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00023 #include "SD0TagAlg/K3pipi0.h"
00024 #include "SD0TagAlg/SingleBase.h"
00025
00026 K3pipi0::K3pipi0()
00027 {}
00028
00029 K3pipi0::~K3pipi0()
00030 {}
00031
00032
00033 void K3pipi0::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 iGoodtag.clear();
00040 iGamtag.clear();
00041
00042 double mass_bcgg, delE_tag_temp;
00043 int m_chargetag,m_chargek,m_chargepi1,m_chargepi2,m_chargepi3;
00044 int ika_temp,ipi1_temp,ipi2_temp,ipi3_temp,ipi4_temp, iGam1_temp, iGam2_temp;
00045 HepLorentzVector kmfit1,kmfit2,kmfit3,kmfit4,pddd;
00046
00047 int cqtm_temp;
00048 HepLorentzVector pddd_temp;
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 k3pipi0md = false;
00060 double tagmode=0;
00061
00062 if((evtRecEvent->totalCharged() < 4 || nGam <2)){ 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 HepLorentzVector p2gfit;
00073 HepLorentzVector p2gg;
00074
00075 Hep3Vector xorigin(0,0,0);
00076 IVertexDbSvc* vtxsvc;
00077 Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc);
00078 if(vtxsvc->isVertexValid())
00079 {
00080 double* dbv = vtxsvc->PrimaryVertex();
00081 double* vv = vtxsvc->SigmaPrimaryVertex();
00082 xorigin.setX(dbv[0]);
00083 xorigin.setY(dbv[1]);
00084 xorigin.setZ(dbv[2]);
00085 }
00086
00087 double xv=xorigin.x();
00088 double yv=xorigin.y();
00089 double zv=xorigin.z();
00090
00091 HepPoint3D point0(0.,0.,0.);
00092 HepPoint3D IP(xorigin[0],xorigin[1],xorigin[2]);
00093
00094 HepLorentzVector ptrk1_temp, ptrk2_temp, ptrk3_temp, ptrk4_temp, ptrk5_temp, ptrk6_temp, ptrk7_temp;
00096 for(int i = 0; i < evtRecEvent->totalCharged(); i++) {
00097 EvtRecTrackIterator itTrk1 = evtRecTrkCol->begin() + i;
00098
00099 int ika= (*itTrk1)->trackId();
00100
00101 if(!(*itTrk1)->isMdcKalTrackValid()) continue;
00102 RecMdcKalTrack* mdcKalTrk1 = (*itTrk1)->mdcKalTrack();
00103 RecMdcKalTrack::setPidType(RecMdcKalTrack::kaon);
00105 m_chargek=mdcKalTrk1->charge();
00106 if(Charge_candidate_D != 0) {
00107 if(m_chargek != -Charge_candidate_D) continue;
00108 }
00109 if(Charge_candidate_D == 0) {
00110 if(abs(m_chargek) != 1) continue;
00111 }
00113 HepVector a1 = mdcKalTrk1->getZHelixK();
00114 HepSymMatrix Ea1 = mdcKalTrk1->getZErrorK();
00115 VFHelix helixip3_1(point0,a1,Ea1);
00116 helixip3_1.pivot(IP);
00117 HepVector vecipa1 = helixip3_1.a();
00118
00119 double dr1 = fabs(vecipa1[0]);
00120 double dz1 = fabs(vecipa1[3]);
00121 double costheta1 = cos(mdcKalTrk1->theta());
00122 if ( dr1 >= 1.0) continue;
00123 if ( dz1 >= 10.0) continue;
00124 if ( fabs(costheta1) >= 0.93) continue;
00126 if(PID_flag == 5) {
00127 simple_pid->preparePID(*itTrk1);
00128 if(simple_pid->probKaon() < 0.0 ||simple_pid->probKaon() < simple_pid->probPion()) continue;
00129 }
00130
00132
00133 WTrackParameter kam(xmass[3],mdcKalTrk1->getZHelixK(),mdcKalTrk1->getZErrorK() );
