#include <Kpipi0.h>
Public Member Functions | |
Kpipi0 () | |
~Kpipi0 () | |
bool | Getkpipi0md () |
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 | kpipi0md |
double | tagmd |
double | mass_bc |
double | cqtm |
double | delE_tag |
Vint | iGoodtag |
HepLorentzVector | ptag |
Vint | iGamtag |
Definition at line 20 of file Kpipi0.h.
Kpipi0::Kpipi0 | ( | ) |
Kpipi0::~Kpipi0 | ( | ) |
double Kpipi0::GetCQtm | ( | ) | [inline] |
Definition at line 30 of file Kpipi0.h.
References cqtm.
Referenced by Sing::Mdset().
00030 { return cqtm; }
double Kpipi0::GetdelE_tag | ( | ) | [inline] |
Definition at line 31 of file Kpipi0.h.
References delE_tag.
Referenced by Sing::Mdset().
00031 { return delE_tag; }
bool Kpipi0::Getkpipi0md | ( | ) | [inline] |
Definition at line 27 of file Kpipi0.h.
References kpipi0md.
Referenced by Sing::Mdset().
00027 { return kpipi0md; }
double Kpipi0::Getmass_bc | ( | ) | [inline] |
Definition at line 29 of file Kpipi0.h.
References mass_bc.
Referenced by Sing::Mdset().
00029 { return mass_bc; }
Vint Kpipi0::GettagGam1 | ( | ) | [inline] |
Definition at line 34 of file Kpipi0.h.
References iGamtag.
Referenced by Sing::Mdset().
00034 { return iGamtag; }
double Kpipi0::Gettagmd | ( | ) | [inline] |
Definition at line 28 of file Kpipi0.h.
References tagmd.
Referenced by Sing::Mdset().
00028 { return tagmd; }
HepLorentzVector Kpipi0::Gettagp1 | ( | ) | [inline] |
Definition at line 33 of file Kpipi0.h.
References ptag.
Referenced by Sing::Mdset().
00033 { return ptag; }
Vint Kpipi0::Gettagtrk1 | ( | ) | [inline] |
Definition at line 32 of file Kpipi0.h.
References iGoodtag.
Referenced by Sing::Mdset().
00032 { return iGoodtag; }
void Kpipi0::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 Kpipi0.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, kpipi0md, mass_bc, mpi0, KalmanKinematicFit::pfit(), DstEmcShower::phi(), phi1, phi2, DstMdcKalTrack::pion, VFHelix::pivot(), ISimplePIDSvc::preparePID(), IVertexDbSvc::PrimaryVertex(), ISimplePIDSvc::probKaon(), ISimplePIDSvc::probPion(), ptag, runNo, 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().
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, iGam1_temp, iGam2_temp; 00046 HepLorentzVector pddd, pddd_temp; 00047 00048 int cqtm_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 kpipi0md=false; 00060 double tagmode=0; 00061 00062 if((evtRecEvent->totalCharged() < 2||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 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 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, ptrk3_temp, ptrk4_temp, ptrk5_temp; 00094 HepLorentzVector p2gfit; 00095 HepLorentzVector p2gg; 00096 for(int i = 0; i < evtRecEvent->totalCharged(); i++) { 00097 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + i; 00098 00099 int ika= (*itTrk)->trackId(); 00100 00101 if(!