33 {
34
35 const double probVrtMergeLimit=0.01;
36
38 int inpNPart=xAODwrk->inpTrk.size();
39 std::vector<const xAOD::NeutralParticle*> neutralPartDummy(0);
40 ATH_MSG_DEBUG(
"getVrtSecMulti() called with NPart=" << inpNPart);
41
42 std::vector<xAOD::Vertex*> finalVertices(0);
43
44 if( inpNPart < 2 ) { return finalVertices;}
45
47 int nTracks = xAODwrk->listSelTracks.size();
48
49 if( nTracks < 2 ) { return finalVertices;}
50
52
55 h.m_hb_ntrksel->Fill( (
double) nTracks,
m_w_1);
56 }
57
58
59
60
61
62
63
64
65
66 std::map<long int,std::vector<double>> foundVrt2t;
67 select2TrVrt(xAODwrk->listSelTracks, primVrt, foundVrt2t, compatibilityGraph);
68
69
70 ATH_MSG_DEBUG(
" Defined edges in the graph="<< num_edges(compatibilityGraph));
71 if(num_edges(compatibilityGraph)==0){ return finalVertices;}
72
73
74
75
76
77
78
79
80
81 std::unique_ptr<std::vector<WrkVrt>> wrkVrtSet = std::make_unique<std::vector<WrkVrt>>();
83 std::unique_ptr<Trk::IVKalState> state =
m_fitSvc->makeState();
85 long int NPTR=0, nth=2;
86
87
88 std::vector< std::vector<int> > allCliques;
89 bron_kerbosch_all_cliques(compatibilityGraph, clique_visitor(allCliques));
90 for(
int cq=0; cq<(
int)allCliques.size();cq++){
91 newvrt.selTrk.clear();
92 NPTR=allCliques[cq].size();
93 for(i=0;
i<NPTR;
i++){ newvrt.selTrk.push_back(allCliques[cq][i]);}
94
95 xAODwrk->tmpListTracks.clear();
96 TLorentzVector vpsum;
98 xAODwrk->tmpListTracks.push_back( xAODwrk->listSelTracks.at(newvrt.selTrk[i]) );
99 vpsum += xAODwrk->listSelTracks.at(newvrt.selTrk[i])->p4();
100 }
101 std::vector<double> iniVrtPos=
estimVrtPos(nTracks,newvrt.selTrk,foundVrt2t);
102 m_fitSvc->setApproximateVertex(iniVrtPos[0], iniVrtPos[1], iniVrtPos[2], *state);
103 sc=
m_fitSvc->VKalVrtFit(xAODwrk->tmpListTracks, neutralPartDummy,
104 newvrt.vertex, newvrt.vertexMom, newvrt.vertexCharge, newvrt.vertexCov,
105 newvrt.chi2PerTrk, newvrt.trkAtVrt, newvrt.chi2,
106 *state, false);
107 if(
sc.isFailure() )
continue;
108 ATH_MSG_VERBOSE(
"Found IniVertex="<<newvrt.vertex[0]<<
", "<<newvrt.vertex[1]<<
", "<<newvrt.vertex[2]);
109 ATH_MSG_VERBOSE(
"with Chi2="<<newvrt.chi2<<
" Ntrk="<<NPTR<<
" trk1,2="<<newvrt.selTrk[0]<<
", "<<newvrt.selTrk[1]);
110 if(NPTR==2 && newvrt.chi2>10.) continue;
111 if(newvrt.chi2PerTrk.size()==2) newvrt.chi2PerTrk[0]=newvrt.chi2PerTrk[1]=newvrt.chi2/2.;
112 newvrt.Good = true;
113 newvrt.projectedVrt=
MomProjDist(newvrt.vertex, primVrt, newvrt.vertexMom);
114 wrkVrtSet->push_back(newvrt);
115 }
116 std::sort(wrkVrtSet->begin(),wrkVrtSet->end(),[](
const WrkVrt&
a,
const WrkVrt& b){return a.selTrk.size()>b.selTrk.size();});
117
118
119
120
121
122
123
124
125 if((*wrkVrtSet).empty())return finalVertices;
127
128
129 std::vector<int> trkNPairs(nTracks,0);
130 for(auto &vrt : (*wrkVrtSet)){
131 int ntInV=vrt.selTrk.size()-1;
132 for(auto &trk : vrt.selTrk)trkNPairs.at(trk) += ntInV;
