Kkpipi Class Reference

#include <Kkpipi.h>

List of all members.

Public Member Functions

 Kkpipi ()
 ~Kkpipi ()
bool Getkkpipimd ()
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 kkpipimd
double tagmd
double mass_bc
double cqtm
double delE_tag
Vint iGoodtag
HepLorentzVector ptag
Vint iGamtag

Detailed Description

Definition at line 20 of file Kkpipi.h.

Constructor & Destructor Documentation

Kkpipi::Kkpipi (  ) 

Definition at line 26 of file Kkpipi.cxx.

00027 {}

Kkpipi::~Kkpipi (  ) 

Definition at line 29 of file Kkpipi.cxx.

00030 {}

Member Function Documentation

double Kkpipi::GetCQtm (  )  [inline]

Definition at line 30 of file Kkpipi.h.

References cqtm.

Referenced by Sing::Mdset().

00030 { return cqtm; }

double Kkpipi::GetdelE_tag (  )  [inline]

Definition at line 31 of file Kkpipi.h.

References delE_tag.

Referenced by Sing::Mdset().

00031 { return delE_tag; }

bool Kkpipi::Getkkpipimd (  )  [inline]

Definition at line 27 of file Kkpipi.h.

References kkpipimd.

Referenced by Sing::Mdset().

00027 { return kkpipimd; }

double Kkpipi::Getmass_bc (  )  [inline]

Definition at line 29 of file Kkpipi.h.

References mass_bc.

Referenced by Sing::Mdset().

00029 { return mass_bc; }

Vint Kkpipi::GettagGam1 (  )  [inline]

Definition at line 34 of file Kkpipi.h.

References iGamtag.

Referenced by Sing::Mdset().

00034 { return iGamtag; }

double Kkpipi::Gettagmd (  )  [inline]

Definition at line 28 of file Kkpipi.h.

References tagmd.

Referenced by Sing::Mdset().

00028 { return tagmd; }

HepLorentzVector Kkpipi::Gettagp1 (  )  [inline]

Definition at line 33 of file Kkpipi.h.

References ptag.

Referenced by Sing::Mdset().

00033 { return ptag; }

Vint Kkpipi::Gettagtrk1 (  )  [inline]

Definition at line 32 of file Kkpipi.h.

References iGoodtag.

Referenced by Sing::Mdset().

00032 { return iGoodtag; }

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

Definition at line 33 of file Kkpipi.cxx.

References VFHelix::a(), TrackPool::AddTrack(), VertexFit::AddVertex(), DstMdcKalTrack::charge(), cos(), cqtm, delE_tag, ecms, EventModel::EvtRec::EvtRecEvent, VertexFit::Fit(), RecMdcKalTrack::getZError(), RecMdcKalTrack::getZErrorK(), RecMdcKalTrack::getZHelix(), RecMdcKalTrack::getZHelixK(), genRecEmupikp::i, iGamtag, iGoodtag, VertexFit::init(), VertexFit::instance(), IVertexDbSvc::isVertexValid(), ganga-rec::j, DstMdcKalTrack::kaon, kkpipimd, mass_bc, DstMdcKalTrack::pion, VFHelix::pivot(), ISimplePIDSvc::preparePID(), IVertexDbSvc::PrimaryVertex(), ISimplePIDSvc::probKaon(), ISimplePIDSvc::probPion(), ptag, runNo, VertexParameter::setEvx(), DstMdcKalTrack::setPidType(), VertexParameter::setVx(), IVertexDbSvc::SigmaPrimaryVertex(), VertexFit::Swim(), tagmd, DstMdcKalTrack::theta(), WTrackParameter::w(), VertexFit::wtrk(), and xmass.

Referenced by Sing::Mdset().

