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PsiPlusPsiCascade.cxx
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1/*
2 Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
3 Contact: Xin Chen <xin.chen@cern.ch>
4*/
5#include "PsiPlusPsiCascade.h"
6#include "TrkVertexFitterInterfaces/IVertexFitter.h"
7#include "TrkVKalVrtFitter/TrkVKalVrtFitter.h"
8#include "TrkVKalVrtFitter/VxCascadeInfo.h"
9#include "TrkVertexAnalysisUtils/V0Tools.h"
10#include "DerivationFrameworkBPhys/CascadeTools.h"
11#include "BPhysPVCascadeTools.h"
12#include "xAODTracking/VertexAuxContainer.h"
13#include "xAODBPhys/BPhysHypoHelper.h"
14#include "GeneratorModules/GenData.h"
15#include "TruthUtils/HepMCHelpers.h"
16#include <algorithm>
17#include <functional>
18
19namespace DerivationFramework {
20 typedef ElementLink<xAOD::VertexContainer> VertexLink;
21 typedef std::vector<VertexLink> VertexLinkVector;
22
23 StatusCode PsiPlusPsiCascade::initialize() {
24 // retrieving vertex Fitter
25 ATH_CHECK( m_iVertexFitter.retrieve() );
26
27 // retrieve PV refitter
28 ATH_CHECK( m_pvRefitter.retrieve() );
29
30 // retrieving the V0 tools
31 ATH_CHECK( m_V0Tools.retrieve() );
32
33 // retrieving the Cascade tools
34 ATH_CHECK( m_CascadeTools.retrieve() );
35
36 ATH_CHECK( m_vertexPsi1ContainerKey.initialize() );
37 ATH_CHECK( m_vertexPsi2ContainerKey.initialize() );
38 ATH_CHECK( m_VxPrimaryCandidateName.initialize() );
39 ATH_CHECK( m_trackContainerName.initialize() );
40 ATH_CHECK( m_refPVContainerName.initialize() );
41 ATH_CHECK( m_cascadeOutputsKeys.initialize() );
42 ATH_CHECK( m_eventInfo_key.initialize() );
43
44 auto gendata = std::make_shared<GenData>();
45 if(m_massJpsi1 < 0.) m_massJpsi1 = gendata->particleMass(MC::JPSI).value();
46 if(m_massJpsi2 < 0.) m_massJpsi2 = gendata->particleMass(MC::JPSI).value();
47 if(m_massPsi1 < 0.) m_massPsi1 = gendata->particleMass(MC::PSI2S).value();
48 if(m_massPsi2 < 0.) m_massPsi2 = gendata->particleMass(MC::PSI2S).value();
49 if(m_vtx1Daug1MassHypo < 0.) m_vtx1Daug1MassHypo = gendata->particleMass(MC::MUON).value();
50 if(m_vtx1Daug2MassHypo < 0.) m_vtx1Daug2MassHypo = gendata->particleMass(MC::MUON).value();
51 if(m_vtx1Daug3MassHypo < 0.) m_vtx1Daug3MassHypo = gendata->particleMass(MC::PIPLUS).value();
52 if(m_vtx1Daug4MassHypo < 0.) m_vtx1Daug4MassHypo = gendata->particleMass(MC::PIPLUS).value();
53 if(m_vtx2Daug1MassHypo < 0.) m_vtx2Daug1MassHypo = gendata->particleMass(MC::MUON).value();
54 if(m_vtx2Daug2MassHypo < 0.) m_vtx2Daug2MassHypo = gendata->particleMass(MC::MUON).value();
55 if(m_vtx2Daug3MassHypo < 0.) m_vtx2Daug3MassHypo = gendata->particleMass(MC::PIPLUS).value();
56 if(m_vtx2Daug4MassHypo < 0.) m_vtx2Daug4MassHypo = gendata->particleMass(MC::PIPLUS).value();
57
58 return StatusCode::SUCCESS;
59 }
60
61 StatusCode PsiPlusPsiCascade::addBranches(const EventContext& ctx) const {
62 if ((m_vtx1Daug_num != 3 && m_vtx1Daug_num != 4) || (m_vtx2Daug_num != 3 && m_vtx2Daug_num != 4)) {
63 ATH_MSG_FATAL("Incorrect number of Psi daughters (should be 3 or 4)");
64 return StatusCode::FAILURE;
65 }
66
67 constexpr int topoN = 3;
68 if(m_cascadeOutputsKeys.size() != topoN) {
69 ATH_MSG_FATAL("Incorrect number of VtxContainers");
70 return StatusCode::FAILURE;
71 }
72 std::array<SG::WriteHandle<xAOD::VertexContainer>, topoN> VtxWriteHandles; int ikey(0);
73 for(const SG::WriteHandleKey<xAOD::VertexContainer>& key : m_cascadeOutputsKeys) {
74 VtxWriteHandles[ikey] = SG::WriteHandle<xAOD::VertexContainer>(key, ctx);
75 ATH_CHECK( VtxWriteHandles[ikey].record(std::make_unique<xAOD::VertexContainer>(), std::make_unique<xAOD::VertexAuxContainer>()) );
76 ikey++;
77 }
78
79 //----------------------------------------------------
80 // retrieve primary vertices
81 //----------------------------------------------------
82 SG::ReadHandle<xAOD::VertexContainer> pvContainer(m_VxPrimaryCandidateName, ctx);
83 ATH_CHECK( pvContainer.isValid() );
84 if (pvContainer.cptr()->size()==0) {
85 ATH_MSG_WARNING("You have no primary vertices: " << pvContainer.cptr()->size());
86 return StatusCode::RECOVERABLE;
87 }
88
89 //----------------------------------------------------
90 // Record refitted primary vertices
91 //----------------------------------------------------
92 SG::WriteHandle<xAOD::VertexContainer> refPvContainer;
93 if(m_refitPV) {
94 refPvContainer = SG::WriteHandle<xAOD::VertexContainer>(m_refPVContainerName, ctx);
95 ATH_CHECK( refPvContainer.record(std::make_unique<xAOD::VertexContainer>(), std::make_unique<xAOD::VertexAuxContainer>()) );
96 }
97
98 std::vector<Trk::VxCascadeInfo*> cascadeinfoContainer;
99 std::vector<Trk::VxCascadeInfo*> cascadeinfoContainer_noConstr;
100 ATH_CHECK(performSearch(&cascadeinfoContainer,&cascadeinfoContainer_noConstr,ctx));
101
102 SG::ReadHandle<xAOD::EventInfo> evt(m_eventInfo_key, ctx);
103 ATH_CHECK( evt.isValid() );
104 BPhysPVCascadeTools helper(&(*m_CascadeTools), evt.cptr());
105 helper.SetMinNTracksInPV(m_PV_minNTracks);
106
107 // Decorators for the main vertex: chi2, ndf, pt and pt error, plus the V0 vertex variables
108 SG::AuxElement::Decorator<VertexLinkVector> CascadeLinksDecor("CascadeVertexLinks");
109 SG::AuxElement::Decorator<VertexLinkVector> Psi1LinksDecor("Psi1VertexLinks");
110 SG::AuxElement::Decorator<VertexLinkVector> Psi2LinksDecor("Psi2VertexLinks");
111 SG::AuxElement::Decorator<float> chi2_decor("ChiSquared");
112 SG::AuxElement::Decorator<int> ndof_decor("nDoF");