133 }
134
135
136
138 std::multimap<double,std::pair<int,int>> vrtWithCommonTrk;
139 while(true){
140 int nSoluI=(*wrkVrtSet).size();
141 vrtWithCommonTrk.clear();
142 unsigned int nTComMax=0;
143 for(int iv=0; iv<nSoluI-1; iv++ ){
144 if(!(*wrkVrtSet)[iv].Good) continue;
145 if( (*wrkVrtSet)[iv].selTrk.size()<nTComMax) continue;
146 for(int jv=iv+1; jv<nSoluI; jv++){
147 if(!(*wrkVrtSet)[jv].Good) continue;
148 if( (*wrkVrtSet)[jv].selTrk.size()<nTComMax) continue;
149 unsigned int nTCom=
nTrkCommon( wrkVrtSet.get(), iv, jv);
150 if(!nTCom) continue;
151 if(nTCom<nTComMax) continue;
152 double sumChi2=(*wrkVrtSet)[iv].chi2+(*wrkVrtSet)[jv].chi2;
153 sumChi2=std::min(sumChi2,999.)*1.e-3;
154 vrtWithCommonTrk.emplace(nTCom+sumChi2,std::make_pair(iv,jv));
155 nTComMax=std::max(nTComMax,nTCom);
156 } }
157 if(vrtWithCommonTrk.empty())break;
158
159
160
161
162 for( const auto& ov : std::ranges::reverse_view(vrtWithCommonTrk)) {
163 WrkVrt & v1 = (*wrkVrtSet)[
ov.second.first];
165 if(!v1.Good)continue;
166 if(!
v2.Good)
continue;
167
168 unsigned int nTCom=
nTrkCommon( wrkVrtSet.get(),
ov.second.first,
ov.second.second);
169 if(nTCom<nTComMax)continue;
170
171 if( nTCom==v1.selTrk.size() || nTCom==
v2.selTrk.size() ){
172 if(nTCom==v1.selTrk.size()){v1.Good = false; continue;}
173 if(nTCom==
v2.selTrk.size()){
v2.Good =
false;
continue;}
174 }
175
176 if( nTCom>1 && TMath::Prob( v1.chi2, 2*v1.selTrk.size()-3) > probVrtMergeLimit
177 && TMath::Prob(
v2.chi2, 2*
v2.selTrk.size()-3) > probVrtMergeLimit){
179 if(prbV>probVrtMergeLimit){
180 v1.Good =
false;
v2.Good =
false;
181 newvrt.Good = true;
182 newvrt.projectedVrt=
MomProjDist(newvrt.vertex, primVrt, newvrt.vertexMom);
184 continue;
185 } }
186
188 }
189 }
191 int cvgood=0; for(const auto& vrt:(*wrkVrtSet)) if(vrt.Good)cvgood++;
193 h.m_hb_rawVrtN->Fill( (
float)cvgood,
m_w_1);
194 }
195
196
197
199 for(auto &v1t : (*wrkVrtSet)){
200 if(v1t.selTrk.size()!=1 || !v1t.Good)continue;
201 int ind_t=v1t.selTrk[0];
202 if(trkNPairs[ind_t]<2){ v1t.Good=false; continue; }
203 if( xAODwrk->listSelTracks[ind_t]->pt()<
m_cutPt*2){ v1t.Good=
false;
continue; };
204 for(auto &vrt :(*wrkVrtSet)){
205 if(!vrt.Good || &v1t==&vrt)continue;
206 if(std::find(vrt.selTrk.begin(),vrt.selTrk.end(),ind_t) != vrt.selTrk.end()){ v1t.Good=false; break; }
207 } }
208 }
209
210
211
212 int tmpV=0; while( tmpV<(int)(*wrkVrtSet).size() )if( !(*wrkVrtSet)[tmpV].Good ) { (*wrkVrtSet).erase((*wrkVrtSet).begin()+tmpV);} else {tmpV++;}
213 if((*wrkVrtSet).empty())return finalVertices;
215 for(
auto &tmpV : (*wrkVrtSet) ) tmpV.projectedVrt=
MomProjDist(tmpV.vertex, primVrt, tmpV.vertexMom );
216
217
218
219
220
221
222 int foundV1=-1, foundV2=-1;
223 std::vector<double> checkedDst(0);
224 double minDistVV=
minVrtVrtDist( wrkVrtSet.get(), foundV1, foundV2, checkedDst);
