Kpipi0pi0 Class Reference

#include <Kpipi0pi0.h>

List of all members.

Public Member Functions

 Kpipi0pi0 ()
 ~Kpipi0pi0 ()
bool Getkpipi0pi0md ()
double Gettagmd ()
double Getmass_bc ()
double GetCQtm ()
double GetdelE_tag ()
Vint Gettagtrk1 ()
HepLorentzVector Gettagp1 ()
Vint GettagGam1 ()
void MTotal (double event, SmartDataPtr< EvtRecTrackCol > evtRecTrkCol, Vint iGood, Vint iGam, double Ebeam, int PID_flag, int Charge_candidate_D)

Private Attributes

bool kpipi0pi0md
double tagmd
double mass_bc
double cqtm
double delE_tag
Vint iGoodtag
HepLorentzVector ptag
Vint iGamtag

Detailed Description

Definition at line 20 of file Kpipi0pi0.h.

Constructor & Destructor Documentation

Kpipi0pi0::Kpipi0pi0 (  ) 

Definition at line 29 of file Kpipi0pi0.cxx.

00030 {}

Kpipi0pi0::~Kpipi0pi0 (  ) 

Definition at line 32 of file Kpipi0pi0.cxx.

00033 {}

Member Function Documentation

double Kpipi0pi0::GetCQtm (  )  [inline]

Definition at line 30 of file Kpipi0pi0.h.

References cqtm.

Referenced by Sing::Mdset().

00030 { return cqtm; }

double Kpipi0pi0::GetdelE_tag (  )  [inline]

Definition at line 31 of file Kpipi0pi0.h.

References delE_tag.

Referenced by Sing::Mdset().

00031 { return delE_tag; }

bool Kpipi0pi0::Getkpipi0pi0md (  )  [inline]

Definition at line 27 of file Kpipi0pi0.h.

References kpipi0pi0md.

Referenced by Sing::Mdset().

00027 { return kpipi0pi0md; }

double Kpipi0pi0::Getmass_bc (  )  [inline]

Definition at line 29 of file Kpipi0pi0.h.

References mass_bc.

Referenced by Sing::Mdset().

00029 { return mass_bc; }

Vint Kpipi0pi0::GettagGam1 (  )  [inline]

Definition at line 34 of file Kpipi0pi0.h.

References iGamtag.

Referenced by Sing::Mdset().

00034 { return iGamtag; }

double Kpipi0pi0::Gettagmd (  )  [inline]

Definition at line 28 of file Kpipi0pi0.h.

References tagmd.

Referenced by Sing::Mdset().

00028 { return tagmd; }

HepLorentzVector Kpipi0pi0::Gettagp1 (  )  [inline]

Definition at line 33 of file Kpipi0pi0.h.

References ptag.

Referenced by Sing::Mdset().

00033 { return ptag; }

Vint Kpipi0pi0::Gettagtrk1 (  )  [inline]

Definition at line 32 of file Kpipi0pi0.h.

References iGoodtag.

Referenced by Sing::Mdset().

00032 { return iGoodtag; }

void Kpipi0pi0::MTotal ( double  event,
SmartDataPtr< EvtRecTrackCol >  evtRecTrkCol,
Vint  iGood,
Vint  iGam,
double  Ebeam,
int  PID_flag,
int  Charge_candidate_D 
)

Definition at line 36 of file Kpipi0pi0.cxx.