00134
00135
00136
00137
00138 for(int j = 0; j< evtRecEvent->totalCharged();j++) {
00139 EvtRecTrackIterator itTrk2 = evtRecTrkCol->begin() + j;
00140
00141 int ipi1= (*itTrk2)->trackId();
00142 if(ipi1==ika) continue;
00143
00144 if(!(*itTrk2)->isMdcKalTrackValid()) continue;
00145 RecMdcKalTrack* mdcKalTrk2 = (*itTrk2)->mdcKalTrack();
00146 RecMdcKalTrack::setPidType(RecMdcKalTrack::pion);
00148 m_chargepi1=mdcKalTrk2->charge();
00149 if((m_chargek + m_chargepi1) != 0) continue;
00151 HepVector a2 = mdcKalTrk2->getZHelix();
00152 HepSymMatrix Ea2 = mdcKalTrk2->getZError();
00153 VFHelix helixip3_2(point0,a2,Ea2);
00154 helixip3_2.pivot(IP);
00155 HepVector vecipa2 = helixip3_2.a();
00156
00157 double dr2 = fabs(vecipa2[0]);
00158 double dz2 = fabs(vecipa2[3]);
00159 double costheta2 = cos(mdcKalTrk2->theta());
00160 if ( dr2 >= 1.0) continue;
00161 if ( dz2 >= 10.0) continue;
00162 if ( fabs(costheta2) >= 0.93) continue;
00164 if(PID_flag == 5) {
00165 simple_pid->preparePID(*itTrk2);
00166 if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue;
00167 }
00169 WTrackParameter pip1(xmass[2],mdcKalTrk2->getZHelix(),mdcKalTrk2->getZError() );
00170
00171
00172
00173
00174 for(int k = 0; k< evtRecEvent->totalCharged(); k++) {
00175 EvtRecTrackIterator itTrk3 = evtRecTrkCol->begin() + k;
00176
00177 int ipi2= (*itTrk3)->trackId();
00178 if(ipi2==ika || ipi2==ipi1) continue;
00179
00180 if(!(*itTrk3)->isMdcKalTrackValid()) continue;
00181 RecMdcKalTrack* mdcKalTrk3 = (*itTrk3)->mdcKalTrack();
00182 RecMdcKalTrack::setPidType (RecMdcKalTrack::pion);
00184 m_chargepi2=mdcKalTrk3->charge();
00185 if((m_chargek + m_chargepi2) != 0) continue;
00187 HepVector a3 = mdcKalTrk3->getZHelix();
00188 HepSymMatrix Ea3 = mdcKalTrk3->getZError();
00189 VFHelix helixip3_3(point0,a3,Ea3);
00190 helixip3_3.pivot(IP);
00191 HepVector vecipa3 = helixip3_3.a();
00192
00193 double dr3 = fabs(vecipa3[0]);
00194 double dz3 = fabs(vecipa3[3]);
00195 double costheta3 = cos(mdcKalTrk3->theta());
00196 if ( dr3 >= 1.0) continue;
00197 if ( dz3 >= 10.0) continue;
00198 if ( fabs(costheta3) >= 0.93) continue;
00200 if(PID_flag == 5) {
00201 simple_pid->preparePID(*itTrk3);
00202 if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue;
00203 }
00205 WTrackParameter pip2(xmass[2],mdcKalTrk3->getZHelix(),mdcKalTrk3->getZError() );
00206
00207
00208
00209
00210 for(int l = 0; l< evtRecEvent->totalCharged();l++) {
00211 EvtRecTrackIterator itTrk4 = evtRecTrkCol->begin() + l;
00212
00213 int ipi3= (*itTrk4)->trackId();
00214 if(ipi3==ika || ipi3==ipi1 || ipi3==ipi2 ) continue;
00215
00216 if(!(*itTrk4)->isMdcKalTrackValid()) continue;
00217 RecMdcKalTrack* mdcKalTrk4 = (*itTrk4)->mdcKalTrack();
00218 RecMdcKalTrack::setPidType (RecMdcKalTrack::pion);