227 h.m_hb_distVV->Fill( minDistVV,
m_w_1);
228 }
230 if(foundV1<foundV2) {
int tmp=foundV1; foundV1=foundV2; foundV2=
tmp;}
231 double probV=
mergeAndRefitVertices( (*wrkVrtSet)[foundV1], (*wrkVrtSet)[foundV2], newvrt, xAODwrk->listSelTracks, *state, 0);
232 ATH_MSG_DEBUG(
"Merged vertex prob=" << probV<<
" Vrt1="<<foundV1<<
" Vrt2="<<foundV2<<
" dst="<<minDistVV);
233 if(probV<probVrtMergeLimit){
234 int pos=std::max_element(newvrt.chi2PerTrk.begin(),newvrt.chi2PerTrk.end())-newvrt.chi2PerTrk.begin();
235 newvrt.detachedTrack=newvrt.selTrk[
pos];
236 newvrt.selTrk.erase(newvrt.selTrk.begin()+pos);
237 probV =
refitVertex( newvrt, xAODwrk->listSelTracks, *state,
false);
239 }
240 if(probV>probVrtMergeLimit && newvrt.vertexMom.M()<
m_vrtMassLimit){
241 newvrt.projectedVrt=
MomProjDist(newvrt.vertex, primVrt, newvrt.vertexMom);
243 (*wrkVrtSet)[foundV2].Good=false;
244 (*wrkVrtSet)[foundV2].selTrk.clear();
245 } else checkedDst.push_back(minDistVV);
246 minDistVV=
minVrtVrtDist( wrkVrtSet.get(), foundV1, foundV2, checkedDst);
247 }
248
249
250 for(
int iv=0; iv<(
int)wrkVrtSet->size(); iv++) {
251 if(!(*wrkVrtSet)[iv].Good ) continue;
252 if( (*wrkVrtSet)[iv].selTrk.size()<3 ) continue;
253 double tmpProb=TMath::Prob( (*wrkVrtSet)[iv].
chi2, 2*(*wrkVrtSet)[iv].selTrk.size()-3 );
256 tmpProb=
improveVertexChi2( (*wrkVrtSet)[iv], xAODwrk->listSelTracks, *state,
false);
257 (*wrkVrtSet)[iv].projectedVrt=
MomProjDist((*wrkVrtSet)[iv].vertex, primVrt, (*wrkVrtSet)[iv].vertexMom);
258 }
259 }
260
261
262 for(auto & iv : (*wrkVrtSet)){
264 ATH_MSG_DEBUG(
"Heavy vertex found Mass=" << iv.vertexMom.M());
266 if(it_bad>-1){
267 iv.selTrk.erase( iv.selTrk.begin() + it_bad );
268 refitVertex(iv, xAODwrk->listSelTracks, *state,
false);
269 iv.projectedVrt=
MomProjDist(iv.vertex, primVrt, iv.vertexMom);
270 } } }
271
272
273
274 double signif3D=0., signif2D=0.;
275
276
277 for(
int iv=0; iv<(
int)wrkVrtSet->size(); iv++) {
278 WrkVrt & curVrt=(*wrkVrtSet)[iv];
279 nth=(*wrkVrtSet)[iv].
selTrk.size();
280 if(nth == 1) continue;
281 if(!curVrt.Good ) continue;
282 (*wrkVrtSet)[iv].Good = false;
283 if(nth < 1) continue;
284 if((*wrkVrtSet)[iv].projectedVrt<0.) continue;
286
287 vrtVrtDist(primVrt,curVrt.vertex, curVrt.vertexCov, signif3D);
290 if(nth==2 && curVrt.vertexCharge==0)
h.m_hb_massPiPi1->Fill(curVrt.vertexMom.M(),
m_w_1);
291 h.m_hb_sig3DTot->Fill( signif3D,
m_w_1);
292 if(nth==2)
h.m_hb_sig3D2tr->Fill( signif3D,
m_w_1);
293 if(nth >2)
h.m_hb_sig3DNtr->Fill( signif3D,
m_w_1);
294 }
295
296
297#if 0
298 if(nth==2 && curVrt.vertexCharge==0 && curVrt.detachedTrack<0){
299 double mass_PiPi = curVrt.vertexMom.M();
304 h.m_hb_massPiPi->Fill( mass_PiPi,
m_w_1);
305 h.m_hb_massPPi ->Fill( mass_PPi,
m_w_1);
306 if( curVrt.vertex.perp()>20.)
h.m_hb_massEE ->Fill( mass_EE,
m_w_1);
307 }
308 if( std::abs(mass_PiPi-
m_massK0) < 22.)