References VFHelix::a(), abs, KalmanKinematicFit::AddResonance(), TrackPool::AddTrack(), VertexFit::AddVertex(), KalmanKinematicFit::BuildVirtualParticle(), DstMdcKalTrack::charge(), KalmanKinematicFit::chisq(), cos(), cqtm, delE_tag, ecms, DstEmcShower::energy(), EventModel::EvtRec::EvtRecEvent, VertexFit::Fit(), KalmanKinematicFit::Fit(), RecMdcKalTrack::getZError(), RecMdcKalTrack::getZErrorK(), RecMdcKalTrack::getZHelix(), RecMdcKalTrack::getZHelixK(), genRecEmupikp::i, iGamtag, iGoodtag, VertexFit::init(), KalmanKinematicFit::init(), VertexFit::instance(), KalmanKinematicFit::instance(), IVertexDbSvc::isVertexValid(), ganga-rec::j, DstMdcKalTrack::kaon, kpipi0pi0md, mass_bc, mpi0, KalmanKinematicFit::pfit(), DstEmcShower::phi(), phi1, phi2, phi3, phi4, DstMdcKalTrack::pion, VFHelix::pivot(), ISimplePIDSvc::preparePID(), IVertexDbSvc::PrimaryVertex(), ISimplePIDSvc::probKaon(), ISimplePIDSvc::probPion(), ptag, runNo, s, KalmanKinematicFit::setChisqCut(), VertexParameter::setEvx(), DstMdcKalTrack::setPidType(), VertexParameter::setVx(), IVertexDbSvc::SigmaPrimaryVertex(), sin(), VertexFit::Swim(), tagmd, DstEmcShower::theta(), DstMdcKalTrack::theta(), WTrackParameter::w(), VertexFit::wtrk(), and xmass.

Referenced by Sing::Mdset().

