#include <K0pipipi0.h>
Public Member Functions | |
K0pipipi0 () | |
~K0pipipi0 () | |
bool | GetK0pipipi0md () |
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 | k0pipipi0md |
double | tagmd |
double | mass_bc |
double | cqtm |
double | delE_tag |
Vint | iGoodtag |
HepLorentzVector | ptag |
Vint | iGamtag |
Definition at line 20 of file K0pipipi0.h.
K0pipipi0::K0pipipi0 | ( | ) |
K0pipipi0::~K0pipipi0 | ( | ) |
double K0pipipi0::GetCQtm | ( | ) | [inline] |
Definition at line 30 of file K0pipipi0.h.
References cqtm.
Referenced by Sing::Mdset().
00030 { return cqtm; }
double K0pipipi0::GetdelE_tag | ( | ) | [inline] |
Definition at line 31 of file K0pipipi0.h.
References delE_tag.
Referenced by Sing::Mdset().
00031 { return delE_tag; }
bool K0pipipi0::GetK0pipipi0md | ( | ) | [inline] |
Definition at line 27 of file K0pipipi0.h.
References k0pipipi0md.
Referenced by Sing::Mdset().
00027 { return k0pipipi0md; }
double K0pipipi0::Getmass_bc | ( | ) | [inline] |
Definition at line 29 of file K0pipipi0.h.
References mass_bc.
Referenced by Sing::Mdset().
00029 { return mass_bc; }
Vint K0pipipi0::GettagGam1 | ( | ) | [inline] |
Definition at line 34 of file K0pipipi0.h.
References iGamtag.
Referenced by Sing::Mdset().
00034 { return iGamtag; }
double K0pipipi0::Gettagmd | ( | ) | [inline] |
Definition at line 28 of file K0pipipi0.h.
References tagmd.
Referenced by Sing::Mdset().
00028 { return tagmd; }
HepLorentzVector K0pipipi0::Gettagp1 | ( | ) | [inline] |
Definition at line 33 of file K0pipipi0.h.
References ptag.
Referenced by Sing::Mdset().
00033 { return ptag; }
Vint K0pipipi0::Gettagtrk1 | ( | ) | [inline] |
Definition at line 32 of file K0pipipi0.h.
References iGoodtag.
Referenced by Sing::Mdset().
00032 { return iGoodtag; }
void K0pipipi0::MTotal | ( | double | event, | |
SmartDataPtr< EvtRecTrackCol > | evtRecTrkCol, | |||
Vint | iGood, | |||
Vint | iGam, | |||
double | Ebeam, | |||
int | PID_flag, | |||
int | Charge_candidate_D | |||
) |
Definition at line 34 of file K0pipipi0.cxx.
References VFHelix::a(), abs, KalmanKinematicFit::AddResonance(), TrackPool::AddTrack(), VertexFit::AddVertex(), KalmanKinematicFit::BuildVirtualParticle(), VertexFit::BuildVirtualParticle(), DstMdcKalTrack::charge(), SecondVertexFit::chisq(), KalmanKinematicFit::chisq(), cos(), cqtm, SecondVertexFit::decayLength(), delE_tag, ecms, DstEmcShower::energy(), EventModel::EvtRec::EvtRecEvent, SecondVertexFit::Fit(), KalmanKinematicFit::Fit(), VertexFit::Fit(), RecMdcKalTrack::getZError(), RecMdcKalTrack::getZHelix(), genRecEmupikp::i, iGamtag, iGoodtag, SecondVertexFit::init(), KalmanKinematicFit::init(), VertexFit::init(), SecondVertexFit::instance(), KalmanKinematicFit::instance(), VertexFit::instance(), IVertexDbSvc::isVertexValid(), ganga-rec::j, k0pipipi0md, mass_bc, mpi0, SecondVertexFit::p4par(), 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(), SecondVertexFit::setPrimaryVertex(), SecondVertexFit::setVpar(), VertexParameter::setVx(), IVertexDbSvc::SigmaPrimaryVertex(), sin(), VertexFit::Swim(), tagmd, DstEmcShower::theta(), DstMdcKalTrack::theta(), VertexFit::vpar(), WTrackParameter::w(), VertexFit::wtrk(), VertexFit::wVirtualTrack(), and xmass.
Referenced by Sing::Mdset().