00220 m_chargepi3=mdcKalTrk4->charge();
00221 if((m_chargepi2 + m_chargepi3) != 0) continue;
00223 HepVector a4 = mdcKalTrk4->getZHelix();
00224 HepSymMatrix Ea4 = mdcKalTrk4->getZError();
00225 VFHelix helixip3_4(point0,a4,Ea4);
00226 helixip3_4.pivot(IP);
00227 HepVector vecipa4 = helixip3_4.a();
00228
00229 double dr4 = fabs(vecipa4[0]);
00230 double dz4 = fabs(vecipa4[3]);
00231 double costheta4 = cos(mdcKalTrk4->theta());
00232 if ( dr4 >= 1.0) continue;
00233 if ( dz4 >= 10.0) continue;
00234 if ( fabs(costheta4) >= 0.93) continue;
00236 if(PID_flag == 5) {
00237 simple_pid->preparePID(*itTrk4);
00238 if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue;
00239 }
00241 WTrackParameter pip3(xmass[2],mdcKalTrk4->getZHelix(),mdcKalTrk4->getZError() );
00242
00243
00244 for(int m = 0; m < nGam-1; m++) {
00245 if(iGam[m]==-1) continue;
00246 RecEmcShower *g1Trk =(*(evtRecTrkCol->begin()+iGam[m]))->emcShower();
00247 double eraw1 = g1Trk->energy();
00248 double phi1 = g1Trk->phi();
00249 double the1 = g1Trk->theta();
00250 HepLorentzVector ptrkg1,ptrkg10,ptrkg12;
00251 ptrkg1.setPx(eraw1*sin(the1)*cos(phi1));
00252 ptrkg1.setPy(eraw1*sin(the1)*sin(phi1));
00253 ptrkg1.setPz(eraw1*cos(the1));
00254 ptrkg1.setE(eraw1);
00255 ptrkg10 = ptrkg1;
00256 ptrkg12 = ptrkg1.boost(-0.011,0,0);
00257
00258 for(int n = m+1; n < nGam; n++) {
00259 if(iGam[n]==-1) continue;
00260 RecEmcShower *g2Trk =(*(evtRecTrkCol->begin()+iGam[n]))->emcShower();
00261 double eraw2 = g2Trk->energy();
00262 double phi2 = g2Trk->phi();
00263 double the2 = g2Trk->theta();
00264 HepLorentzVector ptrkg2,ptrkg20,ptrkg22;
00265 ptrkg2.setPx(eraw2*sin(the2)*cos(phi2));
00266 ptrkg2.setPy(eraw2*sin(the2)*sin(phi2));
00267 ptrkg2.setPz(eraw2*cos(the2));
00268 ptrkg2.setE(eraw2);
00269 ptrkg20 = ptrkg2;
00270 ptrkg22 = ptrkg2.boost(-0.011,0,0);
00271
00273 HepLorentzVector ptrkpi0;
00274 ptrkpi0 = ptrkg12+ptrkg22;
00275 double m_xmpi0_tem = ptrkpi0.mag();
00276 if(m_xmpi0_tem>0.150||m_xmpi0_tem<0.115) continue;
00278 bool IsEndcap1 = false; bool IsEndcap2 = false;
00279 if(fabs(cos(the1)) > 0.86 && fabs(cos(the1)) < 0.92) IsEndcap1 = true;
00280 if(fabs(cos(the2)) > 0.86 && fabs(cos(the2)) < 0.92) IsEndcap2 = true;
00281 if(IsEndcap1 && IsEndcap2) continue;
00283
00284 KalmanKinematicFit * kmfit = KalmanKinematicFit::instance();
00285 kmfit->init();
00286 kmfit->setChisqCut(2500);
00287 kmfit->AddTrack(0, 0.0 , g1Trk);
00288 kmfit->AddTrack(1, 0.0 , g2Trk);
00289 kmfit->AddResonance(0, mpi0, 0, 1);
00290
00291 kmfit->Fit(0);
00292 kmfit->BuildVirtualParticle(0);
00293
00294 double pi0_chisq = kmfit->chisq(0);
00295 if ( pi0_chisq >= 2500) continue;
00296 HepLorentzVector p2gfit = kmfit->pfit(0) + kmfit->pfit(1);
00297 p2gfit.boost(-0.011,0,0);
00298
00300 HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z());