continue;
309 if( std::abs(mass_PPi-
m_massLam) < 8.)
continue;
310 if( mass_EE < 60. && curVrt.vertex.perp() > 20.) continue;
311 }
312#endif
313
316 curVrt.Good = true;
317 }
319
320
321
322 std::vector<double> impact,impactError;
323 for(
int iv=0; iv<(
int)wrkVrtSet->size(); iv++) {
324 WrkVrt & curVrt=(*wrkVrtSet)[iv];
326 if(!curVrt.Good || nth<2) continue;
327 double minPtT=1.e6, minSig3DT=1.e6, maxSig3DT=0.;
328 int ntrkBC=0,ntrkI=0,sumIBLHits=0,sumBLHits=0;
331 minPtT=std::min( minPtT, xAODwrk->listSelTracks[j]->pt());
332 m_fitSvc->VKalGetImpact(xAODwrk->listSelTracks[j], primVrt.
position(), 1, impact, impactError);
333 double SigR2 = impact[0]*impact[0]/impactError[0];
334 double SigZ2 = impact[1]*impact[1]/impactError[2];
335 minSig3DT=std::min( minSig3DT, sqrt( SigR2 + SigZ2) );
336 maxSig3DT=std::max( maxSig3DT, sqrt( SigR2 + SigZ2) );
337 sumIBLHits += std::max(
getIBLHit(xAODwrk->listSelTracks[j]),0);
338 sumBLHits += std::max(
getBLHit(xAODwrk->listSelTracks[j]),0);
340 ntrkBC +=
getIdHF(xAODwrk->listSelTracks[j]);
341 ntrkI +=
getG4Inter(xAODwrk->listSelTracks[j]);
342 }
343 }
344 float vProb=TMath::Prob(curVrt.chi2, 2*nth-3);
345 float cosSVPVM=
projSV_PV(curVrt.vertex, primVrt, curVrt.vertexMom);
346 float vrtR=curVrt.vertex.perp();
347 TLorentzVector SVPV(curVrt.vertex.x()-primVrt.
x(),curVrt.vertex.y()-primVrt.
y(),curVrt.vertex.z()-primVrt.
z(), 10.);
350 if( nth>1 ){
351 vrtVrtDist(primVrt,curVrt.vertex, curVrt.vertexCov, signif3D);
352 float Dist2D=
vrtVrtDist2D(primVrt,curVrt.vertex, curVrt.vertexCov, signif2D);
353 h.m_curTup->NVrtTrk [
h.m_curTup->nNVrt] = nth;
354 h.m_curTup->NVrtTrkHF [
h.m_curTup->nNVrt] = ntrkBC;
355 h.m_curTup->NVrtTrkI [
h.m_curTup->nNVrt] = ntrkI;
356 h.m_curTup->NVrtProb [
h.m_curTup->nNVrt] = vProb;
357 h.m_curTup->NVrtSig3D [
h.m_curTup->nNVrt] = signif3D;
358 h.m_curTup->NVrtSig2D [
h.m_curTup->nNVrt] = signif2D;
359 h.m_curTup->NVrtDist2D[
h.m_curTup->nNVrt] = vrtR<20. ? Dist2D : vrtR;
360 h.m_curTup->NVrtM [
h.m_curTup->nNVrt] = curVrt.vertexMom.M();
361 h.m_curTup->NVrtPt [
h.m_curTup->nNVrt] = curVrt.vertexMom.Pt();
362 h.m_curTup->NVrtEta [
h.m_curTup->nNVrt] = SVPV.Eta();
363 h.m_curTup->NVrtIBL [
h.m_curTup->nNVrt] = sumIBLHits;
364 h.m_curTup->NVrtBL [
h.m_curTup->nNVrt] = sumBLHits;
365 h.m_curTup->NVrtCosSPM[
h.m_curTup->nNVrt] = cosSVPVM;
366 h.m_curTup->NVrtCh [
h.m_curTup->nNVrt] = curVrt.vertexCharge;
367 h.m_curTup->NVMinPtT [
h.m_curTup->nNVrt] = minPtT;
368 h.m_curTup->NVMinS3DT [
h.m_curTup->nNVrt] = minSig3DT;
369 h.m_curTup->NVrtBDT [
h.m_curTup->nNVrt] = 1.1;
370 h.m_curTup->NVrtHR1 [
h.m_curTup->nNVrt] = xAODwrk->listSelTracks[curVrt.selTrk[0]]->radiusOfFirstHit();
371 h.m_curTup->NVrtHR2 [
h.m_curTup->nNVrt] = xAODwrk->listSelTracks[curVrt.selTrk[1]]->radiusOfFirstHit();
373 }
374 }
375
376
377
