File indexing completed on 2024-04-06 12:31:59
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0006 #include "FWCore/Framework/interface/Frameworkfwd.h"
0007 #include "FWCore/Framework/interface/one/EDAnalyzer.h"
0008 #include "FWCore/Framework/interface/Event.h"
0009 #include "FWCore/Framework/interface/MakerMacros.h"
0010 #include "FWCore/Framework/interface/EventSetup.h"
0011 #include "FWCore/Framework/interface/ESHandle.h"
0012
0013 #include "DataFormats/CTPPSDetId/interface/CTPPSDetId.h"
0014
0015 #include "CondTools/RunInfo/interface/LHCInfoCombined.h"
0016
0017 #include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"
0018
0019 #include "DataFormats/ProtonReco/interface/ForwardProton.h"
0020 #include "DataFormats/ProtonReco/interface/ForwardProtonFwd.h"
0021 #include "DataFormats/CTPPSReco/interface/CTPPSLocalTrackLite.h"
0022
0023 #include "TFile.h"
0024 #include "TH1D.h"
0025 #include "TH2D.h"
0026 #include "TProfile.h"
0027 #include "TGraphErrors.h"
0028
0029 #include "CLHEP/Units/GlobalPhysicalConstants.h"
0030
0031 #include <map>
0032 #include <string>
0033
0034
0035
0036 class CTPPSProtonReconstructionSimulationValidator : public edm::one::EDAnalyzer<> {
0037 public:
0038 explicit CTPPSProtonReconstructionSimulationValidator(const edm::ParameterSet &);
0039
0040 static void fillDescriptions(edm::ConfigurationDescriptions &descriptions);
0041
0042 private:
0043 void analyze(const edm::Event &, const edm::EventSetup &) override;
0044 void endJob() override;
0045
0046 void fillPlots(unsigned int meth_idx,
0047 unsigned int idx,
0048 const reco::ForwardProton &rec_pr,
0049 const HepMC::FourVector &vtx,
0050 const HepMC::FourVector &mom,
0051 const double energy);
0052
0053 edm::EDGetTokenT<edm::HepMCProduct> tokenHepMCBeforeSmearing_;
0054 edm::EDGetTokenT<edm::HepMCProduct> tokenHepMCAfterSmearing_;
0055
0056 edm::EDGetTokenT<reco::ForwardProtonCollection> tokenRecoProtonsSingleRP_;
0057 edm::EDGetTokenT<reco::ForwardProtonCollection> tokenRecoProtonsMultiRP_;
0058
0059 const edm::ESGetToken<LHCInfo, LHCInfoRcd> lhcInfoToken_;
0060 const edm::ESGetToken<LHCInfoPerLS, LHCInfoPerLSRcd> lhcInfoPerLSToken_;
0061 const edm::ESGetToken<LHCInfoPerFill, LHCInfoPerFillRcd> lhcInfoPerFillToken_;
0062 const bool useNewLHCInfo_;
0063
0064 std::string outputFile_;
0065
0066 struct PlotGroup {
0067 std::unique_ptr<TH1D> h_de_xi;
0068 std::unique_ptr<TProfile> p_de_xi_vs_xi_simu;
0069 std::unique_ptr<TH2D> h_xi_reco_vs_xi_simu;
0070
0071 std::unique_ptr<TH1D> h_de_th_x;
0072 std::unique_ptr<TProfile> p_de_th_x_vs_xi_simu;
0073
0074 std::unique_ptr<TH1D> h_de_th_y;
0075 std::unique_ptr<TProfile> p_de_th_y_vs_xi_simu;
0076
0077 std::unique_ptr<TH1D> h_de_vtx_y;
0078 std::unique_ptr<TProfile> p_de_vtx_y_vs_xi_simu;
0079
0080 std::unique_ptr<TH1D> h_de_t;
0081 std::unique_ptr<TProfile> p_de_t_vs_xi_simu, p_de_t_vs_t_simu;
0082 std::unique_ptr<TH2D> h2_de_t_vs_t_simu;
0083
0084 PlotGroup()
0085 : h_de_xi(new TH1D("", ";#xi_{reco} - #xi_{simu}", 100, 0., 0.)),
0086 p_de_xi_vs_xi_simu(new TProfile("", ";#xi_{simu};#xi_{reco} - #xi_{simu}", 50, 0., 0.25)),
0087 h_xi_reco_vs_xi_simu(new TH2D("", ";#xi_{simu};#xi_{reco}", 100, 0., 0.30, 100, 0., 0.30)),
