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00023 #include "SD0TagAlg/Kpi.h"
00024 #include "SD0TagAlg/SingleBase.h"
00025
00026
00027 Kpi::Kpi()
00028 {}
00029
00030 Kpi::~Kpi()
00031 {}
00032
00033 void Kpi::MTotal(double event,SmartDataPtr<EvtRecTrackCol> evtRecTrkCol, Vint iGood,Vint
00034 iGam, double Ebeam, int PID_flag, int Charge_candidate_D)
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_chargek,m_chargepi;
00045 int ika_temp,ipi_temp,ipi2_temp,ipi3_temp;
00046 HepLorentzVector kmfit1,kmfit2,kmfit3,kmfit4,pddd;
00047
00048 int cqtm_temp;
00049 HepLorentzVector pddd_temp;
00050 IDataProviderSvc* eventSvc = NULL;
00051 Gaudi::svcLocator()->service("EventDataSvc", eventSvc);
00052 SmartDataPtr<EvtRecEvent> evtRecEvent(eventSvc,EventModel::EvtRec::EvtRecEvent);
00053 SmartDataPtr<Event::EventHeader> eventHeader(eventSvc,"/Event/EventHeader");
00054
00055 int runNo=eventHeader->runNumber();
00056 int rec=eventHeader->eventNumber();
00057
00058 double xecm=2*Ebeam;
00059
00060 kpimd = false;
00061 double tagmode=0;
00062
00063 if((evtRecEvent->totalCharged() < 2)){ return; }
00064
00065 double ecms = xecm; ;
00066
00067 ISimplePIDSvc* simple_pid;
00068 Gaudi::svcLocator()->service("SimplePIDSvc", simple_pid);
00069
00070 double deltaE_tem = 0.20;
00071 int ncount1 = 0;
00072
00073 Hep3Vector xorigin(0,0,0);
00074 IVertexDbSvc* vtxsvc;
00075 Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc);
00076 if(vtxsvc->isVertexValid())
00077 {
00078 double* dbv = vtxsvc->PrimaryVertex();
00079 double* vv = vtxsvc->SigmaPrimaryVertex();
00080 xorigin.setX(dbv[0]);
00081 xorigin.setY(dbv[1]);
00082 xorigin.setZ(dbv[2]);
00083 }
00084
00085 double xv=xorigin.x();
00086 double yv=xorigin.y();
00087 double zv=xorigin.z();
00088
00089 HepPoint3D point0(0.,0.,0.);
00090 HepPoint3D IP(xorigin[0],xorigin[1],xorigin[2]);
00091
00092 HepLorentzVector ptrk1_temp, ptrk2_temp;
00094 for(int i = 0; i < evtRecEvent->totalCharged(); i++) {
00095 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + i;
00096
00097 int ika= (*itTrk)->trackId();
00098
00099 if(!(*itTrk)->isMdcKalTrackValid()) continue;
00100 RecMdcKalTrack* mdcKalTrk1 = (*itTrk)->mdcKalTrack();
00101 RecMdcKalTrack::setPidType(RecMdcKalTrack::kaon);
00103 m_chargek=mdcKalTrk1->charge();
00104 if(Charge_candidate_D != 0) {
00105 if(m_chargek != -Charge_candidate_D) continue;
00106 }
00107 if(Charge_candidate_D == 0) {
00108 if(abs(m_chargek) != 1) continue;
00109 }
00111 HepVector a1 = mdcKalTrk1->getZHelixK();
00112 HepSymMatrix Ea1 = mdcKalTrk1->getZErrorK();
00113 VFHelix helixip3_1(point0,a1,Ea1);
00114 helixip3_1.pivot(IP);
00115 HepVector vecipa1 = helixip3_1.a();
00116
00117 double dr1 = fabs(vecipa1[0]);
00118 double dz1 = fabs(vecipa1[3]);
00119 double costheta1 = cos(mdcKalTrk1->theta());
00120 if ( dr1 >= 1.0) continue;
00121 if ( dz1 >= 10.0) continue;
00122 if ( fabs(costheta1) >= 0.93) continue;
00124 if(PID_flag == 5) {
00125 simple_pid->preparePID(*itTrk);
00126 if(simple_pid->probKaon() < 0.0 || simple_pid->probKaon() < simple_pid->probPion()) continue;
00127 }
00129
00130 WTrackParameter kam(xmass[3],mdcKalTrk1->getZHelixK(),mdcKalTrk1->getZErrorK() );
00131
00132
00133
00134