00036 { 00037 00038 int nGood=iGood.size(); 00039 int nGam=iGam.size(); 00040 00041 iGoodtag.clear(); 00042 iGamtag.clear(); 00043 00044 double mass_bcgg, delE_tag_temp; 00045 int m_chargetag,m_chargepi1,m_chargepi2,m_chargepi3,m_chargepi4; 00046 int ik1_temp,ipi1_temp,ipi2_temp,ipi3_temp,ipi4_temp, iGam1_temp, iGam2_temp; 00047 HepLorentzVector pddd; 00048 HepLorentzVector pddd_temp; 00049 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 k0pipipi0md=false; 00061 double tagmode=0; 00062 00063 if((evtRecEvent->totalCharged() < 4||nGam<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 HepSymMatrix xoriginEx(3,0); 00075 IVertexDbSvc* vtxsvc; 00076 Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc); 00077 if(vtxsvc->isVertexValid()) 00078 { 00079 double* dbv = vtxsvc->PrimaryVertex(); 00080 double* vv = vtxsvc->SigmaPrimaryVertex(); 00081 xorigin.setX(dbv[0]); 00082 xorigin.setY(dbv[1]); 00083 xorigin.setZ(dbv[2]); 00084 00085 xoriginEx[0][0] = vv[0] * vv[0]; 00086 xoriginEx[1][1] = vv[1] * vv[1]; 00087 xoriginEx[2][2] = vv[2] * vv[2]; 00088 00089 } 00090 00091 double xv=xorigin.x(); 00092 double yv=xorigin.y(); 00093 double zv=xorigin.z(); 00094 00095 HepPoint3D point0(0.,0.,0.); 00096 HepPoint3D IP(xorigin[0],xorigin[1],xorigin[2]); 00098 00099 HepLorentzVector p2gfit; 00100 HepLorentzVector p2gg; 00101 00102 for(int i = 0; i < evtRecEvent->totalCharged(); i++) { 00103 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + i; 00104 00105 int ipi1= (*itTrk)->trackId(); 00106 00107 if(!(*itTrk)->isMdcKalTrackValid()) continue; 00108 RecMdcKalTrack* mdcKalTrk1 = (*itTrk)->mdcKalTrack(); 00109 RecMdcKalTrack::setPidType(RecMdcKalTrack::pion); 00110 00111 m_chargepi1=mdcKalTrk1->charge(); 00112 if(m_chargepi1 != 1) continue; 00113 00115 HepVector a1 = mdcKalTrk1->getZHelix(); 00116 HepSymMatrix Ea1 = mdcKalTrk1->getZError(); 00117 00118 VFHelix helixip3_1(point0,a1,Ea1); 00119 helixip3_1.pivot(IP); 00120 HepVector vecipa1 = helixip3_1.a(); 00121 00122 double dr1 = fabs(vecipa1[0]); 00123 double dz1 = fabs(vecipa1[3]); 00124 double costheta1 = cos(mdcKalTrk1->theta()); 00125 00126 if ( dr1 >= 15.0) continue; 00127 if ( dz1 >= 25.0) continue; 00128 if ( fabs(costheta1) >= 0.93) continue; 00130 WTrackParameter pip1(xmass[2],mdcKalTrk1->getZHelix(),mdcKalTrk1->getZError() ); 00131 00132 // 00133 // select pi2 00134 // 00135 00136 for(int j = 0; j < evtRecEvent->totalCharged();j++) { 00137 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + j; 00138 00139 int ipi2= (*itTrk)->trackId(); 00140 if(ipi1==ipi2) continue; 00141 00142 if(!(*itTrk)->isMdcKalTrackValid()) continue; 00143 RecMdcKalTrack* mdcKalTrk2 = (*itTrk)->mdcKalTrack(); 00144 RecMdcKalTrack::setPidType(RecMdcKalTrack::pion); 00145 00146 m_chargepi2=mdcKalTrk2->charge(); 00147 if((m_chargepi2 + m_chargepi1) != 0) continue; 00148 00150 HepVector a2 = mdcKalTrk2->getZHelix(); 00151 HepSymMatrix Ea2 = mdcKalTrk2->getZError(); 00152 VFHelix helixip3_2(point0,a2,Ea2); 00153 helixip3_2.pivot(IP); 00154 HepVector vecipa2 = helixip3_2.a(); 00155 00156 double dr2 = fabs(vecipa2[0]); 00157 