0088
0089 h_de_th_x(new TH1D("", ";#theta_{x,reco} - #theta_{x,simu}", 100, 0., 0.)),
0090 p_de_th_x_vs_xi_simu(new TProfile("", ";#xi_{simu};#theta_{x,reco} - #theta_{x,simu}", 50, 0., 0.25)),
0091
0092 h_de_th_y(new TH1D("", ";#theta_{y,reco} - #theta_{y,simu}", 100, 0., 0.)),
0093 p_de_th_y_vs_xi_simu(new TProfile("", ";#xi_{simu};#theta_{y,reco} - #theta_{y,simu}", 50, 0., 0.25)),
0094
0095 h_de_vtx_y(new TH1D("", ";vtx_{y,reco} - vtx_{y,simu} (mm)", 100, 0., 0.)),
0096 p_de_vtx_y_vs_xi_simu(new TProfile("", ";#xi_{simu};vtx_{y,reco} - vtx_{y,simu} (mm)", 50, 0., 0.25)),
0097
0098 h_de_t(new TH1D("", ";t_{reco} - t_{simu}", 100, -1., +1.)),
0099 p_de_t_vs_xi_simu(new TProfile("", ";xi_{simu};t_{reco} - t_{simu}", 50, 0., 0.25)),
0100 p_de_t_vs_t_simu(new TProfile("", ";t_{simu};t_{reco} - t_{simu}", 20, 0., 5.)),
0101 h2_de_t_vs_t_simu(new TH2D("", ";t_{simu};t_{reco} - t_{simu}", 150, 0., 5., 300, -2., +2.)) {}
0102
0103 static TGraphErrors profileToRMSGraph(TProfile *p, const char *name = "") {
0104 TGraphErrors gr_err;
0105 gr_err.SetName(name);
0106
0107 for (int bi = 1; bi <= p->GetNbinsX(); ++bi) {
0108 double c = p->GetBinCenter(bi);
0109 double w = p->GetBinWidth(bi);
0110
0111 double N = p->GetBinEntries(bi);
0112 double Sy = p->GetBinContent(bi) * N;
0113 double Syy = p->GetSumw2()->At(bi);
0114
0115 double si_sq = Syy / N - Sy * Sy / N / N;
0116 double si = (si_sq >= 0.) ? sqrt(si_sq) : 0.;
0117 double si_unc_sq = si_sq / 2. / N;
0118 double si_unc = (si_unc_sq >= 0.) ? sqrt(si_unc_sq) : 0.;
0119
0120 int idx = gr_err.GetN();
0121 gr_err.SetPoint(idx, c, si);
0122 gr_err.SetPointError(idx, w / 2., si_unc);
0123 }
0124
0125 return gr_err;
0126 }
0127
0128 void write() const {
0129 h_xi_reco_vs_xi_simu->Write("h_xi_reco_vs_xi_simu");
0130 h_de_xi->Write("h_de_xi");
0131 p_de_xi_vs_xi_simu->Write("p_de_xi_vs_xi_simu");
0132 profileToRMSGraph(p_de_xi_vs_xi_simu.get(), "g_rms_de_xi_vs_xi_simu").Write();
0133
0134 h_de_th_x->Write("h_de_th_x");
0135 p_de_th_x_vs_xi_simu->Write("p_de_th_x_vs_xi_simu");
0136 profileToRMSGraph(p_de_th_x_vs_xi_simu.get(), "g_rms_de_th_x_vs_xi_simu").Write();
0137
0138 h_de_th_y->Write("h_de_th_y");
0139 p_de_th_y_vs_xi_simu->Write("p_de_th_y_vs_xi_simu");
0140 profileToRMSGraph(p_de_th_y_vs_xi_simu.get(), "g_rms_de_th_y_vs_xi_simu").Write();
0141
0142 h_de_vtx_y->Write("h_de_vtx_y");
0143 p_de_vtx_y_vs_xi_simu->Write("p_de_vtx_y_vs_xi_simu");
0144 profileToRMSGraph(p_de_vtx_y_vs_xi_simu.get(), "g_rms_de_vtx_y_vs_xi_simu").Write();
0145
0146 h_de_t->Write("h_de_t");
0147 p_de_t_vs_xi_simu->Write("p_de_t_vs_xi_simu");
0148 profileToRMSGraph(p_de_t_vs_xi_simu.get(), "g_rms_de_t_vs_xi_simu").Write();
0149 p_de_t_vs_t_simu->Write("p_de_t_vs_t_simu");
0150 profileToRMSGraph(p_de_t_vs_t_simu.get(), "g_rms_de_t_vs_t_simu").Write();
0151 h2_de_t_vs_t_simu->Write("h2_de_t_vs_t_simu");
0152 }
0153 };
0154
0155 std::map<unsigned int, std::map<unsigned int, PlotGroup>> plots_;
0156
0157 struct DoubleArmPlotGroup {
0158 std::unique_ptr<TH2D> h2_t_sh_vs_vtx_t, h2_t_dh_vs_vtx_z;
0159 std::unique_ptr<TH1D> h_t_sh_minus_vtx_t, h_t_dh_minus_vtx_z;
0160
0161 DoubleArmPlotGroup()