(*itTrk)->isMdcKalTrackValid()) continue; 00102 RecMdcKalTrack* mdcKalTrk1 = (*itTrk)->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; 00125 00127 if(PID_flag == 5) { 00128 simple_pid->preparePID(*itTrk); 00129 if(simple_pid->probKaon() < 0.0 || simple_pid->probKaon() < simple_pid->probPion()) continue; 00130 } 00132 00133 WTrackParameter kam(xmass[3],mdcKalTrk1->getZHelixK(),mdcKalTrk1->getZErrorK() ); 00134 00135 // 00136 // select pi 00137 // 00138 for(int j = 0; j< evtRecEvent->totalCharged();j++) { 00139 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + j; 00140 00141 int ipi= (*itTrk)->trackId(); 00142 if(ipi==ika) continue; 00143 00144 if(!(*itTrk)->isMdcKalTrackValid()) continue; 00145 RecMdcKalTrack* mdcKalTrk2 = (*itTrk)->mdcKalTrack(); 00146 RecMdcKalTrack::setPidType(RecMdcKalTrack::pion); 00148 m_chargepi=mdcKalTrk2->charge(); 00149 if((m_chargek + m_chargepi) != 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(*itTrk); 00166 if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue; 00167 } 00169 00170 WTrackParameter pip(xmass[2],mdcKalTrk2->getZHelix(),mdcKalTrk2->getZError() ); 00171 00172 for(int m = 0; m < nGam-1; m++) { 00173 if(iGam[m]==-1) continue; 00174 RecEmcShower *g1Trk = (*(evtRecTrkCol->begin()+iGam[m]))->emcShower(); 00175 double eraw1 = g1Trk->energy(); 00176 double phi1 = g1Trk->phi(); 00177 double the1 = g1Trk->theta(); 00178 HepLorentzVector ptrkg1,ptrkg10,ptrkg12; 00179 ptrkg1.setPx(eraw1*sin(the1)*cos(phi1)); 00180 ptrkg1.setPy(eraw1*sin(the1)*sin(phi1)); 00181 ptrkg1.setPz(eraw1*cos(the1)); 00182 ptrkg1.setE(eraw1); 00183 ptrkg10 = ptrkg1; 00184 ptrkg12 = ptrkg1.boost(-0.011,0,0); 00185 00186 for(int n = m+1; n < nGam; n++) { 00187 if(iGam[n]==-1) continue; 00188 RecEmcShower *g2Trk = (*(evtRecTrkCol->begin()+iGam[n]))->emcShower(); 00189 double eraw2 = g2Trk->energy(); 00190 double phi2 = g2Trk->phi(); 00191 double the2 = g2Trk->theta(); 00192 HepLorentzVector ptrkg2,ptrkg20,ptrkg22; 00193 ptrkg2.setPx(eraw2*sin(the2)*cos(phi2)); 00194 ptrkg2.setPy(eraw2*sin(the2)*sin(phi2)); 00195 ptrkg2.setPz(eraw2*cos(the2)); 00196 ptrkg2.setE(eraw2); 00197 ptrkg20 = ptrkg2; 00198 ptrkg22 = ptrkg2.boost(-0.011,0,0); 00199 00201 HepLorentzVector ptrkpi0; 00202 ptrkpi0 = ptrkg12+ptrkg22; 00203 double m_xmpi0_tem = ptrkpi0.m(); 00204 if(m_xmpi0_tem>0.150||m_xmpi0_tem<0.115) continue; 00206 bool IsEndcap1 = false; bool IsEndcap2 = false; 00207 if(fabs(cos(the1)) > 0.86 && fabs(cos(the1)) < 0.92) IsEndcap1 = true; 00208 if(fabs(cos(the2)) > 0.86 && fabs(cos(the2)) < 0.92) IsEndcap2 = true; 00209 if(IsEndcap1 && IsEndcap2) continue; 00211 KalmanKinematicFit * kmfit = KalmanKinematicFit::instance(); 00212 kmfit->init(); 00213 kmfit->setChisqCut(2500); 00214 kmfit->AddTrack(0, 0.0, g1Trk); 00215 