double dz2 = fabs(vecipa2[3]); 00158 double costheta2 = cos(mdcKalTrk2->theta()); 00159 if ( dr2 >= 15.0) continue; 00160 if ( dz2 >= 25.0) continue; 00161 if ( fabs(costheta2) >= 0.93) continue; 00163 WTrackParameter pim1(xmass[2],mdcKalTrk2->getZHelix(),mdcKalTrk2->getZError() ); 00164 00165 00166 HepVector pip1_val = HepVector(7,0); 00167 HepVector pim1_val = HepVector(7,0); 00168 pip1_val = pip1.w(); 00169 pim1_val = pim1.w(); 00170 HepLorentzVector ptrktagk0(pip1_val[0]+pim1_val[0],pip1_val[1]+pim1_val[1],pip1_val[2]+pim1_val[2],pip1_val[3]+pim1_val[3]); 00171 double m_xmtagk0_tem = ptrktagk0.mag(); 00172 if(fabs(ptrktagk0.m()-0.498)>0.1) continue; 00173 00174 HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z()); 00175 HepSymMatrix Evx(3, 0); 00176 double bx = 1E+6; Evx[0][0] = bx*bx; 00177 double by = 1E+6; Evx[1][1] = by*by; 00178 double bz = 1E+6; Evx[2][2] = bz*bz; 00179 VertexParameter vxpar; vxpar.setVx(vx); vxpar.setEvx(Evx); 00180 00181 00182 VertexFit *vtxfit0 = VertexFit::instance(); 00183 vtxfit0->init(); 00184 vtxfit0->AddTrack(0, pip1); 00185 vtxfit0->AddTrack(1, pim1); 00186 vtxfit0->AddVertex(0, vxpar, 0, 1); 00187 if(!(vtxfit0->Fit(0))) continue; 00188 vtxfit0->Swim(0); 00189 vtxfit0->BuildVirtualParticle(0); 00190 WTrackParameter wksp = vtxfit0->wtrk(0); 00191 WTrackParameter wksm = vtxfit0->wtrk(1); 00192 WTrackParameter wks_Trk = vtxfit0->wVirtualTrack(0); 00193 VertexParameter wks_var = vtxfit0->vpar(0); 00194 00195 // 00196 //select pi3 00197 // 00198 for(int k = 0; k < evtRecEvent->totalCharged(); k++) { 00199 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + k; 00200 00201 int ipi3= (*itTrk)->trackId(); 00202 if(ipi2==ipi3 || ipi1==ipi3) continue; 00203 00204 if(!(*itTrk)->isMdcKalTrackValid()) continue; 00205 RecMdcKalTrack* mdcKalTrk3 = (*itTrk)->mdcKalTrack(); 00206 RecMdcKalTrack::setPidType(RecMdcKalTrack::pion); 00207 00208 m_chargepi3=mdcKalTrk3->charge(); 00209 if(abs(m_chargepi3) != 1) continue; 00210 00212 HepVector a3 = mdcKalTrk3->getZHelix(); 00213 HepSymMatrix Ea3 = mdcKalTrk3->getZError(); 00214 VFHelix helixip3_3(point0,a3,Ea3); 00215 helixip3_3.pivot(IP); 00216 HepVector vecipa3 = helixip3_3.a(); 00217 00218 double dr3 = fabs(vecipa3[0]); 00219 double dz3 = fabs(vecipa3[3]); 00220 double costheta3 = cos(mdcKalTrk3->theta()); 00221 if ( dr3 >= 1.0) continue; 00222 if ( dz3 >= 10.0) continue; 00223 if ( fabs(costheta3) >= 0.93) continue; 00225 if(PID_flag == 5) { 00226 simple_pid->preparePID(*itTrk); 00227 if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue; 00228 } 00230 WTrackParameter pip2(xmass[2],mdcKalTrk3->getZHelix(),mdcKalTrk3->getZError() ); 00231 00232 // 00233 //select pi4 00234 // 00235 for(int l = 0; l < evtRecEvent->totalCharged(); l++) { 00236 EvtRecTrackIterator itTrk = evtRecTrkCol->begin() + l; 00237 00238 int ipi4= (*itTrk)->trackId(); 00239 if(ipi4==ipi3 || ipi4==ipi2 || ipi4 ==ipi1) continue; 00240 00241 if(!