113 SG::AuxElement::Decorator<float> chi2_nc_decor("ChiSquared_nc");
114 SG::AuxElement::Decorator<int> ndof_nc_decor("nDoF_nc");
115 SG::AuxElement::Decorator<float> Pt_decor("Pt");
116 SG::AuxElement::Decorator<float> PtErr_decor("PtErr");
117 SG::AuxElement::Decorator<float> chi2_SV1_decor("ChiSquared_SV1");
118 SG::AuxElement::Decorator<float> chi2_nc_SV1_decor("ChiSquared_nc_SV1");
119 SG::AuxElement::Decorator<float> chi2_V1_decor("ChiSquared_V1");
120 SG::AuxElement::Decorator<int> ndof_V1_decor("nDoF_V1");
121 SG::AuxElement::Decorator<float> lxy_SV1_decor("lxy_SV1");
122 SG::AuxElement::Decorator<float> lxyErr_SV1_decor("lxyErr_SV1");
123 SG::AuxElement::Decorator<float> a0xy_SV1_decor("a0xy_SV1");
124 SG::AuxElement::Decorator<float> a0xyErr_SV1_decor("a0xyErr_SV1");
125 SG::AuxElement::Decorator<float> a0z_SV1_decor("a0z_SV1");
126 SG::AuxElement::Decorator<float> a0zErr_SV1_decor("a0zErr_SV1");
127 SG::AuxElement::Decorator<float> chi2_SV2_decor("ChiSquared_SV2");
128 SG::AuxElement::Decorator<float> chi2_nc_SV2_decor("ChiSquared_nc_SV2");
129 SG::AuxElement::Decorator<float> chi2_V2_decor("ChiSquared_V2");
130 SG::AuxElement::Decorator<int> ndof_V2_decor("nDoF_V2");
131 SG::AuxElement::Decorator<float> lxy_SV2_decor("lxy_SV2");
132 SG::AuxElement::Decorator<float> lxyErr_SV2_decor("lxyErr_SV2");
133 SG::AuxElement::Decorator<float> a0xy_SV2_decor("a0xy_SV2");
134 SG::AuxElement::Decorator<float> a0xyErr_SV2_decor("a0xyErr_SV2");
135 SG::AuxElement::Decorator<float> a0z_SV2_decor("a0z_SV2");
136 SG::AuxElement::Decorator<float> a0zErr_SV2_decor("a0zErr_SV2");
137
138 // Get the container and identify the input Psi's
139 SG::ReadHandle<xAOD::VertexContainer> psi1Container(m_vertexPsi1ContainerKey, ctx);
140 ATH_CHECK( psi1Container.isValid() );
141 SG::ReadHandle<xAOD::VertexContainer> psi2Container(m_vertexPsi2ContainerKey, ctx);
142 ATH_CHECK( psi2Container.isValid() );
143
144 for(size_t ic=0; ic<cascadeinfoContainer.size(); ic++) {
145 Trk::VxCascadeInfo* cascade_info = cascadeinfoContainer[ic];
146 if(cascade_info==nullptr) {
147 ATH_MSG_ERROR("CascadeInfo is null");
148 continue;
149 }
150
151 Trk::VxCascadeInfo* cascade_info_noConstr = cascadeinfoContainer_noConstr[ic];
152
153 const std::vector<xAOD::Vertex*> &cascadeVertices = cascade_info->vertices();
154 if(cascadeVertices.size() != topoN) ATH_MSG_ERROR("Incorrect number of vertices");
155 if(cascadeVertices[0]==nullptr || cascadeVertices[1]==nullptr || cascadeVertices[2]==nullptr) ATH_MSG_ERROR("Error null vertex");
156 // Keep vertices
157 for(int i=0; i<topoN; i++) VtxWriteHandles[i].ptr()->push_back(cascadeVertices[i]);
158
159 cascade_info->setSVOwnership(false); // Prevent Container from deleting vertices
160 const auto mainVertex = cascadeVertices[2]; // this is the mother vertex
161 const std::vector< std::vector<TLorentzVector> > &moms = cascade_info->getParticleMoms();
162
163 // Set links to cascade vertices
164 std::vector<VertexLink> precedingVertexLinks;
165 VertexLink vertexLink1;
166 vertexLink1.setElement(cascadeVertices[0]);
167 vertexLink1.setStorableObject(*VtxWriteHandles[0].ptr());
168 if( vertexLink1.isValid() ) precedingVertexLinks.push_back( vertexLink1 );
169 VertexLink vertexLink2;
170 vertexLink2.setElement(cascadeVertices[1]);
171 vertexLink2.setStorableObject(*VtxWriteHandles[1].ptr());
172 if( vertexLink2.isValid() ) precedingVertexLinks.push_back( vertexLink2 );
173 CascadeLinksDecor(*mainVertex) = precedingVertexLinks;
174
175 // Identify the input Psi2
176 const xAOD::Vertex* psi2Vertex(0);
177 if(m_vtx2Daug_num==4) psi2Vertex = BPhysPVCascadeTools::FindVertex<4>(psi2Container.cptr(), cascadeVertices[1]);
178 else psi2Vertex = BPhysPVCascadeTools::FindVertex<3>(psi2Container.cptr(), cascadeVertices[1]);
179 // Identify the input Psi1
180 const xAOD::Vertex* psi1Vertex(0);
181 if(m_vtx1Daug_num==4) psi1Vertex = BPhysPVCascadeTools::FindVertex<4>(psi1Container.cptr(), cascadeVertices[0]);
182 else psi1Vertex = BPhysPVCascadeTools::FindVertex<3>(psi1Container.cptr(), cascadeVertices[0]);
183
184 // Set links to input vertices
185 std::vector<const xAOD::Vertex*> psi2VerticestoLink;
186 if(psi2Vertex) psi2VerticestoLink.push_back(psi2Vertex);
187 else ATH_MSG_WARNING("Could not find linking Jpsi");
188 if(!BPhysPVCascadeTools::LinkVertices(Psi2LinksDecor, psi2VerticestoLink, psi2Container.cptr(), mainVertex)) ATH_MSG_ERROR("Error decorating with Psi2 vertex");
189
190 std::vector<const xAOD::Vertex*> psi1VerticestoLink;
191 if(psi1Vertex) psi1VerticestoLink.push_back(psi1Vertex);
192 else ATH_MSG_WARNING("Could not find linking Psi1");
193 if(!BPhysPVCascadeTools::LinkVertices(Psi1LinksDecor, psi1VerticestoLink, psi1Container.cptr(), mainVertex)) ATH_MSG_ERROR("Error decorating with Psi1 vertex");
194
195 xAOD::BPhysHypoHelper vtx(m_hypoName, mainVertex);
196
197 // Get refitted track momenta from all vertices, charged tracks only
198 BPhysPVCascadeTools::SetVectorInfo(vtx, cascade_info);
199 vtx.setPass(true);
200
201 //
202 // Decorate main vertex
203 //
204 // mass, mass error
205 // https://gitlab.cern.ch/atlas/athena/-/blob/21.2/Tracking/TrkVertexFitter/TrkVKalVrtFitter/TrkVKalVrtFitter/VxCascadeInfo.h
206 BPHYS_CHECK( vtx.setMass(m_CascadeTools->invariantMass(moms[2])) );
207 BPHYS_CHECK( vtx.setMassErr(m_CascadeTools->invariantMassError(moms[2],cascade_info->getCovariance()[1])) );
208 // pt and pT error (the default pt of mainVertex is != the pt of the full cascade fit!)