00035 {
00036 
00037   int nGood=iGood.size();
00038   int nGam=iGam.size();
00039 
00040   iGoodtag.clear();
00041   iGamtag.clear();
00042   
00043   double mass_bcgg, delE_tag_temp;
00044   int m_chargetag, m_chargek1,m_chargek2,m_chargepi1,m_chargepi2;
00045   int ik1_temp, ik2_temp, ipi1_temp, ipi2_temp;
00046   HepLorentzVector pddd;
00047   HepLorentzVector pddd_temp;
00048 
00049   IDataProviderSvc* eventSvc = NULL;
00050   Gaudi::svcLocator()->service("EventDataSvc", eventSvc);
00051   SmartDataPtr<EvtRecEvent> evtRecEvent(eventSvc, EventModel::EvtRec::EvtRecEvent);
00052   SmartDataPtr<Event::EventHeader> eventHeader(eventSvc,"/Event/EventHeader");
00053 
00054   int runNo=eventHeader->runNumber();
00055   int rec=eventHeader->eventNumber();
00056 
00057   double xecm=2*Ebeam;
00058 
00059   kkpipimd=false;
00060   double  tagmode=0;
00061           
00062   if((evtRecEvent->totalCharged() < 4)){    return;  }
00063 
00064   double ecms = xecm;
00065 
00066   ISimplePIDSvc* simple_pid;
00067   Gaudi::svcLocator()->service("SimplePIDSvc", simple_pid);
00068 
00069   double deltaE_tem = 0.20;
00070   int ncount1 = 0; 
00071 
00072   Hep3Vector xorigin(0,0,0);
00073   IVertexDbSvc*  vtxsvc;
00074   Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc);
00075   if(vtxsvc->isVertexValid())
00076   {
00077     double* dbv = vtxsvc->PrimaryVertex();
00078     double*  vv = vtxsvc->SigmaPrimaryVertex();
00079     xorigin.setX(dbv[0]);
00080     xorigin.setY(dbv[1]);
00081     xorigin.setZ(dbv[2]);
00082   }
00083 
00084   double xv=xorigin.x();
00085   double yv=xorigin.y();
00086   double zv=xorigin.z();
00087 
00088   HepPoint3D point0(0.,0.,0.);
00089   HepPoint3D IP(xorigin[0],xorigin[1],xorigin[2]);
00091   for(int i = 0; i < evtRecEvent->totalCharged(); i++) {
00092     EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + i;
00093 
00094     int ik1 = (*itTrk)->trackId();
00095 
00096     if(!(*itTrk)->isMdcKalTrackValid()) continue;
00097     RecMdcKalTrack*  mdcKalTrk1 = (*itTrk)->mdcKalTrack();
00098     RecMdcKalTrack::setPidType(RecMdcKalTrack::kaon);
00099 
00100     m_chargek1 = mdcKalTrk1->charge();
00101     if(m_chargek1 != 1) continue;
00102 
00104     HepVector a1 = mdcKalTrk1->getZHelixK();
00105     HepSymMatrix Ea1 = mdcKalTrk1->getZErrorK();
00106 
00107     VFHelix helixip3_1(point0,a1,Ea1);
00108     helixip3_1.pivot(IP);
00109     HepVector  vecipa1 = helixip3_1.a();
00110 
00111     double dr1 = fabs(vecipa1[0]);
00112     double dz1 = fabs(vecipa1[3]);
00113     double costheta1 = cos(mdcKalTrk1->theta());
00114 
00115     if (  dr1 >= 1.0) continue;
00116     if (  dz1 >= 10.0) continue; 
00117     if ( fabs(costheta1) >= 0.93) continue; 
00119     if(PID_flag == 5) {
00120       simple_pid->preparePID(*itTrk);
00121       if(simple_pid->probKaon() < 0 || simple_pid->probKaon() < simple_pid->probPion()) continue;  
00122     } 
00124 
00125     WTrackParameter kap(xmass[3],mdcKalTrk1->getZHelixK(),mdcKalTrk1->getZErrorK() );
00126 
00127     //  
00128     // select K2
00129     //  
00130     for(int j = 0; j< evtRecEvent->totalCharged();j++) {
00131       EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + j;
00132 
00133       int ik2 = (*itTrk)->trackId();
00134       if(ik1==ik2)  continue;
00135 
00136       if(!(*itTrk)->isMdcKalTrackValid()) continue;
00137       RecMdcKalTrack*  mdcKalTrk2 = (*itTrk)->mdcKalTrack();
00138       RecMdcKalTrack::setPidType(RecMdcKalTrack::kaon);
00139 
00140       m_chargek2=mdcKalTrk2->charge();
00141       if((m_chargek1 + m_chargek2) != 0) continue;
00142 
00144       HepVector a2 = mdcKalTrk2->getZHelixK();
00145       HepSymMatrix Ea2 = mdcKalTrk2->getZErrorK();
00146       VFHelix helixip3_2(point0,a2,Ea2);
00147       helixip3_2.pivot(IP);
00148       HepVector  vecipa2 = helixip3_2.a();
00149 
00150       double dr2 = fabs(vecipa2[0]);
00151       double dz2 = fabs(vecipa2[3]);
