m_tuple4 )
      {
        status = m_tuple4->addItem( "chi2", m_chi1 );
        status = m_tuple4->addItem( "mpi0", m_mpi0 );
      }
      else
      {
        log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple4 ) << endmsg;
        return StatusCode::FAILURE;
      }
    }
  } // test 4C
 
  if ( m_test5C == 1 )
  {
    NTuplePtr nt5( ntupleSvc(), "FILE1/fit5c" );
    if ( nt5 ) m_tuple5 = nt5;
    else
    {
      m_tuple5 =
          ntupleSvc()->book( "FILE1/fit5c", CLID_ColumnWiseTuple, "ks N-Tuple example" );
      if ( m_tuple5 )
      {
        status = m_tuple5->addItem( "chi2", m_chi2 );
        status = m_tuple5->addItem( "mrh0", m_mrh0 );
        status = m_tuple5->addItem( "mrhp", m_mrhp );
        status = m_tuple5->addItem( "mrhm", m_mrhm );
      }
      else
      {
        log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple5 ) << endmsg;
        return StatusCode::FAILURE;
      }
    }
 
    NTuplePtr nt6( ntupleSvc(), "FILE1/geff" );
    if ( nt6 ) m_tuple6 = nt6;
    else
    {
      m_tuple6 = ntupleSvc()->book( "FILE1/geff", CLID_ColumnWiseTuple, "ks N-Tuple example" );
      if ( m_tuple6 )
      {
        status = m_tuple6->addItem( "fcos", m_fcos );
        status = m_tuple6->addItem( "elow", m_elow );
      }
      else
      {
        log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple6 ) << endmsg;
        return StatusCode::FAILURE;
      }
    }
  } // test 5c
 
  if ( m_checkDedx == 1 )
  {
    NTuplePtr nt7( ntupleSvc(), "FILE1/dedx" );
    if ( nt7 ) m_tuple7 = nt7;
    else
    {
      m_tuple7 = ntupleSvc()->book( "FILE1/dedx", CLID_ColumnWiseTuple, "ks N-Tuple example" );
      if ( m_tuple7 )
      {
        status = m_tuple7->addItem( "ptrk", m_ptrk );
        status = m_tuple7->addItem( "chie", m_chie );
        status = m_tuple7->addItem( "chimu", m_chimu );
        status = m_tuple7->addItem( "chipi", m_chipi );
        status = m_tuple7->addItem( "chik", m_chik );
        status = m_tuple7->addItem( "chip", m_chip );
        status = m_tuple7->addItem( "probPH", m_probPH );
        status = m_tuple7->addItem( "normPH", m_normPH );
        status = m_tuple7->addItem( "ghit", m_ghit );
        status = m_tuple7->addItem( "thit", m_thit );
      }
      else
      {
        log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple7 ) << endmsg;
        return StatusCode::FAILURE;
      }
    }
  } // check dE/dx
 
  if ( m_checkTof == 1 )
  {
    NTuplePtr nt8( ntupleSvc(), "FILE1/tofe" );
    if ( nt8 ) m_tuple8 = nt8;
    else
    {
      m_tuple8 = ntupleSvc()->book( "FILE1/tofe", CLID_ColumnWiseTuple, "ks N-Tuple example" );
      if ( m_tuple8 )
      {
        status = m_tuple8->addItem( "ptrk", m_ptot_etof );
        status = m_tuple8->addItem( "cntr", m_cntr_etof );
        status = m_tuple8->addItem( "ph", m_ph_etof );
        status = m_tuple8->addItem( "rhit", m_rhit_etof );
        status = m_tuple8->addItem( "qual", m_qual_etof );
        status = m_tuple8->addItem( "te", m_te_etof );
        status = m_tuple8->addItem( "tmu", m_tmu_etof );
        status = m_tuple8->addItem( "tpi", m_tpi_etof );
        status = m_tuple8->addItem( "tk", m_tk_etof );
        status = m_tuple8->addItem( "tp", m_tp_etof );
      }
      else
      {
        log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple8 ) << endmsg;
        return StatusCode::FAILURE;
      }
    }
  } // check Tof:endcap
 