209 Pt_decor(*mainVertex) = m_CascadeTools->pT(moms[2]);
210 PtErr_decor(*mainVertex) = m_CascadeTools->pTError(moms[2],cascade_info->getCovariance()[1]);
211 // chi2 and ndof (the default chi2 of mainVertex is != the chi2 of the full cascade fit!)
212 chi2_decor(*mainVertex) = cascade_info->fitChi2();
213 ndof_decor(*mainVertex) = cascade_info->nDoF();
214 chi2_nc_decor(*mainVertex) = cascade_info_noConstr ? cascade_info_noConstr->fitChi2() : -999999.;
215 ndof_nc_decor(*mainVertex) = cascade_info_noConstr ? cascade_info_noConstr->nDoF() : -1;
216
217 // decorate the Psi1 vertex
218 chi2_SV1_decor(*cascadeVertices[0]) = m_V0Tools->chisq(cascadeVertices[0]);
219 chi2_nc_SV1_decor(*cascadeVertices[0]) = cascade_info_noConstr ? m_V0Tools->chisq(cascade_info_noConstr->vertices()[0]) : -999999.;
220 chi2_V1_decor(*cascadeVertices[0]) = m_V0Tools->chisq(psi1Vertex);
221 ndof_V1_decor(*cascadeVertices[0]) = m_V0Tools->ndof(psi1Vertex);
222 lxy_SV1_decor(*cascadeVertices[0]) = m_CascadeTools->lxy(moms[0],cascadeVertices[0],mainVertex);
223 lxyErr_SV1_decor(*cascadeVertices[0]) = m_CascadeTools->lxyError(moms[0],cascade_info->getCovariance()[0],cascadeVertices[0],mainVertex);
224 a0z_SV1_decor(*cascadeVertices[0]) = m_CascadeTools->a0z(moms[0],cascadeVertices[0],mainVertex);
225 a0zErr_SV1_decor(*cascadeVertices[0]) = m_CascadeTools->a0zError(moms[0],cascade_info->getCovariance()[0],cascadeVertices[0],mainVertex);
226 a0xy_SV1_decor(*cascadeVertices[0]) = m_CascadeTools->a0xy(moms[0],cascadeVertices[0],mainVertex);
227 a0xyErr_SV1_decor(*cascadeVertices[0]) = m_CascadeTools->a0xyError(moms[0],cascade_info->getCovariance()[0],cascadeVertices[0],mainVertex);
228
229 // decorate the Psi2 vertex
230 chi2_SV2_decor(*cascadeVertices[1]) = m_V0Tools->chisq(cascadeVertices[1]);
231 chi2_nc_SV2_decor(*cascadeVertices[1]) = cascade_info_noConstr ? m_V0Tools->chisq(cascade_info_noConstr->vertices()[1]) : -999999.;
232 chi2_V2_decor(*cascadeVertices[1]) = m_V0Tools->chisq(psi2Vertex);
233 ndof_V2_decor(*cascadeVertices[1]) = m_V0Tools->ndof(psi2Vertex);
234 lxy_SV2_decor(*cascadeVertices[1]) = m_CascadeTools->lxy(moms[1],cascadeVertices[1],mainVertex);
235 lxyErr_SV2_decor(*cascadeVertices[1]) = m_CascadeTools->lxyError(moms[1],cascade_info->getCovariance()[1],cascadeVertices[1],mainVertex);
236 a0z_SV2_decor(*cascadeVertices[1]) = m_CascadeTools->a0z(moms[1],cascadeVertices[1],mainVertex);
237 a0zErr_SV2_decor(*cascadeVertices[1]) = m_CascadeTools->a0zError(moms[1],cascade_info->getCovariance()[1],cascadeVertices[1],mainVertex);
238 a0xy_SV2_decor(*cascadeVertices[1]) = m_CascadeTools->a0xy(moms[1],cascadeVertices[1],mainVertex);
239 a0xyErr_SV2_decor(*cascadeVertices[1]) = m_CascadeTools->a0xyError(moms[1],cascade_info->getCovariance()[1],cascadeVertices[1],mainVertex);
240
241 double Mass_Moth = m_CascadeTools->invariantMass(moms[2]); // size=2
242 ATH_CHECK(helper.FillCandwithRefittedVertices(m_refitPV, pvContainer.cptr(), m_refitPV ? refPvContainer.ptr() : 0, &(*m_pvRefitter), m_PV_max, m_DoVertexType, cascade_info, 2, Mass_Moth, vtx));
243 } // loop over cascadeinfoContainer
244
245 // Deleting cascadeinfo since this won't be stored.
246 // Vertices have been kept in m_cascadeOutputs and should be owned by their container
247 for (auto cascade_info : cascadeinfoContainer) delete cascade_info;
248 for (auto cascade_info_noConstr : cascadeinfoContainer_noConstr) delete cascade_info_noConstr;
249
250 return StatusCode::SUCCESS;
251 }
252
253 PsiPlusPsiCascade::PsiPlusPsiCascade(const std::string& type, const std::string& name, const IInterface* parent) : base_class(type,name,parent),
254 m_vertexPsi1ContainerKey(""),
255 m_vertexPsi2ContainerKey(""),
256 m_cascadeOutputsKeys({"PsiPlusPsiCascadeVtx1", "PsiPlusPsiCascadeVtx2", "PsiPlusPsiCascadeVtx3"}),
257 m_VxPrimaryCandidateName("PrimaryVertices"),
258 m_trackContainerName("InDetTrackParticles"),
259 m_eventInfo_key("EventInfo"),
260 m_jpsi1MassLower(0.0),
261 m_jpsi1MassUpper(20000.0),
262 m_jpsi2MassLower(0.0),
263 m_jpsi2MassUpper(20000.0),
264 m_diTrack1MassLower(-1.0),
265 m_diTrack1MassUpper(-1.0),
266 m_diTrack2MassLower(-1.0),
267 m_diTrack2MassUpper(-1.0),
268 m_psi1MassLower(0.0),
269 m_psi1MassUpper(25000.0),
270 m_psi2MassLower(0.0),
271 m_psi2MassUpper(25000.0),
272 m_MassLower(0.0),
273 m_MassUpper(31000.0),
274 m_vtx1Daug_num(4),
275 m_vtx1Daug1MassHypo(-1),
276 m_vtx1Daug2MassHypo(-1),
277 m_vtx1Daug3MassHypo(-1),
278 m_vtx1Daug4MassHypo(-1),
279 m_vtx2Daug_num(4),
280 m_vtx2Daug1MassHypo(-1),
281 m_vtx2Daug2MassHypo(-1),
282 m_vtx2Daug3MassHypo(-1),
283 m_vtx2Daug4MassHypo(-1),
284 m_massPsi1(-1),
285 m_massPsi2(-1),
286 m_massJpsi1(-1),
287 m_massJpsi2(-1),
288 m_massDiTrk1(-1),
289 m_massDiTrk2(-1),
290 m_constrPsi1(false),
291 m_constrPsi2(false),
292 m_constrJpsi1(false),
293 m_constrJpsi2(false),
294 m_constrDiTrk1(false),
295 m_constrDiTrk2(false),
296 m_chi2cut_Psi1(-1.0),