00152       double costheta2 = cos(mdcKalTrk2->theta());
00153       if (  dr2 >= 1.0) continue;
00154       if (  dz2 >= 10.0) continue; 
00155       if ( fabs(costheta2) >= 0.93) continue; 
00157       if(PID_flag == 5) {
00158         simple_pid->preparePID(*itTrk);
00159         if(simple_pid->probKaon() < 0 || simple_pid->probKaon() < simple_pid->probPion()) continue;  
00160       } 
00162 
00163       WTrackParameter kam(xmass[3],mdcKalTrk2->getZHelixK(),mdcKalTrk2->getZErrorK() );
00164 
00165       //        
00166       //select pi1
00167       //        
00168       for(int k = 0; k< evtRecEvent->totalCharged(); k++) {
00169         EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + k;
00170 
00171         int ipi1= (*itTrk)->trackId();
00172         if(ipi1==ik1 || ipi1==ik2)  continue;
00173 
00174         if(!(*itTrk)->isMdcKalTrackValid()) continue;
00175         RecMdcKalTrack*  mdcKalTrk3 = (*itTrk)->mdcKalTrack();
00176         RecMdcKalTrack::setPidType(RecMdcKalTrack::pion);
00177 
00178         m_chargepi1=mdcKalTrk3->charge();
00179         if(m_chargepi1 != 1) continue;
00180 
00182         HepVector a3 = mdcKalTrk3->getZHelix();
00183         HepSymMatrix Ea3 = mdcKalTrk3->getZError();
00184         VFHelix helixip3_3(point0,a3,Ea3);
00185         helixip3_3.pivot(IP);
00186         HepVector  vecipa3 = helixip3_3.a();
00187 
00188         double dr3 = fabs(vecipa3[0]);
00189         double dz3 = fabs(vecipa3[3]);
00190         double costheta3 = cos(mdcKalTrk3->theta());
00191         if (  dr3 >= 1.0) continue;
00192         if (  dz3 >= 10.0) continue; 
00193         if ( fabs(costheta3) >= 0.93) continue; 
00195         if(PID_flag == 5) {
00196           simple_pid->preparePID(*itTrk);
00197           if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue;  
00198         } 
00200         WTrackParameter pip(xmass[2],mdcKalTrk3->getZHelix(),mdcKalTrk3->getZError() );
00201 
00202         //
00203         // select pi2
00204         //
00205         for(int l = 0; l< evtRecEvent->totalCharged();l++) {
00206           EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + l;
00207 
00208           int ipi2= (*itTrk)->trackId();
00209           if(ipi2==ik1 || ipi2==ik2 || ipi2==ipi1 )  continue;
00210 
00211           if(!(*itTrk)->isMdcKalTrackValid()) continue;
00212           RecMdcKalTrack*  mdcKalTrk4 = (*itTrk)->mdcKalTrack();
00213           RecMdcKalTrack::setPidType(RecMdcKalTrack::pion);
00214 
00215           m_chargepi2 = mdcKalTrk4->charge();
00216           if((m_chargepi1 + m_chargepi2) != 0) continue;
00217 
00219           HepVector a4 = mdcKalTrk4->getZHelix();
00220           HepSymMatrix Ea4 = mdcKalTrk4->getZError();
00221           VFHelix helixip3_4(point0,a4,Ea4);
00222           helixip3_4.pivot(IP);
00223           HepVector  vecipa4 = helixip3_4.a();
00224 
00225           double dr4 = fabs(vecipa4[0]);
00226           double dz4 = fabs(vecipa4[3]);
00227           double costheta4 = cos(mdcKalTrk4->theta());
00228           if (  dr4 >= 1.0) continue;
00229           if (  dz4 >= 10.0) continue; 
00230           if ( fabs(costheta4) >= 0.93) continue; 
00232           if(PID_flag == 5) {
00233             simple_pid->preparePID(*itTrk);
00234             if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue;  
00235           } 
00237 
00238           WTrackParameter pim(xmass[2],mdcKalTrk4->getZHelix(),mdcKalTrk4->getZError() );
00239 
00241           HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z());
00242           HepSymMatrix Evx(3, 0);
00243           double bx = 1E+6; Evx[0][0] = bx*bx;
00244           double by = 1E+6; Evx[1][1] = by*by;
00245           double bz = 1E+6; Evx[2][2] = bz*bz;
00246           VertexParameter vxpar; vxpar.setVx(vx); vxpar.setEvx(Evx);
00248 
00249           VertexFit* vtxfit = VertexFit::instance();
00250           vtxfit->init();
00251           vtxfit->AddTrack(0,  kap);