00038 {
00039 
00040   int nGood=iGood.size();
00041   int nGam=iGam.size();
00042 
00043   iGoodtag.clear();
00044   iGamtag.clear();
00045   
00046   double mass_bcgg,delE_tag_temp;
00047   int m_chargetag, m_chargek,m_chargepi;
00048   int ika_temp,ipi_temp, iGam1_temp, iGam2_temp, iGam3_temp, iGam4_temp;
00049   HepLorentzVector pddd;
00050   HepLorentzVector pddd_temp;
00051 
00052   int cqtm_temp;
00053   IDataProviderSvc* eventSvc = NULL;
00054   Gaudi::svcLocator()->service("EventDataSvc", eventSvc);
00055   SmartDataPtr<EvtRecEvent> evtRecEvent(eventSvc,EventModel::EvtRec::EvtRecEvent);
00056   SmartDataPtr<Event::EventHeader> eventHeader(eventSvc,"/Event/EventHeader");
00057 
00058   int runNo=eventHeader->runNumber();
00059   int rec=eventHeader->eventNumber();
00060 
00061   double xecm=2*Ebeam;
00062 
00063   kpipi0pi0md=false;
00064   double  tagmode=0;
00065 
00066   if((evtRecEvent->totalCharged() < 2||nGam<4)){     return;  }
00067 
00068   double ecms = xecm;
00069 
00070 
00071   ISimplePIDSvc* simple_pid;
00072   Gaudi::svcLocator()->service("SimplePIDSvc", simple_pid);
00073  
00074   double deltaE_tem = 0.20;
00075   int ncount1 = 0; 
00076 
00077   Hep3Vector xorigin(0,0,0);
00078   IVertexDbSvc*  vtxsvc;
00079   Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc);
00080   if(vtxsvc->isVertexValid())
00081   {
00082     double* dbv = vtxsvc->PrimaryVertex();
00083     double*  vv = vtxsvc->SigmaPrimaryVertex();
00084     xorigin.setX(dbv[0]);
00085     xorigin.setY(dbv[1]);
00086     xorigin.setZ(dbv[2]);
00087   }
00088 
00089   double xv=xorigin.x();
00090   double yv=xorigin.y();
00091   double zv=xorigin.z();
00092 
00093   HepPoint3D point0(0.,0.,0.);
00094   HepPoint3D IP(xorigin[0],xorigin[1],xorigin[2]);
00096   HepLorentzVector p2gfit1, p2gfit2;
00097   HepLorentzVector p2gg;
00098 
00099   HepLorentzVector ptrk1_temp, ptrk2_temp, ptrk3_temp, ptrk4_temp, ptrk5_temp, ptrk6_temp, ptrk7_temp, ptrk8_temp;
00100   for(int i = 0; i < evtRecEvent->totalCharged(); i++) {
00101     EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + i;
00102 
00103     int ika= (*itTrk)->trackId();
00104 
00105     if(!(*itTrk)->isMdcKalTrackValid()) continue;
00106     RecMdcKalTrack*  mdcKalTrk1 = (*itTrk)->mdcKalTrack();
00107     RecMdcKalTrack::setPidType(RecMdcKalTrack::kaon);
00109     m_chargek=mdcKalTrk1->charge();
00110     if(Charge_candidate_D != 0) {
00111       if(m_chargek != -Charge_candidate_D) continue;
00112     }
00113     if(Charge_candidate_D == 0) {
00114       if(abs(m_chargek) != 1) continue;
00115     }
00117     HepVector a1 = mdcKalTrk1->getZHelixK();
00118     HepSymMatrix Ea1 = mdcKalTrk1->getZErrorK();
00119     VFHelix helixip3_1(point0,a1,Ea1);
00120     helixip3_1.pivot(IP);
00121     HepVector  vecipa1 = helixip3_1.a();
00122 
00123     double dr1 = fabs(vecipa1[0]);
00124     double dz1 = fabs(vecipa1[3]);
00125     double costheta1 = cos(mdcKalTrk1->theta());
00126     if (  dr1 >= 1.0) continue;
00127     if (  dz1 >= 10.0) continue; 
00128     if ( fabs(costheta1) >= 0.93) continue; 
00130     if(PID_flag == 5) {
00131       simple_pid->preparePID(*itTrk);
00132       if(simple_pid->probKaon() < 0.0 || simple_pid->probKaon() < simple_pid->probPion()) continue;  
00133     } 
00135 
00136 
00137     WTrackParameter kam(xmass[3],mdcKalTrk1->getZHelixK(),mdcKalTrk1->getZErrorK() );
00138 
00139     //  
00140     // select pi
00141     //  
00142     for(int j = 0; j< evtRecEvent->totalCharged(); j++) {
00143       EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + j;
00144 
00145       int ipi= (*itTrk)->trackId();
00146       if(ipi==ika)  continue;
00147 
00148       if(!(*itTrk)->isMdcKalTrackValid()) continue;
00149       RecMdcKalTrack*  mdcKalTrk2 = (*itTrk)->mdcKalTrack();
00150       RecMdcKalTrack::setPidType(RecMdcKalTrack::pion);
00152       m_chargepi=mdcKalTrk2->charge();
00153       if((m_chargek + m_chargepi) != 0) continue;
00155       HepVector a2 = mdcKalTrk2->getZHelix();
00156       HepSymMatrix Ea2 = mdcKalTrk2->getZError();
00157       VFHelix helixip3_2(point0,a2,Ea2);
00158       helixip3_2.pivot(IP);
00159       HepVector  vecipa2 = helixip3_2.a();
00160 
00161       double dr2 = fabs(vecipa2[0]);
00162       double dz2 = fabs(vecipa2[3]);
00163       double costheta2 = cos(mdcKalTrk2->theta());