297 m_chi2cut_Psi2(-1.0),
298 m_chi2cut(-1.0),
299 m_removeDuplicatePairs(false),
300 m_maxCandidates(0),
301 m_iVertexFitter("Trk::TrkVKalVrtFitter"),
302 m_pvRefitter("Analysis::PrimaryVertexRefitter"),
303 m_V0Tools("Trk::V0Tools"),
304 m_CascadeTools("DerivationFramework::CascadeTools")
305 {
306 declareProperty("Psi1Vertices", m_vertexPsi1ContainerKey);
307 declareProperty("Psi2Vertices", m_vertexPsi2ContainerKey);
308 declareProperty("Psi1VtxHypoNames", m_vertexPsi1HypoNames);
309 declareProperty("Psi2VtxHypoNames", m_vertexPsi2HypoNames);
310 declareProperty("VxPrimaryCandidateName", m_VxPrimaryCandidateName);
311 declareProperty("TrackContainerName", m_trackContainerName);
312 declareProperty("RefPVContainerName", m_refPVContainerName = "RefittedPrimaryVertices");
313 declareProperty("Jpsi1MassLowerCut", m_jpsi1MassLower);
314 declareProperty("Jpsi1MassUpperCut", m_jpsi1MassUpper);
315 declareProperty("Jpsi2MassLowerCut", m_jpsi2MassLower);
316 declareProperty("Jpsi2MassUpperCut", m_jpsi2MassUpper);
317 declareProperty("DiTrack1MassLower", m_diTrack1MassLower); // only effective when m_vtx1Daug_num=4
318 declareProperty("DiTrack1MassUpper", m_diTrack1MassUpper); // only effective when m_vtx1Daug_num=4
319 declareProperty("DiTrack2MassLower", m_diTrack2MassLower); // only effective when m_vtx2Daug_num=4
320 declareProperty("DiTrack2MassUpper", m_diTrack2MassUpper); // only effective when m_vtx2Daug_num=4
321 declareProperty("Psi1MassLowerCut", m_psi1MassLower);
322 declareProperty("Psi1MassUpperCut", m_psi1MassUpper);
323 declareProperty("Psi2MassLowerCut", m_psi2MassLower);
324 declareProperty("Psi2MassUpperCut", m_psi2MassUpper);
325 declareProperty("MassLowerCut", m_MassLower);
326 declareProperty("MassUpperCut", m_MassUpper);
327 declareProperty("HypothesisName", m_hypoName = "TQ");
328 declareProperty("NumberOfPsi1Daughters", m_vtx1Daug_num); // 3 or 4 only
329 declareProperty("Vtx1Daug1MassHypo", m_vtx1Daug1MassHypo);
330 declareProperty("Vtx1Daug2MassHypo", m_vtx1Daug2MassHypo);
331 declareProperty("Vtx1Daug3MassHypo", m_vtx1Daug3MassHypo);
332 declareProperty("Vtx1Daug4MassHypo", m_vtx1Daug4MassHypo);
333 declareProperty("NumberOfPsi2Daughters", m_vtx2Daug_num); // 3 or 4 only
334 declareProperty("Vtx2Daug1MassHypo", m_vtx2Daug1MassHypo);
335 declareProperty("Vtx2Daug2MassHypo", m_vtx2Daug2MassHypo);
336 declareProperty("Vtx2Daug3MassHypo", m_vtx2Daug3MassHypo);
337 declareProperty("Vtx2Daug4MassHypo", m_vtx2Daug4MassHypo);
338 declareProperty("Jpsi1Mass", m_massJpsi1);
339 declareProperty("Jpsi2Mass", m_massJpsi2);
340 declareProperty("DiTrack1Mass", m_massDiTrk1);
341 declareProperty("DiTrack2Mass", m_massDiTrk2);
342 declareProperty("Psi1Mass", m_massPsi1);
343 declareProperty("Psi2Mass", m_massPsi2);
344 declareProperty("ApplyPsi1MassConstraint", m_constrPsi1);
345 declareProperty("ApplyPsi2MassConstraint", m_constrPsi2);
346 declareProperty("ApplyJpsi1MassConstraint", m_constrJpsi1);
347 declareProperty("ApplyJpsi2MassConstraint", m_constrJpsi2);
348 declareProperty("ApplyDiTrk1MassConstraint",m_constrDiTrk1); // only effective when m_vtx1Daug_num=4
349 declareProperty("ApplyDiTrk2MassConstraint",m_constrDiTrk2); // only effective when m_vtx2Daug_num=4
350 declareProperty("Chi2CutPsi1", m_chi2cut_Psi1);
351 declareProperty("Chi2CutPsi2", m_chi2cut_Psi2);
352 declareProperty("Chi2Cut", m_chi2cut);
353 declareProperty("RemoveDuplicatePairs", m_removeDuplicatePairs); // only effective when m_vertexPsi1ContainerKey == m_vertexPsi2ContainerKey
354 declareProperty("MaxCandidates", m_maxCandidates);
355 declareProperty("RefitPV", m_refitPV = true);
356 declareProperty("MaxnPV", m_PV_max = 1000);
357 declareProperty("MinNTracksInPV", m_PV_minNTracks = 0);
358 declareProperty("DoVertexType", m_DoVertexType = 7);
359 declareProperty("TrkVertexFitterTool", m_iVertexFitter);
360 declareProperty("PVRefitter", m_pvRefitter);
361 declareProperty("V0Tools", m_V0Tools);
362 declareProperty("CascadeTools", m_CascadeTools);
363 declareProperty("CascadeVertexCollections", m_cascadeOutputsKeys);
364 }
365
366 StatusCode PsiPlusPsiCascade::performSearch(std::vector<Trk::VxCascadeInfo*> *cascadeinfoContainer, std::vector<Trk::VxCascadeInfo*> *cascadeinfoContainer_noConstr, const EventContext& ctx) const {
367 ATH_MSG_DEBUG( "PsiPlusPsiCascade::performSearch" );
368 assert(cascadeinfoContainer!=nullptr && cascadeinfoContainer_noConstr!=nullptr);
369
370 // Get TrackParticle container (for setting links to the original tracks)
371 SG::ReadHandle<xAOD::TrackParticleContainer> trackContainer(m_trackContainerName, ctx);
372 ATH_CHECK( trackContainer.isValid() );
373
374 std::vector<const xAOD::TrackParticle*> tracksJpsi1;
375 std::vector<const xAOD::TrackParticle*> tracksJpsi2;
376 std::vector<const xAOD::TrackParticle*> tracksDiTrk1;
377 std::vector<const xAOD::TrackParticle*> tracksDiTrk2;