(*itTrk)->isMdcKalTrackValid()) continue; 00242 RecMdcKalTrack* mdcKalTrk4 = (*itTrk)->mdcKalTrack(); 00243 RecMdcKalTrack::setPidType(RecMdcKalTrack::pion); 00244 00245 m_chargepi4=mdcKalTrk4->charge(); 00246 if((m_chargepi4 + m_chargepi3) != 0) continue; 00247 00249 HepVector a4 = mdcKalTrk4->getZHelix(); 00250 HepSymMatrix Ea4 = mdcKalTrk4->getZError(); 00251 VFHelix helixip3_4(point0,a4,Ea4); 00252 helixip3_4.pivot(IP); 00253 HepVector vecipa4 = helixip3_4.a(); 00254 00255 double dr4 = fabs(vecipa4[0]); 00256 double dz4 = fabs(vecipa4[3]); 00257 double costheta4 = cos(mdcKalTrk4->theta()); 00258 if ( dr4 >= 1.0) continue; 00259 if ( dz4 >= 10.0) continue; 00260 if ( fabs(costheta4) >= 0.93) continue; 00262 if(PID_flag == 5) { 00263 simple_pid->preparePID(*itTrk); 00264 if(simple_pid->probPion() < 0.0 || simple_pid->probPion() < simple_pid->probKaon()) continue; 00265 } 00267 WTrackParameter pim2(xmass[2],mdcKalTrk4->getZHelix(),mdcKalTrk4->getZError() ); 00268 00269 for(int m = 0; m < nGam-1; m++) { 00270 if(iGam[m]==-1) continue; 00271 RecEmcShower *g1Trk = (*(evtRecTrkCol->begin()+iGam[m]))->emcShower(); 00272 double eraw1 = g1Trk->energy(); 00273 double phi1 = g1Trk->phi(); 00274 double the1 = g1Trk->theta(); 00275 HepLorentzVector ptrkg1,ptrkg10,ptrkg12; 00276 ptrkg1.setPx(eraw1*sin(the1)*cos(phi1)); 00277 ptrkg1.setPy(eraw1*sin(the1)*sin(phi1)); 00278 ptrkg1.setPz(eraw1*cos(the1)); 00279 ptrkg1.setE(eraw1); 00280 ptrkg10 = ptrkg1; 00281 ptrkg12 = ptrkg1.boost(-0.011,0,0); 00282 00283 for(int n = m+1; n < nGam; n++) { 00284 if(iGam[n]==-1) continue; 00285 RecEmcShower *g2Trk = (*(evtRecTrkCol->begin()+iGam[n]))->emcShower(); 00286 double eraw2 = g2Trk->energy(); 00287 double phi2 = g2Trk->phi(); 00288 double the2 = g2Trk->theta(); 00289 HepLorentzVector ptrkg2,ptrkg20,ptrkg22; 00290 ptrkg2.setPx(eraw2*sin(the2)*cos(phi2)); 00291 ptrkg2.setPy(eraw2*sin(the2)*sin(phi2)); 00292 ptrkg2.setPz(eraw2*cos(the2)); 00293 ptrkg2.setE(eraw2); 00294 ptrkg20 = ptrkg2; 00295 ptrkg22 = ptrkg2.boost(-0.011,0,0); 00296 00298 HepLorentzVector ptrkpi0; 00299 ptrkpi0 = ptrkg12+ptrkg22; 00300 double m_xmpi0_tem = ptrkpi0.m(); 00301 if(m_xmpi0_tem>0.150||m_xmpi0_tem<0.115) continue; 00303 bool IsEndcap1 = false; bool IsEndcap2 = false; 00304 if(fabs(cos(the1)) > 0.86 && fabs(cos(the1)) < 0.92) IsEndcap1 = true; 00305 if(fabs(cos(the2)) > 0.86 && fabs(cos(the2)) < 0.92) IsEndcap2 = true; 00306 if(IsEndcap1 && IsEndcap2) continue; 00308 KalmanKinematicFit * kmfit = KalmanKinematicFit::instance(); 00309 kmfit->init(); 00310 kmfit->setChisqCut(2500); 00311 kmfit->AddTrack(0, 0.0, g1Trk); 00312 kmfit->AddTrack(1, 0.0, g2Trk); 00313 kmfit->AddResonance(0, mpi0, 0, 1); 00314 00315 kmfit->Fit(0); // Perform fit 00316 kmfit->BuildVirtualParticle(0); 00317 00318 double pi0_chisq = kmfit->chisq(0); 00319 if ( pi0_chisq >= 2500) continue; 00320 HepLorentzVector p2gfit = kmfit->pfit(0) + kmfit->pfit(1); 00321 p2gfit.boost(-0.011,0,0); 00323 00324 VertexFit* vtxfit_2 = VertexFit::instance(); 00325 vtxfit_2->init(); 00326 vtxfit_2->AddTrack(0, pip2); 00327 vtxfit_2->AddTrack(1, pim2); 00328 vtxfit_2->AddVertex(0, vxpar, 0, 1); 00329 if(!vtxfit_2->Fit(0)) continue; 00330 vtxfit_2->Swim(0); 00331 00332 WTrackParameter wpip2 = vtxfit_2->wtrk(0); 