00164       if (  dr2 >= 1.0) continue;
00165       if (  dz2 >= 10.0) continue; 
00166       if ( fabs(costheta2) >= 0.93) continue; 
00168       if(PID_flag == 5) {
00169         simple_pid->preparePID(*itTrk);
00170         if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue;  
00171       } 
00173 
00174       WTrackParameter pip(xmass[2],mdcKalTrk2->getZHelix(),mdcKalTrk2->getZError() );
00175 
00176       for(int m = 0; m < nGam-1; m++) {
00177         if(iGam[m]==-1) continue;
00178         RecEmcShower *g1Trk = (*(evtRecTrkCol->begin()+iGam[m]))->emcShower();
00179         double eraw1 = g1Trk->energy();
00180         double phi1 = g1Trk->phi();
00181         double the1 = g1Trk->theta();
00182         HepLorentzVector ptrkg1,ptrkg10,ptrkg12;
00183         ptrkg1.setPx(eraw1*sin(the1)*cos(phi1));
00184         ptrkg1.setPy(eraw1*sin(the1)*sin(phi1));
00185         ptrkg1.setPz(eraw1*cos(the1));
00186         ptrkg1.setE(eraw1);
00187         ptrkg10 = ptrkg1;
00188         ptrkg12 = ptrkg1.boost(-0.011,0,0);
00189 
00190         for(int n = m+1; n < nGam; n++) {
00191           if(iGam[n]==-1) continue;
00192           RecEmcShower *g2Trk = (*(evtRecTrkCol->begin()+iGam[n]))->emcShower();
00193           double eraw2 = g2Trk->energy();
00194           double phi2 = g2Trk->phi();
00195           double the2 = g2Trk->theta();
00196           HepLorentzVector ptrkg2,ptrkg20,ptrkg22;
00197           ptrkg2.setPx(eraw2*sin(the2)*cos(phi2));
00198           ptrkg2.setPy(eraw2*sin(the2)*sin(phi2));
00199           ptrkg2.setPz(eraw2*cos(the2));
00200           ptrkg2.setE(eraw2);
00201           ptrkg20 = ptrkg2;
00202           ptrkg22 = ptrkg2.boost(-0.011,0,0);
00203 
00205           HepLorentzVector  ptrkpi0;
00206           ptrkpi0 = ptrkg12+ptrkg22;
00207           double m_xmpi0_tem = ptrkpi0.mag();
00208           if(m_xmpi0_tem>0.150||m_xmpi0_tem<0.115)  continue;
00210           bool IsEndcap1 = false; bool IsEndcap2 = false;
00211           if(fabs(cos(the1)) > 0.86 && fabs(cos(the1)) < 0.92) IsEndcap1 = true;
00212           if(fabs(cos(the2)) > 0.86 && fabs(cos(the2)) < 0.92) IsEndcap2 = true;
00213           if(IsEndcap1 && IsEndcap2)  continue;
00215 
00216           KalmanKinematicFit * kmfit = KalmanKinematicFit::instance();
00217           kmfit->init();
00218           kmfit->setChisqCut(2500);
00219           kmfit->AddTrack(0, 0.0 , g1Trk);
00220           kmfit->AddTrack(1, 0.0 , g2Trk);
00221           kmfit->AddResonance(0, mpi0, 0, 1);
00222           kmfit->Fit(0);  // Perform fit
00223           kmfit->BuildVirtualParticle(0);
00224 
00225           double pi0_chisq = kmfit->chisq(0);
00226           if ( pi0_chisq >= 2500) continue;
00227           HepLorentzVector p2gfit1 = kmfit->pfit(0) + kmfit->pfit(1);
00228           p2gfit1.boost(-0.011,0,0);
00229 
00230           for(int s = 0; s < nGam-1; s++) {
00231             if(iGam[s]==-1) continue;
00232             RecEmcShower *g3Trk = (*(evtRecTrkCol->begin()+iGam[s]))->emcShower();
00233             if(iGam[s] == iGam[m] || iGam[s] == iGam[n] )   continue;
00234             double eraw3 = g3Trk->energy();
00235             double phi3 = g3Trk->phi();
00236             double the3 = g3Trk->theta();
00237             HepLorentzVector ptrkg3,ptrkg30,ptrkg32;
00238             ptrkg3.setPx(eraw3*sin(the3)*cos(phi3));
00239             ptrkg3.setPy(eraw3*sin(the3)*sin(phi3));
00240             ptrkg3.setPz(eraw3*cos(the3));
00241             ptrkg3.setE(eraw3);
00242             ptrkg30 = ptrkg3;
00243             ptrkg32 = ptrkg3.boost(-0.011,0,0);
00244 
00245             for(int r = s+1; r < nGam; r++) {
00246               if(iGam[r]==-1) continue;
00247               RecEmcShower *g4Trk = (*(evtRecTrkCol->begin()+iGam[r]))->emcShower();
00248               if(iGam[r] == iGam[m] || iGam[r] == iGam[n] )   continue;
00249               double eraw4 = g4Trk->energy();
00250               double phi4 = g4Trk->phi();
00251               double the4 = g4Trk->theta();
00252               HepLorentzVector ptrkg4,ptrkg40,ptrkg42;
00253               ptrkg4.setPx(eraw4*sin(the4)*cos(phi4));
00254               ptrkg4.setPy(eraw4*sin(the4)*sin(phi4));
00255               ptrkg4.setPz(eraw4*cos(the4));
00256               ptrkg4.setE(eraw4);
00257               ptrkg40 = ptrkg4;
00258               ptrkg42 = ptrkg4.boost(-0.011,0,0);