378 if(nth==2){
379 float wgtSelect=-1.1;
383 std::vector<float> testVcov(curVrt.vertexCov.begin(),curVrt.vertexCov.end());
386 bool acceptV=
m_fin_v2trselector->isgood(std::make_pair(xAODwrk->listSelTracks[curVrt.selTrk[0]],
387 xAODwrk->listSelTracks[curVrt.selTrk[1]]),
388 testV,
389 std::make_pair(
momAtVrt(curVrt.trkAtVrt[0]),
momAtVrt(curVrt.trkAtVrt[1])), primVrt, wgtSelect);
390 curVrt.BDT=wgtSelect;
393 h.m_hb_fakeSVBDT->Fill(wgtSelect,1.);
394 h.m_curTup->NVrtBDT[
h.m_curTup->nNVrt-1] = wgtSelect;
395 }
396 if(!acceptV){
397 curVrt.Good = false;
399 for(auto it : curVrt.selTrk){
400 for(auto &vtmp : (*wrkVrtSet)){
401 if(vtmp.selTrk.size()!=1 || (!vtmp.Good)) continue;
402 if(it==vtmp.detachedTrack)vtmp.Good=false;
403 } } }
404 }
405 }
406 }
407
408
409
412 for(auto & vrt : (*wrkVrtSet)) {
413 if( !vrt.Good || vrt.selTrk.size() != 1 ) continue;
414 const auto *xaodtp=xAODwrk->listSelTracks[vrt.selTrk[0]];
415 m_fitSvc->VKalGetImpact(xaodtp, primVrt.
position(), 1, impact, impactError);
416 double SigR2 = std::abs(impact[0]*impact[0]/impactError[0]);
417 double SigZ2 = std::abs(impact[1]*impact[1]/impactError[2]);
418 float dist2D=
vrtVrtDist2D(primVrt,vrt.vertex, vrt.vertexCov, signif2D);
419 h.m_curTup->NVrtTrk [
h.m_curTup->nNVrt] = 1;
420 h.m_curTup->NVrtTrkHF [
h.m_curTup->nNVrt] =
getIdHF(xaodtp);
421 h.m_curTup->NVrtProb [
h.m_curTup->nNVrt] = trkNPairs[vrt.selTrk[0]];
422 h.m_curTup->NVrtSig3D [
h.m_curTup->nNVrt] = 0.;
423 h.m_curTup->NVrtSig2D [
h.m_curTup->nNVrt] = signif2D;
424 h.m_curTup->NVrtDist2D[
h.m_curTup->nNVrt] = dist2D;
425 h.m_curTup->NVrtM [
h.m_curTup->nNVrt] = vrt.vertexMom.M();
426 h.m_curTup->NVrtPt [
h.m_curTup->nNVrt] = vrt.vertexMom.Pt();
427 h.m_curTup->NVrtCosSPM[
h.m_curTup->nNVrt] = 0.;
428 h.m_curTup->NVrtCh [
h.m_curTup->nNVrt] = vrt.vertexCharge;
429 h.m_curTup->NVMinPtT [
h.m_curTup->nNVrt] = xaodtp->pt();
430 h.m_curTup->NVMinS3DT [
h.m_curTup->nNVrt] = sqrt(SigR2 + SigZ2);
431 h.m_curTup->NVrtBDT [
h.m_curTup->nNVrt] = 1.1;
432 h.m_curTup->NVrtIBL [
h.m_curTup->nNVrt] = std::max(
getIBLHit(xaodtp),0);
433 h.m_curTup->NVrtBL [
h.m_curTup->nNVrt] = std::max(
getBLHit (xaodtp),0);
435 } }
436
437
438 std::multimap<double,WrkVrt,std::greater<double>> goodVertexMap;
439 int nNtrVrt=0;
440 for(auto & iv : (*wrkVrtSet) ) {
441 nth=iv.selTrk.size();
442 if(nth==1)iv.BDT=-2.;
444 if(nth==1)
selector=iv.BDT+std::min(iv.vertexMom.Pt()*1.e-5,1.);
445 else if(nth>2)
selector=iv.BDT+iv.vertexMom.M()*1.e-5;
446 if( iv.Good && nth>0 ) {
447 goodVertexMap.emplace(selector,iv);
448 if(nth>1)nNtrVrt++;
449 }
450 }
451 if(nNtrVrt==0){
455 }
456 return finalVertices;
457 }
458
459
460
461
462 static const SG::AuxElement::Decorator<float> wgtBDT("wgtBDT");
463 static const SG::AuxElement::Decorator<int> nTrksDec("nTracks");