0162 : h2_t_sh_vs_vtx_t(new TH2D("", ";vtx_t (mm);(t_56 + t_45)/2 (mm)", 100, -250., +250., 100, -250., +250.)),
0163 h2_t_dh_vs_vtx_z(new TH2D("", ";vtx_z (mm);(t_56 - t_45)/2 (mm)", 100, -250., +250., 100, -250., +250.)),
0164 h_t_sh_minus_vtx_t(new TH1D("", ";(t_56 + t_45)/2 - vtx_t (mm)", 100, -100., +100.)),
0165 h_t_dh_minus_vtx_z(new TH1D("", ";(t_56 - t_45)/2 - vtx_z (mm)", 100, -100., +100.)) {}
0166
0167 void fill(double time_45, double time_56, double vtx_z, double vtx_t) {
0168 const double t_sum_half = (time_56 + time_45) / 2. * CLHEP::c_light;
0169 const double t_dif_half = (time_56 - time_45) / 2. * CLHEP::c_light;
0170
0171 h2_t_sh_vs_vtx_t->Fill(vtx_t, t_sum_half);
0172 h_t_sh_minus_vtx_t->Fill(t_sum_half - vtx_t);
0173
0174 h2_t_dh_vs_vtx_z->Fill(vtx_z, t_dif_half);
0175 h_t_dh_minus_vtx_z->Fill(t_dif_half - vtx_z);
0176 }
0177
0178 void write() const {
0179 h2_t_sh_vs_vtx_t->Write("h2_t_sh_vs_vtx_t");
0180 h_t_sh_minus_vtx_t->Write("h_t_sh_minus_vtx_t");
0181
0182 h2_t_dh_vs_vtx_z->Write("h2_t_dh_vs_vtx_z");
0183 h_t_dh_minus_vtx_z->Write("h_t_dh_minus_vtx_z");
0184 }
0185 };
0186
0187 DoubleArmPlotGroup double_arm_plots_;
0188 };
0189
0190
0191
0192 using namespace std;
0193 using namespace edm;
0194 using namespace HepMC;
0195
0196
0197
0198 CTPPSProtonReconstructionSimulationValidator::CTPPSProtonReconstructionSimulationValidator(
0199 const edm::ParameterSet &iConfig)
0200 : tokenHepMCBeforeSmearing_(
0201 consumes<edm::HepMCProduct>(iConfig.getParameter<edm::InputTag>("tagHepMCBeforeSmearing"))),
0202 tokenHepMCAfterSmearing_(
0203 consumes<edm::HepMCProduct>(iConfig.getParameter<edm::InputTag>("tagHepMCAfterSmearing"))),
0204 tokenRecoProtonsSingleRP_(
0205 consumes<reco::ForwardProtonCollection>(iConfig.getParameter<InputTag>("tagRecoProtonsSingleRP"))),
0206 tokenRecoProtonsMultiRP_(
0207 consumes<reco::ForwardProtonCollection>(iConfig.getParameter<InputTag>("tagRecoProtonsMultiRP"))),
0208 lhcInfoToken_(esConsumes(ESInputTag("", iConfig.getParameter<std::string>("lhcInfoLabel")))),
0209 lhcInfoPerLSToken_(esConsumes(ESInputTag("", iConfig.getParameter<std::string>("lhcInfoPerLSLabel")))),
0210 lhcInfoPerFillToken_(esConsumes(ESInputTag("", iConfig.getParameter<std::string>("lhcInfoPerFillLabel")))),
0211 useNewLHCInfo_(iConfig.getParameter<bool>("useNewLHCInfo")),
0212 outputFile_(iConfig.getParameter<string>("outputFile")) {}
0213
0214
0215
0216 void CTPPSProtonReconstructionSimulationValidator::fillDescriptions(edm::ConfigurationDescriptions &descriptions) {
0217 edm::ParameterSetDescription desc;
0218
0219 desc.add<std::string>("lhcInfoLabel", "")->setComment("label of the LHCInfo record");
0220 desc.add<std::string>("lhcInfoPerLSLabel", "")->setComment("label of the LHCInfoPerLS record");
0221 desc.add<std::string>("lhcInfoPerFillLabel", "")->setComment("label of the LHCInfoPerFill record");
0222 desc.add<bool>("useNewLHCInfo", false)->setComment("flag whether to use new LHCInfoPer* records or old LHCInfo");
0223
0224 desc.add<std::string>("outputFile", "output.root")->setComment("output file name");
0225
0226 desc.addUntracked<unsigned int>("verbosity", 0)->setComment("verbosity level");