00259 
00261               HepLorentzVector  ptrkpi0_2;
00262               ptrkpi0_2 = ptrkg32+ptrkg42;
00263               double m_xmpi0_2_tem = ptrkpi0_2.mag();
00264               if(m_xmpi0_2_tem>0.150||m_xmpi0_2_tem<0.115)  continue;
00266               bool IsEndcap3 = false; bool IsEndcap4 = false;
00267               if(fabs(cos(the3)) > 0.86 && fabs(cos(the3)) < 0.92) IsEndcap3 = true;
00268               if(fabs(cos(the4)) > 0.86 && fabs(cos(the4)) < 0.92) IsEndcap4 = true;
00269               if(IsEndcap3 && IsEndcap4)  continue;
00271 
00272               KalmanKinematicFit * kmfit2 = KalmanKinematicFit::instance();
00273               kmfit2->init();
00274               kmfit2->setChisqCut(2500);
00275               kmfit2->AddTrack(0, 0.0 , g3Trk);
00276               kmfit2->AddTrack(1, 0.0 , g4Trk);
00277               kmfit2->AddResonance(0, mpi0, 0, 1);
00278 
00279               kmfit2->Fit(0);  // Perform fit
00280               kmfit2->BuildVirtualParticle(0);
00281 
00282               double pi0_2_chisq = kmfit2->chisq(0);
00283               if ( pi0_2_chisq >= 2500) continue;
00284               HepLorentzVector p2gfit2 = kmfit2->pfit(0) + kmfit2->pfit(1);
00285               p2gfit2.boost(-0.011,0,0);
00286 
00287 
00289               HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z());
00290               HepSymMatrix Evx(3, 0);
00291               double bx = 1E+6; Evx[0][0] = bx*bx;
00292               double by = 1E+6; Evx[1][1] = by*by;
00293               double bz = 1E+6; Evx[2][2] = bz*bz;
00294               VertexParameter vxpar; vxpar.setVx(vx); vxpar.setEvx(Evx);
00296 
00297               VertexFit* vtxfit = VertexFit::instance();
00298               vtxfit->init();
00299               vtxfit->AddTrack(0,  kam);
00300               vtxfit->AddTrack(1,  pip);
00301               vtxfit->AddVertex(0, vxpar, 0, 1);
00302               if(!vtxfit->Fit(0))  continue;
00303               vtxfit->Swim(0);
00304 
00305               WTrackParameter wkam = vtxfit->wtrk(0);
00306               WTrackParameter wpip = vtxfit->wtrk(1);
00307 
00308               HepVector kam_val = HepVector(7,0);
00309               kam_val = wkam.w();
00310               HepVector pip_val = HepVector(7,0);
00311               pip_val = wpip.w();
00312 
00313               HepLorentzVector P_KAM(kam_val[0],kam_val[1],kam_val[2],kam_val[3]);
00314               HepLorentzVector P_PIP(pip_val[0],pip_val[1],pip_val[2],pip_val[3]);
00315 
00316               P_KAM.boost(-0.011,0,0);
00317               P_PIP.boost(-0.011,0,0);
00318               pddd = P_KAM + P_PIP + p2gfit1 + p2gfit2;
00319 
00320               double pkpipi0pi0=pddd.rho();
00321 
00322               double temp1 = (ecms/2)*(ecms/2)-pkpipi0pi0*pkpipi0pi0 ;
00323               if(temp1<0) temp1 =0;
00324               double mass_bc_tem  = sqrt(temp1);
00325               if(mass_bc_tem < 1.82 || mass_bc_tem > 1.89) continue;
00326 
00327               double  delE_tag_tag = ecms/2-pddd.e();
00328 
00329               if(fabs(delE_tag_tag)<deltaE_tem) {
00330                 deltaE_tem = fabs(delE_tag_tag);
00331                 delE_tag_temp = delE_tag_tag;
00332                 mass_bcgg = mass_bc_tem;
00333 
00334                 pddd_temp = pddd; 
00335                 cqtm_temp = m_chargek;
00336                 
00337                 ika_temp=ika;
00338                 ipi_temp=ipi;
00339 
00340                 iGam1_temp = iGam[m];
00341                 iGam2_temp = iGam[n];
00342                 iGam3_temp = iGam[s];
00343                 iGam4_temp = iGam[r];
00344                 ncount1 = 1;
00345 
00346               }
00347             }
00348           }
00349         }
00350       }
00351     }
00352   }
00353 
00354   if(ncount1 == 1){
00355     tagmode=25;
00356     if(cqtm_temp<0) tagmode=-25;
00357     tagmd=tagmode;
00358     mass_bc = mass_bcgg;
00359     delE_tag = delE_tag_temp;
00360 
00361     cqtm     = -1.0*cqtm_temp;
00362 
00363     iGoodtag.push_back(ipi_temp);
00364     iGoodtag.push_back(ika_temp);
00365 
00366     iGamtag.push_back(iGam1_temp);
00367     iGamtag.push_back(iGam2_temp);
00368     iGamtag.push_back(iGam3_temp);
00369     iGamtag.push_back(iGam4_temp);
00370     
00371     ptag = pddd_temp;
00372 
00373     kpipi0pi0md = true;
00374 
00375   }
00376 
00377 
00378 }