00135 for(int j = 0; j< evtRecEvent->totalCharged();j++) {
00136 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + j;
00137
00138 int ipi= (*itTrk)->trackId();
00139 if(ipi==ika) continue;
00140
00141 if(!(*itTrk)->isMdcKalTrackValid()) continue;
00142 RecMdcKalTrack* mdcKalTrk2 = (*itTrk)->mdcKalTrack();
00143 RecMdcKalTrack::setPidType(RecMdcKalTrack::pion);
00144
00146 m_chargepi=mdcKalTrk2->charge();
00147 if((m_chargek + m_chargepi) != 0) continue;
00149 HepVector a2 = mdcKalTrk2->getZHelix();
00150 HepSymMatrix Ea2 = mdcKalTrk2->getZError();
00151 VFHelix helixip3_2(point0,a2,Ea2);
00152 helixip3_2.pivot(IP);
00153 HepVector vecipa2 = helixip3_2.a();
00154
00155 double dr2 = fabs(vecipa2[0]);
00156 double dz2 = fabs(vecipa2[3]);
00157 double costheta2 = cos(mdcKalTrk2->theta());
00158 if ( dr2 >= 1.0) continue;
00159 if ( dz2 >= 10.0) continue;
00160 if ( fabs(costheta2) >= 0.93) continue;
00162 if(PID_flag == 5) {
00163 simple_pid->preparePID(*itTrk);
00164 if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue;
00165 }
00167
00168 WTrackParameter pip(xmass[2], mdcKalTrk2->getZHelix(),mdcKalTrk2->getZError() );
00169
00171 HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z());
00172 HepSymMatrix Evx(3, 0);
00173 double bx = 1E+6; Evx[0][0] = bx*bx;
00174 double by = 1E+6; Evx[1][1] = by*by;
00175 double bz = 1E+6; Evx[2][2] = bz*bz;
00176 VertexParameter vxpar; vxpar.setVx(vx); vxpar.setEvx(Evx);
00178
00179 VertexFit* vtxfit = VertexFit::instance();
00180 vtxfit->init();
00181 vtxfit->AddTrack(0, kam);
00182 vtxfit->AddTrack(1, pip);
00183 vtxfit->AddVertex(0, vxpar, 0, 1);
00184 if(!vtxfit->Fit(0)) continue;
00185 vtxfit->Swim(0);
00186
00187 WTrackParameter wkam = vtxfit->wtrk(0);
00188 WTrackParameter wpip = vtxfit->wtrk(1);
00189
00190 HepVector kam_val = HepVector(7,0);
00191 kam_val = wkam.w();
00192 HepVector pip_val = HepVector(7,0);
00193 pip_val = wpip.w();
00194
00195 HepLorentzVector P_KAM(kam_val[0],kam_val[1],kam_val[2],kam_val[3]);
00196 HepLorentzVector P_PIP(pip_val[0],pip_val[1],pip_val[2],pip_val[3]);
00197
00198 P_KAM.boost(-0.011,0,0);
00199 P_PIP.boost(-0.011,0,0);
00200 pddd = P_KAM + P_PIP;
00201
00202 double pkpi=pddd.rho();
00203
00204 double temp1 = (ecms/2)*(ecms/2)-pkpi*pkpi;
00205 if(temp1<0) temp1 =0;
00206 double mass_bc_tem = sqrt(temp1);
00207
00208 if(mass_bc_tem < 1.82 || mass_bc_tem > 1.89) continue;
00209
00210 double delE_tag_tag = ecms/2-pddd.e();
00211
00212
00213 if(fabs(delE_tag_tag)<deltaE_tem) {
00214 deltaE_tem = fabs(delE_tag_tag);
00215 delE_tag_temp = delE_tag_tag;
00216 mass_bcgg = mass_bc_tem;
00217
00218 pddd_temp = pddd;
00219 cqtm_temp = m_chargek;
00220 ika_temp=ika;
00221 ipi_temp=ipi;
00222 ncount1 = 1;
00223 }
00224 }
00225 }
00226
00227 if(ncount1 == 1){
00228 tagmode = 11;
00229 if(cqtm_temp<0) tagmode=-11;
00230 tagmd = tagmode;
00231 mass_bc = mass_bcgg;
00232 delE_tag = delE_tag_temp;
00233 cqtm = -1.0*cqtm_temp;
00234
00235
00236
00237
00238
00239 iGoodtag.push_back(ika_temp);
00240 iGoodtag.push_back(ipi_temp);
00241
00242 iGamtag.push_back(9999);
00243 iGamtag.push_back(9999);
00244 iGamtag.push_back(9999);
00245 iGamtag.push_back(9999);
00246
00247 ptag = pddd_temp;
00248
00249 kpimd = true;
00250
00251 }
00252 }