0227
0228 descriptions.add("ctppsProtonReconstructionSimulationValidatorDefault", desc);
0229 }
0230
0231
0232
0233 void CTPPSProtonReconstructionSimulationValidator::analyze(const edm::Event &iEvent, const edm::EventSetup &iSetup) {
0234
0235 const LHCInfoCombined lhcInfoCombined(
0236 iSetup, lhcInfoPerLSToken_, lhcInfoPerFillToken_, lhcInfoToken_, useNewLHCInfo_);
0237
0238
0239 edm::Handle<edm::HepMCProduct> hHepMCBeforeSmearing;
0240 iEvent.getByToken(tokenHepMCBeforeSmearing_, hHepMCBeforeSmearing);
0241 HepMC::GenEvent *hepMCEventBeforeSmearing = (HepMC::GenEvent *)hHepMCBeforeSmearing->GetEvent();
0242
0243 edm::Handle<edm::HepMCProduct> hHepMCAfterSmearing;
0244 iEvent.getByToken(tokenHepMCAfterSmearing_, hHepMCAfterSmearing);
0245 HepMC::GenEvent *hepMCEventAfterSmearing = (HepMC::GenEvent *)hHepMCAfterSmearing->GetEvent();
0246
0247 Handle<reco::ForwardProtonCollection> hRecoProtonsSingleRP;
0248 iEvent.getByToken(tokenRecoProtonsSingleRP_, hRecoProtonsSingleRP);
0249
0250 Handle<reco::ForwardProtonCollection> hRecoProtonsMultiRP;
0251 iEvent.getByToken(tokenRecoProtonsMultiRP_, hRecoProtonsMultiRP);
0252
0253
0254 bool vertex_set = false;
0255 FourVector vtx;
0256 for (auto it = hepMCEventAfterSmearing->vertices_begin(); it != hepMCEventAfterSmearing->vertices_end(); ++it) {
0257 if (vertex_set) {
0258 LogError("CTPPSProtonReconstructionSimulationValidator") << "Multiple vertices found.";
0259 return;
0260 }
0261
0262 vertex_set = true;
0263 vtx = (*it)->position();
0264 }
0265
0266
0267 bool proton_45_set = false;
0268 bool proton_56_set = false;
0269 FourVector mom_45, mom_56;
0270
0271 for (auto it = hepMCEventBeforeSmearing->particles_begin(); it != hepMCEventBeforeSmearing->particles_end(); ++it) {
0272 const auto &part = *it;
0273
0274
0275 if (part->pdg_id() != 2212)
0276 continue;
0277
0278 if (part->status() != 1)
0279 continue;
0280
0281 if (part->is_beam())
0282 continue;
0283
0284 const auto &mom = part->momentum();
0285
0286 if (mom.e() < 4500.)
0287 continue;
0288
0289 if (mom.z() > 0) {
0290
0291 if (proton_45_set) {
0292 LogError("CTPPSProtonReconstructionSimulationValidator") << "Found multiple protons in sector 45.";
0293 return;
0294 }
0295
0296 proton_45_set = true;
0297 mom_45 = mom;
0298 } else {
0299
0300 if (proton_56_set) {
0301 LogError("CTPPSProtonReconstructionSimulationValidator") << "Found multiple protons in sector 56.";
0302 return;
0303 }
0304
0305 proton_56_set = true;
0306 mom_56 = mom;
0307 }
0308 }
0309
0310
0311 for (const auto &handle : {hRecoProtonsSingleRP, hRecoProtonsMultiRP}) {
0312 for (const auto &rec_pr : *handle) {
0313 if (!rec_pr.validFit())
0314 continue;
0315
0316 unsigned int idx = 12345;
0317
0318 bool mom_set = false;
0319 FourVector mom;
0320
0321 if (rec_pr.lhcSector() == reco::ForwardProton::LHCSector::sector45) {
0322 idx = 0;
0323 mom_set = proton_45_set;
0324 mom = mom_45;
0325 }
0326 if (rec_pr.lhcSector() == reco::ForwardProton::LHCSector::sector56) {
0327 idx = 1;
0328 mom_set = proton_56_set;
0329 mom = mom_56;
0330 }
0331
0332 if (!mom_set)
0333 continue;
0334
0335 unsigned int meth_idx = 1234;
0336