00252           vtxfit->AddTrack(1,  kam);
00253           vtxfit->AddTrack(2,  pip);
00254           vtxfit->AddTrack(3,  pim);
00255           vtxfit->AddVertex(0, vxpar, 0, 1, 2, 3);
00256           if(!vtxfit->Fit(0))  continue;
00257           vtxfit->Swim(0);
00258 
00259           WTrackParameter wkap = vtxfit->wtrk(0);
00260           WTrackParameter wkam = vtxfit->wtrk(1);
00261           WTrackParameter wpip = vtxfit->wtrk(2);
00262           WTrackParameter wpim = vtxfit->wtrk(3);
00263 
00264           HepVector kap_val = HepVector(7,0);
00265           HepVector kam_val = HepVector(7,0);
00266           HepVector pip_val = HepVector(7,0);
00267           HepVector pim_val = HepVector(7,0);
00268           kap_val = wkap.w();
00269           kam_val = wkam.w();
00270           pip_val = wpip.w();
00271           pim_val = wpim.w();
00272 
00273           HepLorentzVector P_KAP(kap_val[0],kap_val[1],kap_val[2],kap_val[3]);
00274           HepLorentzVector P_KAM(kam_val[0],kam_val[1],kam_val[2],kam_val[3]);
00275           HepLorentzVector P_PIP(pip_val[0],pip_val[1],pip_val[2],pip_val[3]);
00276           HepLorentzVector P_PIM(pim_val[0],pim_val[1],pim_val[2],pim_val[3]);
00277 
00278           P_KAP.boost(-0.011,0,0);
00279           P_KAM.boost(-0.011,0,0);
00280           P_PIP.boost(-0.011,0,0);
00281           P_PIM.boost(-0.011,0,0);
00282           pddd = P_KAP + P_KAM + P_PIP + P_PIM; 
00283 
00284           double   pkkpipi=pddd.rho();
00285 
00286           double temp1 = (ecms/2)*(ecms/2)-pkkpipi*pkkpipi ;
00287           if(temp1<0) temp1 =0;
00288           double mass_bc_tem  = sqrt(temp1);
00289           if(mass_bc_tem < 1.82 || mass_bc_tem > 1.89) continue;
00290           
00291           double  delE_tag_tag = ecms/2-pddd.e();
00292           
00293           if(fabs(delE_tag_tag)<deltaE_tem)  {
00294             deltaE_tem = fabs(delE_tag_tag);
00295             delE_tag_temp = delE_tag_tag;
00296             mass_bcgg = mass_bc_tem;
00297 
00298             pddd_temp =  pddd;
00299 
00300             ik1_temp=ik1;
00301             ik2_temp=ik2;
00302             ipi1_temp=ipi1;
00303             ipi2_temp=ipi2;
00304             ncount1 = 1;
00305 
00306           }   
00307         }
00308       }
00309     }
00310   }
00311 
00312   if(ncount1 == 1){
00313     tagmode=20;
00314     if(m_chargetag<0)  tagmode=-20;
00315     tagmd=tagmode;
00316     mass_bc  = mass_bcgg;
00317     delE_tag = delE_tag_temp;
00318     cqtm     = 0.0;
00319 
00320     iGoodtag.push_back(ik1_temp);
00321     iGoodtag.push_back(ik2_temp);
00322     iGoodtag.push_back(ipi1_temp);
00323     iGoodtag.push_back(ipi2_temp);
00324 
00325     iGamtag.push_back(9999);
00326     iGamtag.push_back(9999);
00327     iGamtag.push_back(9999);
00328     iGamtag.push_back(9999);
00329 
00330     ptag = pddd_temp;
00331 
00332     kkpipimd=true;
00333 
00334   }
00335 }

Member Data Documentation

double Kkpipi::cqtm [private]

Definition at line 44 of file Kkpipi.h.

Referenced by GetCQtm(), and MTotal().

double Kkpipi::delE_tag [private]

Definition at line 45 of file Kkpipi.h.

Referenced by GetdelE_tag(), and MTotal().

Vint Kkpipi::iGamtag [private]

Definition at line 48 of file Kkpipi.h.

Referenced by GettagGam1(), and MTotal().

Vint Kkpipi::iGoodtag [private]

Definition at line 46 of file Kkpipi.h.

Referenced by Gettagtrk1(), and MTotal().

bool Kkpipi::kkpipimd [private]

Definition at line 41 of file Kkpipi.h.

Referenced by Getkkpipimd(), and MTotal().

double Kkpipi::mass_bc [private]

Definition at line 43 of file Kkpipi.h.

Referenced by Getmass_bc(), and MTotal().

HepLorentzVector Kkpipi::ptag [private]

Definition at line 47 of file Kkpipi.h.

Referenced by Gettagp1(), and MTotal().

double Kkpipi::tagmd [private]

Definition at line 42 of file Kkpipi.h.

Referenced by Gettagmd(), and MTotal().

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