464 static const SG::AuxElement::Decorator<int> vChrgTot("vCharge");
465 int n1trVrt=0;
466 for(auto & iv : goodVertexMap){
467 WrkVrt & curVrt=iv.second;
469 xAODwrk->tmpListTracks.clear();
470 for(auto t : curVrt.selTrk)xAODwrk->tmpListTracks.push_back( xAODwrk->listSelTracks[t] );
473 h.m_hb_totmass->Fill(curVrt.vertexMom.M(),
m_w_1);
474 h.m_hb_r2d->Fill( curVrt.vertex.perp(),
m_w_1);
475 }
476
478 if(nth>1){
479 tmpVertex=
m_fitSvc->fit(xAODwrk->tmpListTracks,curVrt.vertex,*state);
480 } else if(nth==1){
482 if(!tmpVertex)continue;
485 std::vector<float> floatErrMtx(6);
486 for(
int i=0;
i<6;
i++) floatErrMtx[i]=curVrt.vertexCov[i];
489 std::vector<Trk::VxTrackAtVertex> & tmpVTAV=tmpVertex->
vxTrackAtVertex(); tmpVTAV.clear();
491 CovMtxP.setIdentity();
492 Trk::
Perigee * tmpMeasPer = new (std::nothrow) Trk::
Perigee( 0.,0.,
493 curVrt.trkAtVrt[0][0],
494 curVrt.trkAtVrt[0][1],
495 curVrt.trkAtVrt[0][2],
496 Trk::PerigeeSurface(curVrt.vertex),
497 std::move(CovMtxP) );
498 tmpVTAV.emplace_back( 1., tmpMeasPer );
501 TEL.setStorableObject(*cont);
502 tmpVertex->addTrackAtVertex(TEL,1.);
503 n1trVrt++;
504 }
506 wgtBDT (*tmpVertex) =curVrt.BDT;
507 nTrksDec(*tmpVertex) =curVrt.selTrk.size();
508 vChrgTot(*tmpVertex) =curVrt.vertexCharge;
510 finalVertices.push_back(tmpVertex);
511 for (int ind=0; ind<nth; ind++) {
512 m_chi2_toSV(*xAODwrk->listSelTracks[curVrt.selTrk[ind]]) = curVrt.chi2PerTrk[ind] > FLT_MAX ? FLT_MAX : curVrt.chi2PerTrk[ind];
513 }
514 }
515 }
518 h.m_hb_goodvrtN->Fill( finalVertices.size()+0.1,
m_w_1);
519 h.m_hb_goodvrt1N->Fill( n1trVrt+0.1,
m_w_1);
520 }
521
522
523
524 return finalVertices;
525
526 }
#define AmgSymMatrix(dim)
TrackParticleContainer_v1 TrackParticleContainer
Definition of the current "TrackParticle container version".
bool msgLvl(const MSG::Level lvl) const
void makePrivateStore()
Create a new (empty) private store for this object.
float z() const
Returns the z position.
float y() const
Returns the y position.
void setCovariance(const std::vector< float > &value)
Sets the covariance matrix as a simple vector of values.
void setPosition(const Amg::Vector3D &position)
Sets the 3-position.
std::vector< Trk::VxTrackAtVertex > & vxTrackAtVertex()
Non-const access to the VxTrackAtVertex vector.
void setFitQuality(float chiSquared, float numberDoF)
Set the 'Fit Quality' information.
const Amg::Vector3D & position() const
Returns the 3-pos.
float x() const
Returns the x position.
double chi2(TH1 *h0, TH1 *h1)
::StatusCode StatusCode
StatusCode definition for legacy code.
void sort(typename DataModel_detail::iterator< DVL > beg, typename DataModel_detail::iterator< DVL > end)
Specialization of sort for DataVector/List.
void swap(ElementLinkVector< DOBJ > &lhs, ElementLinkVector< DOBJ > &rhs)
@ SecVtx
Secondary vertex.
Vertex_v1 Vertex
Define the latest version of the vertex class.