kmfit->AddTrack(1, 0.0, g2Trk); 00216 kmfit->AddResonance(0, mpi0, 0, 1); 00217 00218 kmfit->Fit(0); // Perform fit 00219 kmfit->BuildVirtualParticle(0); 00220 00221 double pi0_chisq = kmfit->chisq(0); 00222 if ( pi0_chisq >= 2500) continue; 00223 HepLorentzVector p2gfit = kmfit->pfit(0) + kmfit->pfit(1); 00224 p2gfit.boost(-0.011,0,0); 00225 00227 HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z()); 00228 HepSymMatrix Evx(3, 0); 00229 double bx = 1E+6; Evx[0][0] = bx*bx; 00230 double by = 1E+6; Evx[1][1] = by*by; 00231 double bz = 1E+6; Evx[2][2] = bz*bz; 00232 VertexParameter vxpar; vxpar.setVx(vx); vxpar.setEvx(Evx); 00234 00235 VertexFit* vtxfit = VertexFit::instance(); 00236 vtxfit->init(); 00237 vtxfit->AddTrack(0, kam); 00238 vtxfit->AddTrack(1, pip); 00239 vtxfit->AddVertex(0, vxpar, 0, 1); 00240 if(!vtxfit->Fit(0)) continue; 00241 vtxfit->Swim(0); 00242 00243 WTrackParameter wkam = vtxfit->wtrk(0); 00244 WTrackParameter wpip = vtxfit->wtrk(1); 00245 00246 HepVector kam_val = HepVector(7,0); 00247 kam_val = wkam.w(); 00248 HepVector pip_val = HepVector(7,0); 00249 pip_val = wpip.w(); 00250 00251 HepLorentzVector P_KAM(kam_val[0],kam_val[1],kam_val[2],kam_val[3]); 00252 HepLorentzVector P_PIP(pip_val[0],pip_val[1],pip_val[2],pip_val[3]); 00253 00254 P_KAM.boost(-0.011,0,0); 00255 P_PIP.boost(-0.011,0,0); 00256 pddd = P_KAM + P_PIP + p2gfit; 00257 00258 double pkpipi0=pddd.rho(); 00259 00260 double temp1 = (ecms/2)*(ecms/2)-pkpipi0*pkpipi0 ; 00261 if(temp1<0) temp1 =0; 00262 double mass_bc_tem = sqrt(temp1); 00263 if(mass_bc_tem < 1.82 || mass_bc_tem > 1.89) continue; 00264 00265 double delE_tag_tag = ecms/2-pddd.e(); 00266 00267 00268 if(fabs(delE_tag_tag)<deltaE_tem) { 00269 deltaE_tem = fabs(delE_tag_tag); 00270 delE_tag_temp = delE_tag_tag; 00271 mass_bcgg = mass_bc_tem; 00272 00273 pddd_temp = pddd; 00274 cqtm_temp = m_chargek; 00275 00276 ika_temp=ika; 00277 ipi_temp=ipi; 00278 00279 iGam1_temp = iGam[m]; 00280 iGam2_temp = iGam[n]; 00281 ncount1 = 1; 00282 00283 } 00284 } 00285 } 00286 } 00287 } 00288 00289 if(ncount1 == 1){ 00290 tagmode=12; 00291 if(cqtm_temp <0) tagmode=-12; 00292 tagmd=tagmode; 00293 mass_bc = mass_bcgg; 00294 delE_tag = delE_tag_temp; 00295 cqtm = -1.0*cqtm_temp; 00296 00297 iGoodtag.push_back(ipi_temp); 00298 iGoodtag.push_back(ika_temp); 00299 00300 iGamtag.push_back(iGam1_temp); 00301 iGamtag.push_back(iGam2_temp); 00302 iGamtag.push_back(9999); 00303 iGamtag.push_back(9999); 00304 00305 ptag = pddd_temp; 00306 00307 kpipi0md = true; 00308 00309 } 00310 }
double Kpipi0::cqtm [private] |
double Kpipi0::delE_tag [private] |
Vint Kpipi0::iGamtag [private] |
Vint Kpipi0::iGoodtag [private] |
bool Kpipi0::kpipi0md [private] |
double Kpipi0::mass_bc [private] |
HepLorentzVector Kpipi0::ptag [private] |
double Kpipi0::tagmd [private] |