00301 HepSymMatrix Evx(3, 0);
00302 double bx = 1E+6; Evx[0][0] = bx*bx;
00303 double by = 1E+6; Evx[1][1] = by*by;
00304 double bz = 1E+6; Evx[2][2] = bz*bz;
00305 VertexParameter vxpar; vxpar.setVx(vx); vxpar.setEvx(Evx);
00307
00308 VertexFit* vtxfit = VertexFit::instance();
00309 vtxfit->init();
00310 vtxfit->AddTrack(0, kam);
00311 vtxfit->AddTrack(1, pip1);
00312 vtxfit->AddTrack(2, pip2);
00313 vtxfit->AddTrack(3, pip3);
00314 vtxfit->AddVertex(0, vxpar, 0, 1, 2, 3);
00315 if(!vtxfit->Fit(0)) continue;
00316 vtxfit->Swim(0);
00317
00318 WTrackParameter wkam = vtxfit->wtrk(0);
00319 WTrackParameter wpip1 = vtxfit->wtrk(1);
00320 WTrackParameter wpip2 = vtxfit->wtrk(2);
00321 WTrackParameter wpip3 = vtxfit->wtrk(3);
00322
00323 HepVector kam_val = HepVector(7,0);
00324 HepVector pip1_val = HepVector(7,0);
00325 HepVector pip2_val = HepVector(7,0);
00326 HepVector pip3_val = HepVector(7,0);
00327 kam_val = wkam.w();
00328 pip1_val = wpip1.w();
00329 pip2_val = wpip2.w();
00330 pip3_val = wpip3.w();
00331
00332 HepLorentzVector P_KAM(kam_val[0],kam_val[1],kam_val[2],kam_val[3]);
00333 HepLorentzVector P_PIP1(pip1_val[0],pip1_val[1],pip1_val[2],pip1_val[3]);
00334 HepLorentzVector P_PIP2(pip2_val[0],pip2_val[1],pip2_val[2],pip2_val[3]);
00335 HepLorentzVector P_PIP3(pip3_val[0],pip3_val[1],pip3_val[2],pip3_val[3]);
00336
00337 P_KAM.boost(-0.011,0,0);
00338 P_PIP1.boost(-0.011,0,0);
00339 P_PIP2.boost(-0.011,0,0);
00340 P_PIP3.boost(-0.011,0,0);
00341 pddd = P_KAM + P_PIP1 + P_PIP2 + P_PIP3 + p2gfit;
00342
00343 double pk3pipi0=pddd.rho();
00344
00345 double temp1 = (ecms/2)*(ecms/2)-pk3pipi0*pk3pipi0 ;
00346 if(temp1<0) temp1 =0;
00347 double mass_bc_tem = sqrt(temp1);
00348 if(mass_bc_tem < 1.82 || mass_bc_tem > 1.89) continue;
00349
00350 double delE_tag_tag = ecms/2-pddd.e();
00351
00352 if(fabs(delE_tag_tag)<deltaE_tem) {
00353 deltaE_tem = fabs(delE_tag_tag);
00354 delE_tag_temp = delE_tag_tag;
00355 mass_bcgg = mass_bc_tem;
00356
00357 pddd_temp = pddd;
00358 cqtm_temp = m_chargek;
00359
00360 ika_temp=ika;
00361 ipi1_temp=ipi1;
00362 ipi2_temp=ipi2;
00363 ipi3_temp=ipi3;
00364 iGam1_temp = iGam[m];
00365 iGam2_temp = iGam[n];
00366
00367 ncount1 = 1;
00368
00369
00370 }
00371 }
00372 }
00373 }
00374 }
00375 }
00376 }
00377 if(ncount1 == 1){
00378 tagmode=24;
00379 if(cqtm_temp<0) tagmode=-24;
00380 tagmd=tagmode;
00381 mass_bc = mass_bcgg;
00382 delE_tag = delE_tag_temp;
00383 cqtm = -1.0*cqtm_temp;
00384
00385 iGoodtag.push_back(ika_temp);
00386 iGoodtag.push_back(ipi1_temp);
00387 iGoodtag.push_back(ipi2_temp);
00388 iGoodtag.push_back(ipi3_temp);
00389
00390 iGamtag.push_back(iGam1_temp);
00391 iGamtag.push_back(iGam2_temp);
00392 iGamtag.push_back(9999);
00393 iGamtag.push_back(9999);
00394
00395 ptag = pddd_temp;
00396
00397 k3pipi0md = true;
00398
00399 }
00400 }
00401