378 std::vector<const xAOD::TrackParticle*> tracksPsi1;
379 std::vector<const xAOD::TrackParticle*> tracksPsi2;
380 std::vector<double> massesPsi1;
381 massesPsi1.push_back(m_vtx1Daug1MassHypo);
382 massesPsi1.push_back(m_vtx1Daug2MassHypo);
383 massesPsi1.push_back(m_vtx1Daug3MassHypo);
384 if(m_vtx1Daug_num==4) massesPsi1.push_back(m_vtx1Daug4MassHypo);
385 std::vector<double> massesPsi2;
386 massesPsi2.push_back(m_vtx2Daug1MassHypo);
387 massesPsi2.push_back(m_vtx2Daug2MassHypo);
388 massesPsi2.push_back(m_vtx2Daug3MassHypo);
389 if(m_vtx2Daug_num==4) massesPsi2.push_back(m_vtx2Daug4MassHypo);
390
391 // Get Psi1 container
392 SG::ReadHandle<xAOD::VertexContainer> psi1Container(m_vertexPsi1ContainerKey, ctx);
393 ATH_CHECK( psi1Container.isValid() );
394
395 // Get Psi2 container
396 SG::ReadHandle<xAOD::VertexContainer> psi2Container(m_vertexPsi2ContainerKey, ctx);
397 ATH_CHECK( psi2Container.isValid() );
398
399 // Select the Psi2 candidates before calling cascade fit
400 std::vector<const xAOD::Vertex*> selectedPsi2Candidates;
401 for(auto vxcItr=psi2Container.cptr()->cbegin(); vxcItr!=psi2Container.cptr()->cend(); ++vxcItr) {
402 // Check the passed flag first
403 const xAOD::Vertex* vtx = *vxcItr;
404 bool passed = false;
405 for(size_t i=0; i<m_vertexPsi2HypoNames.size(); i++) {
406 SG::AuxElement::Accessor<Char_t> flagAcc("passed_"+m_vertexPsi2HypoNames[i]);
407 if(flagAcc.isAvailable(*vtx) && flagAcc(*vtx)) {
408 passed |= 1;
409 }
410 }
411 if(m_vertexPsi2HypoNames.size() && !passed) continue;
412
413 // Check Psi2 candidate invariant mass and skip if need be
414 double mass_psi2 = m_V0Tools->invariantMass(*vxcItr, massesPsi2);
415 if (mass_psi2 < m_psi2MassLower || mass_psi2 > m_psi2MassUpper) continue;
416
417 // Add loose cut on Jpsi2 mass from Psi2 -> Jpsi2 pi+ pi-, or on phi mass from Ds+ -> phi pi+
418 TLorentzVector p4_mu1, p4_mu2;
419 p4_mu1.SetPtEtaPhiM( (*vxcItr)->trackParticle(0)->pt(),
420 (*vxcItr)->trackParticle(0)->eta(),
421 (*vxcItr)->trackParticle(0)->phi(), m_vtx2Daug1MassHypo);
422 p4_mu2.SetPtEtaPhiM( (*vxcItr)->trackParticle(1)->pt(),
423 (*vxcItr)->trackParticle(1)->eta(),
424 (*vxcItr)->trackParticle(1)->phi(), m_vtx2Daug2MassHypo);
425 double mass_jpsi2 = (p4_mu1 + p4_mu2).M();
426 if (mass_jpsi2 < m_jpsi2MassLower || mass_jpsi2 > m_jpsi2MassUpper) continue;
427
428 if(m_vtx2Daug_num==4 && m_diTrack2MassLower>=0 && m_diTrack2MassUpper>=0) {
429 TLorentzVector p4_trk1, p4_trk2;
430 p4_trk1.SetPtEtaPhiM( (*vxcItr)->trackParticle(2)->pt(),
431 (*vxcItr)->trackParticle(2)->eta(),
432 (*vxcItr)->trackParticle(2)->phi(), m_vtx2Daug3MassHypo);
433 p4_trk2.SetPtEtaPhiM( (*vxcItr)->trackParticle(3)->pt(),
434 (*vxcItr)->trackParticle(3)->eta(),
435 (*vxcItr)->trackParticle(3)->phi(), m_vtx2Daug4MassHypo);
436 double mass_diTrk2 = (p4_trk1 + p4_trk2).M();
437 if (mass_diTrk2 < m_diTrack2MassLower || mass_diTrk2 > m_diTrack2MassUpper) continue;
438 }
439
440 double chi2DOF = (*vxcItr)->chiSquared()/(*vxcItr)->numberDoF();
441 if(m_chi2cut_Psi2>0 && chi2DOF>m_chi2cut_Psi2) continue;
442
443 selectedPsi2Candidates.push_back(*vxcItr);
444 }
445 if(selectedPsi2Candidates.size()==0) return StatusCode::SUCCESS;
446
447 // Select the Psi1 candidates before calling cascade fit
448 std::vector<const xAOD::Vertex*> selectedPsi1Candidates;
449 for(auto vxcItr=psi1Container.cptr()->cbegin(); vxcItr!=psi1Container.cptr()->cend(); ++vxcItr) {
450 // Check the passed flag first
451 const xAOD::Vertex* vtx = *vxcItr;
452 bool passed = false;
453 for(size_t i=0; i<m_vertexPsi1HypoNames.size(); i++) {
454 SG::AuxElement::Accessor<Char_t> flagAcc("passed_"+m_vertexPsi1HypoNames[i]);
455 if(flagAcc.isAvailable(*vtx) && flagAcc(*vtx)) {
456 passed |= 1;
457 }
458 }
459 if(m_vertexPsi1HypoNames.size() && !passed) continue;
460
461 // Check Psi candidate invariant mass and skip if need be
462 double mass_psi1 = m_V0Tools->invariantMass(*vxcItr,massesPsi1);
463 if(mass_psi1 < m_psi1MassLower || mass_psi1 > m_psi1MassUpper) continue;
464
465 // Add loose cut on Jpsi1 mass from Psi1 -> Jpsi1 pi+ pi-, or on phi mass from Ds+ -> phi pi+
466 TLorentzVector p4_mu1, p4_mu2;
467 p4_mu1.SetPtEtaPhiM( (*vxcItr)->trackParticle(0)->pt(),
468 (*vxcItr)->trackParticle(0)->eta(),
469 (*vxcItr)->trackParticle(0)->phi(), m_vtx1Daug1MassHypo);
470 p4_mu2.SetPtEtaPhiM( (*vxcItr)->trackParticle(1)->pt(),
471 (*vxcItr)->trackParticle(1)->eta(),
472 (*vxcItr)->trackParticle(1)->phi(), m_vtx1Daug2MassHypo);
473 double mass_jpsi1 = (p4_mu1 + p4_mu2).M();
474 if (mass_jpsi1 < m_jpsi1MassLower || mass_jpsi1 > m_jpsi1MassUpper) continue;
475
476 if(m_vtx1Daug_num==4 && m_diTrack1MassLower>=0 && m_diTrack1MassUpper>=0) {
477 TLorentzVector p4_trk1, p4_trk2;
478 p4_trk1.SetPtEtaPhiM( (*vxcItr)->trackParticle(2)->pt(),
479 (*vxcItr)->trackParticle(2)->eta(),
480 (*vxcItr)->trackParticle(2)->phi(), m_vtx1Daug3MassHypo);
481 p4_trk2.SetPtEtaPhiM( (*vxcItr)->trackParticle(3)->pt(),