Member Data Documentation

double Kpipi0pi0::cqtm [private]

Definition at line 44 of file Kpipi0pi0.h.

Referenced by GetCQtm(), and MTotal().

double Kpipi0pi0::delE_tag [private]

Definition at line 45 of file Kpipi0pi0.h.

Referenced by GetdelE_tag(), and MTotal().

Vint Kpipi0pi0::iGamtag [private]

Definition at line 48 of file Kpipi0pi0.h.

Referenced by GettagGam1(), and MTotal().

Vint Kpipi0pi0::iGoodtag [private]

Definition at line 46 of file Kpipi0pi0.h.

Referenced by Gettagtrk1(), and MTotal().

bool Kpipi0pi0::kpipi0pi0md [private]

Definition at line 41 of file Kpipi0pi0.h.

Referenced by Getkpipi0pi0md(), and MTotal().

double Kpipi0pi0::mass_bc [private]

Definition at line 43 of file Kpipi0pi0.h.

Referenced by Getmass_bc(), and MTotal().

HepLorentzVector Kpipi0pi0::ptag [private]

Definition at line 47 of file Kpipi0pi0.h.

Referenced by Gettagp1(), and MTotal().

double Kpipi0pi0::tagmd [private]

Definition at line 42 of file Kpipi0pi0.h.

Referenced by Gettagmd(), and MTotal().

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