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00023 #include "SD0TagAlg/Kk.h"
00024 #include "SD0TagAlg/SingleBase.h"
00025
00026 Kk::Kk()
00027 {}
00028
00029 Kk::~Kk()
00030 {}
00031
00032 void Kk::MTotal(double event,SmartDataPtr<EvtRecTrackCol> evtRecTrkCol, Vint iGood,Vint
00033 iGam, double Ebeam, int PID_flag, int Charge_candidate_D)
00034 {
00035
00036 int nGood=iGood.size();
00037 int nGam=iGam.size();
00038
00039 iGoodtag.clear();
00040 iGamtag.clear();
00041
00042 double mass_bcgg, delE_tag_temp;
00043 int m_chargetag, m_chargek1,m_chargek2;
00044 int ika1_temp,ika2_temp,ipi2_temp,ipi3_temp;
00045 HepLorentzVector kmfit1,kmfit2,kmfit3,kmfit4,pddd;
00046
00047 HepLorentzVector pddd_temp;
00048 IDataProviderSvc* eventSvc = NULL;
00049 Gaudi::svcLocator()->service("EventDataSvc", eventSvc);
00050 SmartDataPtr<EvtRecEvent> evtRecEvent(eventSvc,EventModel::EvtRec::EvtRecEvent);
00051 SmartDataPtr<Event::EventHeader> eventHeader(eventSvc,"/Event/EventHeader");
00052
00053 int runNo=eventHeader->runNumber();
00054 int rec=eventHeader->eventNumber();
00055
00056 double xecm=2*Ebeam;
00057
00058 kkmd=false;
00059 double tagmode=0;
00060
00061 if((evtRecEvent->totalCharged() < 2)){ return; }
00062
00063 double ecms = xecm;
00064
00065 ISimplePIDSvc* simple_pid;
00066 Gaudi::svcLocator()->service("SimplePIDSvc", simple_pid);
00067
00068 double deltaE_tem = 0.20;
00069 int ncount1 = 0;
00070
00071 Hep3Vector xorigin(0,0,0);
00072 IVertexDbSvc* vtxsvc;
00073 Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc);
00074 if(vtxsvc->isVertexValid())
00075 {
00076 double* dbv = vtxsvc->PrimaryVertex();
00077 double* vv = vtxsvc->SigmaPrimaryVertex();
00078 xorigin.setX(dbv[0]);
00079 xorigin.setY(dbv[1]);
00080 xorigin.setZ(dbv[2]);
00081 }
00082
00083 double xv=xorigin.x();
00084 double yv=xorigin.y();
00085 double zv=xorigin.z();
00086
00087 HepPoint3D point0(0.,0.,0.);
00088 HepPoint3D IP(xorigin[0],xorigin[1],xorigin[2]);
00090
00091 for(int i = 0; i < evtRecEvent->totalCharged(); i++) {
00092 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + i;
00093
00094 int ika1= (*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() < 0.0 || simple_pid->probKaon() < simple_pid->probPion()) continue;
00122 }
00124 WTrackParameter kap(xmass[3],mdcKalTrk1->getZHelixK(),mdcKalTrk1->getZErrorK() );
00125
00126
00127
00128
00129 for(int j = 0; j< evtRecEvent->totalCharged();j++) {
00130 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + j;
00131
00132 int ika2= (*itTrk)->trackId();
00133 if(ika1==ika2) continue;
00134
00135 if(!(*itTrk)->isMdcKalTrackValid()) continue;
00136 RecMdcKalTrack* mdcKalTrk2 = (*itTrk)->mdcKalTrack();
00137 RecMdcKalTrack::setPidType(RecMdcKalTrack::kaon);
00138
00139 m_chargek2=mdcKalTrk2->charge();