482 (*vxcItr)->trackParticle(3)->eta(),
483 (*vxcItr)->trackParticle(3)->phi(), m_vtx1Daug4MassHypo);
484 double mass_diTrk1 = (p4_trk1 + p4_trk2).M();
485 if (mass_diTrk1 < m_diTrack1MassLower || mass_diTrk1 > m_diTrack1MassUpper) continue;
486 }
487
488 double chi2DOF = (*vxcItr)->chiSquared()/(*vxcItr)->numberDoF();
489 if(m_chi2cut_Psi1>0 && chi2DOF>m_chi2cut_Psi1) continue;
490
491 selectedPsi1Candidates.push_back(*vxcItr);
492 }
493 if(selectedPsi1Candidates.size()==0) return StatusCode::SUCCESS;
494
495 std::vector<std::pair<const xAOD::Vertex*, const xAOD::Vertex*> > candidatePairs;
496 for(auto psi1Itr=selectedPsi1Candidates.cbegin(); psi1Itr!=selectedPsi1Candidates.cend(); ++psi1Itr) {
497 tracksPsi1.clear();
498 for(size_t i=0; i<(*psi1Itr)->nTrackParticles(); i++) tracksPsi1.push_back((*psi1Itr)->trackParticle(i));
499 for(auto psi2Itr=selectedPsi2Candidates.cbegin(); psi2Itr!=selectedPsi2Candidates.cend(); ++psi2Itr) {
500 bool skip = false;
501 for(size_t j=0; j<(*psi2Itr)->nTrackParticles(); j++) {
502 if(std::find(tracksPsi1.cbegin(), tracksPsi1.cend(), (*psi2Itr)->trackParticle(j)) != tracksPsi1.cend()) { skip = true; break; }
503 }
504 if(skip) continue;
505 if(m_vertexPsi1ContainerKey.key() == m_vertexPsi2ContainerKey.key()) {
506 for(size_t ic=0; ic<candidatePairs.size(); ic++) {
507 const xAOD::Vertex* psi1Vertex = candidatePairs[ic].first;
508 const xAOD::Vertex* psi2Vertex = candidatePairs[ic].second;
509 if((psi1Vertex == *psi1Itr && psi2Vertex == *psi2Itr) || (psi1Vertex == *psi2Itr && psi2Vertex == *psi1Itr)) { skip = true; break; }
510 }
511 }
512 if(skip) continue;
513 candidatePairs.push_back(std::pair<const xAOD::Vertex*, const xAOD::Vertex*>(*psi1Itr,*psi2Itr));
514 }
515 }
516
517 std::sort( candidatePairs.begin(), candidatePairs.end(), [](std::pair<const xAOD::Vertex*, const xAOD::Vertex*> a, std::pair<const xAOD::Vertex*, const xAOD::Vertex*> b) { return a.first->chiSquared()/a.first->numberDoF()+a.second->chiSquared()/a.second->numberDoF() < b.first->chiSquared()/b.first->numberDoF()+b.second->chiSquared()/b.second->numberDoF(); } );
518 if(m_maxCandidates>0 && candidatePairs.size()>m_maxCandidates) {
519 candidatePairs.erase(candidatePairs.begin()+m_maxCandidates, candidatePairs.end());
520 }
521
522 for(size_t ic=0; ic<candidatePairs.size(); ic++) {
523 const xAOD::Vertex* psi1Vertex = candidatePairs[ic].first;
524 const xAOD::Vertex* psi2Vertex = candidatePairs[ic].second;
525
526 tracksPsi1.clear();
527 for(size_t it=0; it<psi1Vertex->nTrackParticles(); it++) tracksPsi1.push_back(psi1Vertex->trackParticle(it));
528 if (tracksPsi1.size() != massesPsi1.size()) {
529 ATH_MSG_ERROR("Problems with Psi1 input: number of tracks or track mass inputs is not correct!");
530 }
531 tracksPsi2.clear();
532 for(size_t it=0; it<psi2Vertex->nTrackParticles(); it++) tracksPsi2.push_back(psi2Vertex->trackParticle(it));
533 if (tracksPsi2.size() != massesPsi2.size()) {
534 ATH_MSG_ERROR("Problems with Psi2 input: number of tracks or track mass inputs is not correct!");
535 }
536
537 tracksJpsi1.clear();
538 tracksJpsi1.push_back(psi1Vertex->trackParticle(0));
539 tracksJpsi1.push_back(psi1Vertex->trackParticle(1));
540 tracksDiTrk1.clear();
541 if(m_vtx1Daug_num==4) {
542 tracksDiTrk1.push_back(psi1Vertex->trackParticle(2));
543 tracksDiTrk1.push_back(psi1Vertex->trackParticle(3));
544 }
545 tracksJpsi2.clear();
546 tracksJpsi2.push_back(psi2Vertex->trackParticle(0));
547 tracksJpsi2.push_back(psi2Vertex->trackParticle(1));
548 tracksDiTrk2.clear();
549 if(m_vtx2Daug_num==4) {
550 tracksDiTrk2.push_back(psi2Vertex->trackParticle(2));
551 tracksDiTrk2.push_back(psi2Vertex->trackParticle(3));
552 }
553
554 TLorentzVector p4_moth;
555 TLorentzVector tmp;
556 for(size_t it=0; it<psi1Vertex->nTrackParticles(); it++) {
557 tmp.SetPtEtaPhiM(psi1Vertex->trackParticle(it)->pt(),psi1Vertex->trackParticle(it)->eta(),psi1Vertex->trackParticle(it)->phi(),massesPsi1[it]);
558 p4_moth += tmp;
559 }
560 for(size_t it=0; it<psi2Vertex->nTrackParticles(); it++) {
561 tmp.SetPtEtaPhiM(psi2Vertex->trackParticle(it)->pt(),psi2Vertex->trackParticle(it)->eta(),psi2Vertex->trackParticle(it)->phi(),massesPsi2[it]);
562 p4_moth += tmp;
563 }
564 if (p4_moth.M() < m_MassLower || p4_moth.M() > m_MassUpper) continue;
565
566 // Apply the user's settings to the fitter
567 std::unique_ptr<Trk::IVKalState> state = m_iVertexFitter->makeState(ctx);
568 // Robustness: http://cdsweb.cern.ch/record/685551
569 int robustness = 0;
570 m_iVertexFitter->setRobustness(robustness, *state);
571 // Build up the topology
572 // Vertex list
573 std::vector<Trk::VertexID> vrtList;
574 // Psi1 vertex
575 Trk::VertexID vID1;
576 // https://gitlab.cern.ch/atlas/athena/-/blob/21.2/Tracking/TrkVertexFitter/TrkVKalVrtFitter/TrkVKalVrtFitter/IVertexCascadeFitter.h
577 if (m_constrPsi1) {
578 vID1 = m_iVertexFitter->startVertex(tracksPsi1,massesPsi1,*state,m_massPsi1);