00333 WTrackParameter wpim2 = vtxfit_2->wtrk(1); 00334 00335 SecondVertexFit *vtxfit = SecondVertexFit::instance(); 00336 vtxfit->init(); 00337 vxpar.setEvx(xoriginEx); 00338 vtxfit->setPrimaryVertex(vxpar); 00339 vtxfit->AddTrack(0, wks_Trk); 00340 vtxfit->setVpar(wks_var); 00341 if(!vtxfit->Fit()) continue; 00342 00343 if(vtxfit->chisq() >999.) continue; 00344 if(vtxfit->decayLength()<0.0) continue; 00345 00346 double m_massks1_tem = vtxfit->p4par().m(); 00347 if(m_massks1_tem < 0.485 || m_massks1_tem > 0.515) continue; 00348 HepLorentzVector p4kstag = vtxfit->p4par(); 00349 WTrackParameter para_ks = vtxfit0->wVirtualTrack(0); 00350 00351 HepVector pip2_val = HepVector(7,0); 00352 HepVector pim2_val = HepVector(7,0); 00353 HepVector ksp_val = HepVector(7,0); 00354 HepVector ksm_val = HepVector(7,0); 00355 00356 pip2_val = wpip2.w(); 00357 pim2_val = wpim2.w(); 00358 ksp_val = wksp.w(); 00359 ksm_val = wksm.w(); 00360 00361 HepLorentzVector P_PIP2(pip2_val[0],pip2_val[1],pip2_val[2],pip2_val[3]); 00362 HepLorentzVector P_PIM2(pim2_val[0],pim2_val[1],pim2_val[2],pim2_val[3]); 00363 HepLorentzVector P_KSP(ksp_val[0],ksp_val[1],ksp_val[2],ksp_val[3]); 00364 HepLorentzVector P_KSM(ksm_val[0],ksm_val[1],ksm_val[2],ksm_val[3]); 00365 00366 p4kstag.boost(-0.011,0,0); 00367 P_PIP2.boost(-0.011,0,0); 00368 P_PIM2.boost(-0.011,0,0); 00369 P_KSP.boost(-0.011,0,0); 00370 P_KSM.boost(-0.011,0,0); 00371 00372 //pddd = P_PIP2 + P_PIM2 + P_KSP + P_KSM + p2gfit; 00373 pddd = P_PIP2 + P_PIM2 + p4kstag + p2gfit; 00374 00375 double pk0pipipi0 = pddd.rho(); 00376 00377 double temp1 = (ecms/2)*(ecms/2)-pk0pipipi0*pk0pipipi0 ; 00378 if(temp1<0) temp1 =0; 00379 double mass_bc_tem = sqrt(temp1); 00380 if(mass_bc_tem <1.82 || mass_bc_tem > 1.89) continue; 00381 00382 double delE_tag_tag = ecms/2-pddd.e(); 00383 00384 if(fabs(delE_tag_tag)<deltaE_tem) { 00385 deltaE_tem = fabs(delE_tag_tag); 00386 delE_tag_temp = delE_tag_tag; 00387 mass_bcgg = mass_bc_tem; 00388 00389 pddd_temp = pddd; 00390 00391 ipi1_temp=ipi1; 00392 ipi2_temp=ipi2; 00393 ipi3_temp=ipi3; 00394 ipi4_temp=ipi4; 00395 iGam1_temp = iGam[m]; 00396 iGam2_temp = iGam[n]; 00397 00398 ncount1 = 1; 00399 00400 } 00401 } 00402 } 00403 } 00404 } 00405 } 00406 } 00407 00408 00409 if(ncount1 == 1){ 00410 tagmode=17; 00411 if(m_chargetag<0) tagmode=-17; 00412 tagmd=tagmode; 00413 mass_bc = mass_bcgg; 00414 delE_tag = delE_tag_temp; 00415 cqtm = 0; 00416 00417 iGoodtag.push_back(ipi1_temp); 00418 iGoodtag.push_back(ipi2_temp); 00419 iGoodtag.push_back(ipi3_temp); 00420 iGoodtag.push_back(ipi4_temp); 00421 00422 iGamtag.push_back(iGam1_temp); 00423 iGamtag.push_back(iGam2_temp); 00424 iGamtag.push_back(9999); 00425 iGamtag.push_back(9999); 00426 00427 ptag = pddd_temp; 00428 00429 k0pipipi0md = true; 00430 } 00431 00432 }
double K0pipipi0::cqtm [private] |
double K0pipipi0::delE_tag [private] |
Vint K0pipipi0::iGamtag [private] |
Vint K0pipipi0::iGoodtag [private] |
bool K0pipipi0::k0pipipi0md [private] |
double K0pipipi0::mass_bc [private] |
HepLorentzVector K0pipipi0::ptag [private] |
double K0pipipi0::tagmd [private] |