00140 if((m_chargek1 + m_chargek2) != 0) continue;
00141
00143 HepVector a2 = mdcKalTrk2->getZHelixK();
00144 HepSymMatrix Ea2 = mdcKalTrk2->getZErrorK();
00145 VFHelix helixip3_2(point0,a2,Ea2);
00146 helixip3_2.pivot(IP);
00147 HepVector vecipa2 = helixip3_2.a();
00148
00149 double dr2 = fabs(vecipa2[0]);
00150 double dz2 = fabs(vecipa2[3]);
00151 double costheta2 = cos(mdcKalTrk2->theta());
00152 if ( dr2 >= 1.0) continue;
00153 if ( dz2 >= 10.0) continue;
00154 if ( fabs(costheta2) >= 0.93) continue;
00156 if(PID_flag == 5) {
00157 simple_pid->preparePID(*itTrk);
00158 if(simple_pid->probKaon() < 0.0 || simple_pid->probKaon() < simple_pid->probPion()) continue;
00159 }
00161 WTrackParameter kam(xmass[3],mdcKalTrk2->getZHelixK(),mdcKalTrk2->getZErrorK() );
00162
00163
00164
00166 HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z());
00167 HepSymMatrix Evx(3, 0);
00168 double bx = 1E+6; Evx[0][0] = bx*bx;
00169 double by = 1E+6; Evx[1][1] = by*by;
00170 double bz = 1E+6; Evx[2][2] = bz*bz;
00171 VertexParameter vxpar; vxpar.setVx(vx); vxpar.setEvx(Evx);
00173
00174 VertexFit* vtxfit = VertexFit::instance();
00175 vtxfit->init();
00176 vtxfit->AddTrack(0, kap);
00177 vtxfit->AddTrack(1, kam);
00178 vtxfit->AddVertex(0, vxpar, 0, 1);
00179 if(!vtxfit->Fit(0)) continue;
00180 vtxfit->Swim(0);
00181
00182 WTrackParameter wkap = vtxfit->wtrk(0);
00183 WTrackParameter wkam = vtxfit->wtrk(1);
00184
00185 HepVector kap_val = HepVector(7,0);
00186 kap_val = wkap.w();
00187 HepVector kam_val = HepVector(7,0);
00188 kam_val = wkam.w();
00189
00190 HepLorentzVector P_KAP(kap_val[0],kap_val[1],kap_val[2],kap_val[3]);
00191 HepLorentzVector P_KAM(kam_val[0],kam_val[1],kam_val[2],kam_val[3]);
00192
00193 P_KAP.boost(-0.011,0,0);
00194 P_KAM.boost(-0.011,0,0);
00195 pddd = P_KAP + P_KAM;
00196
00197 double pkk=pddd.rho();
00198
00199 double temp1 = (ecms/2)*(ecms/2)-pkk*pkk;
00200 if(temp1<0) temp1 =0;
00201 double mass_bc_tem = sqrt(temp1);
00202 if(mass_bc_tem < 1.82 || mass_bc_tem > 1.89) continue;
00203
00204 double delE_tag_tag = ecms/2-pddd.e();
00205
00206 if(fabs(delE_tag_tag)<deltaE_tem){
00207 deltaE_tem = fabs(delE_tag_tag);
00208 delE_tag_temp = delE_tag_tag;
00209 mass_bcgg = mass_bc_tem;
00210
00211 pddd_temp = pddd;
00212 ika1_temp=ika1;
00213 ika2_temp=ika2;
00214 ncount1 = 1;
00215 }
00216 }
00217 }
00218
00219 if(ncount1 == 1){
00220 tagmode=15;
00221 if(m_chargetag<0) tagmode=-15;
00222 tagmd=tagmode;
00223 mass_bc = mass_bcgg;
00224 delE_tag = delE_tag_temp;
00225 cqtm = -0.0;
00226
00227 iGoodtag.push_back(ika1_temp);
00228 iGoodtag.push_back(ika2_temp);
00229 iGamtag.push_back(9999);
00230 iGamtag.push_back(9999);
00231 iGamtag.push_back(9999);
00232 iGamtag.push_back(9999);
00233
00234 ptag = pddd_temp;
00235
00236 kkmd = true;
00237 }
00238 }
00239
00240
00241