579 } else {
580 vID1 = m_iVertexFitter->startVertex(tracksPsi1,massesPsi1,*state);
581 }
582 vrtList.push_back(vID1);
583 // Psi2 vertex
584 Trk::VertexID vID2;
585 if (m_constrPsi2) {
586 vID2 = m_iVertexFitter->nextVertex(tracksPsi2,massesPsi2,*state,m_massPsi2);
587 } else {
588 vID2 = m_iVertexFitter->nextVertex(tracksPsi2,massesPsi2,*state);
589 }
590 vrtList.push_back(vID2);
591 // Mother vertex including Psi1 and Psi2
592 std::vector<const xAOD::TrackParticle*> tp; tp.clear();
593 std::vector<double> tp_masses; tp_masses.clear();
594 m_iVertexFitter->nextVertex(tp,tp_masses,vrtList,*state);
595 if (m_constrJpsi1) {
596 std::vector<Trk::VertexID> cnstV; cnstV.clear();
597 if ( !m_iVertexFitter->addMassConstraint(vID1,tracksJpsi1,cnstV,*state,m_massJpsi1).isSuccess() ) {
598 ATH_MSG_WARNING("addMassConstraint for Jpsi1 failed");
599 }
600 }
601 if (m_constrDiTrk1 && m_vtx1Daug_num==4 && m_massDiTrk1>0) {
602 std::vector<Trk::VertexID> cnstV; cnstV.clear();
603 if ( !m_iVertexFitter->addMassConstraint(vID1,tracksDiTrk1,cnstV,*state,m_massDiTrk1).isSuccess() ) {
604 ATH_MSG_WARNING("addMassConstraint for DiTrk1 failed");
605 }
606 }
607 if (m_constrJpsi2) {
608 std::vector<Trk::VertexID> cnstV; cnstV.clear();
609 if ( !m_iVertexFitter->addMassConstraint(vID2,tracksJpsi2,cnstV,*state,m_massJpsi2).isSuccess() ) {
610 ATH_MSG_WARNING("addMassConstraint for Jpsi2 failed");
611 }
612 }
613 if (m_constrDiTrk2 && m_vtx2Daug_num==4 && m_massDiTrk2>0) {
614 std::vector<Trk::VertexID> cnstV; cnstV.clear();
615 if ( !m_iVertexFitter->addMassConstraint(vID2,tracksDiTrk2,cnstV,*state,m_massDiTrk2).isSuccess() ) {
616 ATH_MSG_WARNING("addMassConstraint for DiTrk2 failed");
617 }
618 }
619 // Do the work
620 std::unique_ptr<Trk::VxCascadeInfo> result(m_iVertexFitter->fitCascade(*state));
621
622 bool pass = false;
623 if (result != nullptr) {
624 for(auto v : result->vertices()) {
625 if(v->nTrackParticles()==0) {
626 std::vector<ElementLink<xAOD::TrackParticleContainer> > nullLinkVector;
627 v->setTrackParticleLinks(nullLinkVector);
628 }
629 }
630 // reset links to original tracks
631 BPhysPVCascadeTools::PrepareVertexLinks(result.get(), trackContainer.cptr());
632
633 // necessary to prevent memory leak
634 result->setSVOwnership(true);
635
636 // Chi2/DOF cut
637 double chi2DOF = result->fitChi2()/result->nDoF();
638 bool chi2CutPassed = (m_chi2cut <= 0.0 || chi2DOF < m_chi2cut);
639
640 if(chi2CutPassed) {
641 cascadeinfoContainer->push_back(result.release());
642 pass = true;
643 }
644 }
645
646 // do cascade fit again without any mass constraints
647 if(pass) {
648 if(m_constrJpsi1 || m_constrPsi1 || m_constrJpsi2 || m_constrPsi2 || (m_constrDiTrk1 && m_vtx1Daug_num==4 && m_massDiTrk1>0) || (m_constrDiTrk2 && m_vtx2Daug_num==4 && m_massDiTrk2>0)) {
649 std::unique_ptr<Trk::IVKalState> state (m_iVertexFitter->makeState(ctx));
650 m_iVertexFitter->setRobustness(robustness, *state);
651 std::vector<Trk::VertexID> vrtList_nc;
652 // Psi1 vertex
653 Trk::VertexID vID1_nc = m_iVertexFitter->startVertex(tracksPsi1,massesPsi1,*state);
654 vrtList_nc.push_back(vID1_nc);
655 // Psi2 vertex
656 Trk::VertexID vID2_nc = m_iVertexFitter->nextVertex(tracksPsi2,massesPsi2,*state);
657 vrtList_nc.push_back(vID2_nc);
658 // Mother vertex including Psi1 and Psi2
659 std::vector<const xAOD::TrackParticle*> tp; tp.clear();
660 std::vector<double> tp_masses; tp_masses.clear();
661 m_iVertexFitter->nextVertex(tp,tp_masses,vrtList_nc,*state);
662 // Do the work
663 std::unique_ptr<Trk::VxCascadeInfo> result_nc(m_iVertexFitter->fitCascade(*state));
664
665 if (result_nc != nullptr) {
666 for(auto v : result_nc->vertices()) {
667 if(v->nTrackParticles()==0) {
668 std::vector<ElementLink<xAOD::TrackParticleContainer> > nullLinkVector;
669 v->setTrackParticleLinks(nullLinkVector);
670 }
671 }
672 // reset links to original tracks
673 BPhysPVCascadeTools::PrepareVertexLinks(result_nc.get(), trackContainer.cptr());
674
675 // necessary to prevent memory leak
676 result_nc->setSVOwnership(true);
677 cascadeinfoContainer_noConstr->push_back(result_nc.release());
678 }
679 else cascadeinfoContainer_noConstr->push_back(0);
680 }
681 else cascadeinfoContainer_noConstr->push_back(0);
682 }
683 } //Iterate over candidatePairs
684
685 return StatusCode::SUCCESS;
686 }
687}
ATH_CHECK
#define ATH_CHECK
Evaluate an expression and check for errors.
Definition AthCheckMacros.h:40
ATH_MSG_ERROR
#define ATH_MSG_ERROR(x)
Definition AthMsgStreamMacros.h:33
ATH_MSG_FATAL
#define ATH_MSG_FATAL(x)
Definition AthMsgStreamMacros.h:34
ATH_MSG_WARNING
#define ATH_MSG_WARNING(x)
Definition AthMsgStreamMacros.h:32
ATH_MSG_DEBUG
#define ATH_MSG_DEBUG(x)
Definition AthMsgStreamMacros.h:29
BPHYS_CHECK
#define BPHYS_CHECK(EXP)
Useful CHECK macro.
Definition BPhysHelper.h:738
BPhysHypoHelper.h
: B-physics xAOD helpers.
HepMCHelpers.h
ATLAS-specific HepMC functions.