  if ( m_checkTof == 1 )
  {
    NTuplePtr nt9( ntupleSvc(), "FILE1/tof1" );
    if ( nt9 ) m_tuple9 = nt9;
    else
    {
      m_tuple9 = ntupleSvc()->book( "FILE1/tof1", CLID_ColumnWiseTuple, "ks N-Tuple example" );
      if ( m_tuple9 )
      {
        status = m_tuple9->addItem( "ptrk", m_ptot_btof1 );
        status = m_tuple9->addItem( "cntr", m_cntr_btof1 );
        status = m_tuple9->addItem( "ph", m_ph_btof1 );
        status = m_tuple9->addItem( "zhit", m_zhit_btof1 );
        status = m_tuple9->addItem( "qual", m_qual_btof1 );
        status = m_tuple9->addItem( "te", m_te_btof1 );
        status = m_tuple9->addItem( "tmu", m_tmu_btof1 );
        status = m_tuple9->addItem( "tpi", m_tpi_btof1 );
        status = m_tuple9->addItem( "tk", m_tk_btof1 );
        status = m_tuple9->addItem( "tp", m_tp_btof1 );
      }
      else
      {
        log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple9 ) << endmsg;
        return StatusCode::FAILURE;
      }
    }
  } // check Tof:barrel inner Tof
 
  if ( m_checkTof == 1 )
  {
    NTuplePtr nt10( ntupleSvc(), "FILE1/tof2" );
    if ( nt10 ) m_tuple10 = nt10;
    else
    {
      m_tuple10 =
          ntupleSvc()->book( "FILE1/tof2", CLID_ColumnWiseTuple, "ks N-Tuple example" );
      if ( m_tuple10 )
      {
        status = m_tuple10->addItem( "ptrk", m_ptot_btof2 );
        status = m_tuple10->addItem( "cntr", m_cntr_btof2 );
        status = m_tuple10->addItem( "ph", m_ph_btof2 );
        status = m_tuple10->addItem( "zhit", m_zhit_btof2 );
        status = m_tuple10->addItem( "qual", m_qual_btof2 );
        status = m_tuple10->addItem( "te", m_te_btof2 );
        status = m_tuple10->addItem( "tmu", m_tmu_btof2 );
        status = m_tuple10->addItem( "tpi", m_tpi_btof2 );
        status = m_tuple10->addItem( "tk", m_tk_btof2 );
        status = m_tuple10->addItem( "tp", m_tp_btof2 );
      }
      else
      {
        log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple10 ) << endmsg;
        return StatusCode::FAILURE;
      }
    }
  } // check Tof:barrel outter Tof
 
  NTuplePtr nt11( ntupleSvc(), "FILE1/pid" );
  if ( nt11 ) m_tuple11 = nt11;
  else
  {
    m_tuple11 = ntupleSvc()->book( "FILE1/pid", CLID_ColumnWiseTuple, "ks N-Tuple example" );
    if ( m_tuple11 )
    {
      status = m_tuple11->addItem( "ptrk", m_ptrk_pid );
      status = m_tuple11->addItem( "cost", m_cost_pid );
      status = m_tuple11->addItem( "dedx", m_dedx_pid );
      status = m_tuple11->addItem( "tof1", m_tof1_pid );
      status = m_tuple11->addItem( "tof2", m_tof2_pid );
      status = m_tuple11->addItem( "prob", m_prob_pid );
    }
    else
    {
      log << MSG::ERROR << "    Cannot book N-tuple:" << long( m_tuple11 ) << endmsg;
      return StatusCode::FAILURE;
    }
  }
 
  //
  //--------end of book--------
  //
 
  log << MSG::INFO << "successfully return from initialize()" << endmsg;
  return StatusCode::SUCCESS;
}

---

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

• Rhopi.h
• Rhopi.cxx