passed
bool passed(DecisionID id, const DecisionIDContainer &)
checks if required decision ID is in the set of IDs in the container
Definition TrigCompositeUtilsRoot.cxx:118
a
static Double_t a
Definition LArPhysWaveHECTool.cxx:38
DerivationFramework::BPhysPVCascadeTools::LinkVertices
static bool LinkVertices(SG::AuxElement::Decorator< VertexLinkVector > &decor, const std::vector< const xAOD::Vertex * > &vertices, const xAOD::VertexContainer *vertexContainer, const xAOD::Vertex *vert)
Definition BPhysPVCascadeTools.cxx:459
DerivationFramework::BPhysPVCascadeTools::PrepareVertexLinks
static void PrepareVertexLinks(Trk::VxCascadeInfo *result, const xAOD::TrackParticleContainer *importedTrackCollection)
Definition BPhysPVCascadeTools.cxx:203
DerivationFramework::BPhysPVCascadeTools::FindVertex
static const xAOD::Vertex * FindVertex(const xAOD::VertexContainer *c, const xAOD::Vertex *v)
Definition BPhysPVCascadeTools.h:140
DerivationFramework::BPhysPVCascadeTools::SetVectorInfo
static void SetVectorInfo(xAOD::BPhysHelper &, const Trk::VxCascadeInfo *)
Definition BPhysPVCascadeTools.cxx:423
DerivationFramework::PsiPlusPsiCascade::m_cascadeOutputsKeys
SG::WriteHandleKeyArray< xAOD::VertexContainer > m_cascadeOutputsKeys
Definition PsiPlusPsiCascade.h:46
DerivationFramework::PsiPlusPsiCascade::m_vertexPsi1ContainerKey
SG::ReadHandleKey< xAOD::VertexContainer > m_vertexPsi1ContainerKey
Definition PsiPlusPsiCascade.h:42
DerivationFramework::PsiPlusPsiCascade::initialize
virtual StatusCode initialize() override
Definition PsiPlusPsiCascade.cxx:23
DerivationFramework::PsiPlusPsiCascade::m_CascadeTools
PublicToolHandle< DerivationFramework::CascadeTools > m_CascadeTools
Definition PsiPlusPsiCascade.h:97
DerivationFramework::PsiPlusPsiCascade::m_eventInfo_key
SG::ReadHandleKey< xAOD::EventInfo > m_eventInfo_key
Definition PsiPlusPsiCascade.h:49
DerivationFramework::PsiPlusPsiCascade::m_V0Tools
PublicToolHandle< Trk::V0Tools > m_V0Tools
Definition PsiPlusPsiCascade.h:96
DerivationFramework::PsiPlusPsiCascade::m_iVertexFitter
ToolHandle< Trk::TrkVKalVrtFitter > m_iVertexFitter
Definition PsiPlusPsiCascade.h:94
DerivationFramework::PsiPlusPsiCascade::m_vertexPsi1HypoNames
std::vector< std::string > m_vertexPsi1HypoNames
Definition PsiPlusPsiCascade.h:44
DerivationFramework::PsiPlusPsiCascade::addBranches
virtual StatusCode addBranches(const EventContext &ctx) const override
Definition PsiPlusPsiCascade.cxx:61
DerivationFramework::PsiPlusPsiCascade::m_pvRefitter
PublicToolHandle< Analysis::PrimaryVertexRefitter > m_pvRefitter
Definition PsiPlusPsiCascade.h:95
DerivationFramework::PsiPlusPsiCascade::m_vertexPsi2ContainerKey
SG::ReadHandleKey< xAOD::VertexContainer > m_vertexPsi2ContainerKey
Definition PsiPlusPsiCascade.h:43
DerivationFramework::PsiPlusPsiCascade::m_vertexPsi2HypoNames
std::vector< std::string > m_vertexPsi2HypoNames
Definition PsiPlusPsiCascade.h:45
DerivationFramework::PsiPlusPsiCascade::performSearch
StatusCode performSearch(std::vector< Trk::VxCascadeInfo * > *cascadeinfoContainer, std::vector< Trk::VxCascadeInfo * > *cascadeinfoContainer_noConstr, const EventContext &ctx) const
Definition PsiPlusPsiCascade.cxx:366
DerivationFramework::PsiPlusPsiCascade::m_VxPrimaryCandidateName
SG::ReadHandleKey< xAOD::VertexContainer > m_VxPrimaryCandidateName
Name of primary vertex container.
Definition PsiPlusPsiCascade.h:47
DerivationFramework::PsiPlusPsiCascade::PsiPlusPsiCascade
PsiPlusPsiCascade(const std::string &type, const std::string &name, const IInterface *parent)
Definition PsiPlusPsiCascade.cxx:253
DerivationFramework::PsiPlusPsiCascade::m_refPVContainerName
SG::WriteHandleKey< xAOD::VertexContainer > m_refPVContainerName
Definition PsiPlusPsiCascade.h:100
DerivationFramework::PsiPlusPsiCascade::m_trackContainerName
SG::ReadHandleKey< xAOD::TrackParticleContainer > m_trackContainerName
Definition PsiPlusPsiCascade.h:48
SG::ReadHandle::isValid
virtual bool isValid() override final
Can the handle be successfully dereferenced?
SG::ReadHandle::cptr
const_pointer_type cptr()
Dereference the pointer.
SG::WriteHandleKey
Property holding a SG store/key/clid from which a WriteHandle is made.
Definition StoreGate/StoreGate/WriteHandleKey.h:40
SG::WriteHandle::record
StatusCode record(std::unique_ptr< T > data)
Record a const object to the store.
SG::WriteHandle::ptr
pointer_type ptr()
Dereference the pointer.
Trk::VxCascadeInfo::fitChi2
double fitChi2() const
Definition VxCascadeInfo.h:78
Trk::VxCascadeInfo::getCovariance
const std::vector< Amg::MatrixX > & getCovariance() const
Definition VxCascadeInfo.h:76
Trk::VxCascadeInfo::getParticleMoms
const std::vector< std::vector< TLorentzVector > > & getParticleMoms() const
Definition VxCascadeInfo.h:75
Trk::VxSecVertexInfo::vertices
const std::vector< xAOD::Vertex * > & vertices() const
Definition VxSecVertexInfo.cxx:88
Trk::VxSecVertexInfo::setSVOwnership
void setSVOwnership(bool Ownership)
Definition VxSecVertexInfo.h:74
xAOD::BPhysHypoHelper::setMass
bool setMass(const float val)
Set given invariant mass and its error.
Definition BPhysHypoHelper.cxx:52
xAOD::BPhysHypoHelper::setPass
bool setPass(bool passVal)
get the pass flag for this hypothesis
Definition BPhysHypoHelper.cxx:367
xAOD::BPhysHypoHelper::setMassErr
bool setMassErr(const float val)
invariant mass error
Definition BPhysHypoHelper.cxx:57
xAOD::TrackParticle_v1::phi
virtual double phi() const override final
The azimuthal angle ( ) of the particle (has range to .).
xAOD::TrackParticle_v1::pt
virtual double pt() const override final
The transverse momentum ( ) of the particle.
Definition TrackParticle_v1.cxx:75
xAOD::TrackParticle_v1::eta
virtual double eta() const override final
The pseudorapidity ( ) of the particle.
Definition TrackParticle_v1.cxx:79
xAOD::Vertex_v1::nTrackParticles
size_t nTrackParticles() const
Get the number of tracks associated with this vertex.
Definition Vertex_v1.cxx:292
xAOD::Vertex_v1::trackParticle
const TrackParticle * trackParticle(size_t i) const
Get the pointer to a given track that was used in vertex reco.
Definition Vertex_v1.cxx:271
DerivationFramework
THE reconstruction tool.
Definition CascadeTools.h:16
DerivationFramework::VertexLink
ElementLink< xAOD::VertexContainer > VertexLink
Definition JpsiPlusDpstCascade.cxx:23
DerivationFramework::VertexLinkVector
std::vector< VertexLink > VertexLinkVector
Definition JpsiPlusDpstCascade.cxx:24
MC::PSI2S
static const int PSI2S
Definition HepMCHelpers.h:130
MC::MUON
static const int MUON
Definition HepMCHelpers.h:78
MC::PIPLUS
static const int PIPLUS
Definition HepMCHelpers.h:110
MC::JPSI
static const int JPSI
Definition HepMCHelpers.h:122
std::sort
void sort(typename DataModel_detail::iterator< DVL > beg, typename DataModel_detail::iterator< DVL > end)
Specialization of sort for DataVector/List.
Definition DVL_algorithms.h:554
xAOD::Vertex
Vertex_v1 Vertex
Define the latest version of the vertex class.
Definition Event/xAOD/xAODTracking/xAODTracking/Vertex.h:16
type
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