0337 if (rec_pr.method() == reco::ForwardProton::ReconstructionMethod::singleRP) {
0338 meth_idx = 0;
0339
0340 CTPPSDetId rpId((*rec_pr.contributingLocalTracks().begin())->rpId());
0341 idx = 100 * rpId.arm() + 10 * rpId.station() + rpId.rp();
0342 }
0343
0344 if (rec_pr.method() == reco::ForwardProton::ReconstructionMethod::multiRP)
0345 meth_idx = 1;
0346
0347 fillPlots(meth_idx, idx, rec_pr, vtx, mom, lhcInfoCombined.energy);
0348 }
0349 }
0350
0351
0352 bool time_set_45 = false, time_set_56 = false;
0353 double time_45 = 0., time_56 = 0.;
0354 for (const auto &rec_pr : *hRecoProtonsMultiRP) {
0355 if (!rec_pr.validFit())
0356 continue;
0357
0358
0359 if (rec_pr.timeError() < 1E-3)
0360 continue;
0361
0362 if (rec_pr.lhcSector() == reco::ForwardProton::LHCSector::sector45) {
0363 time_set_45 = true;
0364 time_45 = rec_pr.time();
0365 }
0366 if (rec_pr.lhcSector() == reco::ForwardProton::LHCSector::sector56) {
0367 time_set_56 = true;
0368 time_56 = rec_pr.time();
0369 }
0370 }
0371
0372 if (time_set_45 && time_set_56)
0373 double_arm_plots_.fill(time_45, time_56, vtx.z(), vtx.t());
0374 }
0375
0376
0377
0378 void CTPPSProtonReconstructionSimulationValidator::fillPlots(unsigned int meth_idx,
0379 unsigned int idx,
0380 const reco::ForwardProton &rec_pr,
0381 const HepMC::FourVector &vtx,
0382 const HepMC::FourVector &mom,
0383 const double energy) {
0384 const double p_nom = energy;
0385 const double xi_simu = (p_nom - mom.rho()) / p_nom;
0386 const double th_x_simu = mom.x() / mom.rho();
0387 const double th_y_simu = mom.y() / mom.rho();
0388 const double vtx_y_simu = vtx.y();
0389 const double th_simu = sqrt(th_x_simu * th_x_simu + th_y_simu * th_y_simu);
0390 const double t_simu = -reco::ForwardProton::calculateT(p_nom, mom.rho(), th_simu);
0391
0392 const double xi_reco = rec_pr.xi();
0393 const double th_x_reco = rec_pr.thetaX();
0394 const double th_y_reco = rec_pr.thetaY();
0395 const double vtx_y_reco = rec_pr.vertex().y() * 10.;
0396 const double t_reco = -rec_pr.t();
0397
0398 auto &plt = plots_[meth_idx][idx];
0399
0400 plt.h_xi_reco_vs_xi_simu->Fill(xi_simu, xi_reco);
0401 plt.h_de_xi->Fill(xi_reco - xi_simu);
0402 plt.p_de_xi_vs_xi_simu->Fill(xi_simu, xi_reco - xi_simu);
0403
0404 plt.h_de_th_x->Fill(th_x_reco - th_x_simu);
0405 plt.p_de_th_x_vs_xi_simu->Fill(xi_simu, th_x_reco - th_x_simu);
0406
0407 plt.h_de_th_y->Fill(th_y_reco - th_y_simu);
0408 plt.p_de_th_y_vs_xi_simu->Fill(xi_simu, th_y_reco - th_y_simu);
0409
0410 plt.h_de_vtx_y->Fill(vtx_y_reco - vtx_y_simu);
0411 plt.p_de_vtx_y_vs_xi_simu->Fill(xi_simu, vtx_y_reco - vtx_y_simu);
0412
0413 plt.h_de_t->Fill(t_reco - t_simu);
0414 plt.p_de_t_vs_xi_simu->Fill(xi_simu, t_reco - t_simu);
0415 plt.p_de_t_vs_t_simu->Fill(t_simu, t_reco - t_simu);
0416 plt.h2_de_t_vs_t_simu->Fill(t_simu, t_reco - t_simu);
0417 }
0418
0419
0420
0421 void CTPPSProtonReconstructionSimulationValidator::endJob() {
0422 auto f_out = std::make_unique<TFile>(outputFile_.c_str(), "recreate");
0423
0424 for (const auto &mit : plots_) {
0425 const char *method = (mit.first == 0) ? "single rp" : "multi rp";
0426 TDirectory *d_method = f_out->mkdir(method);
0427
0428 for (const auto &eit : mit.second) {
0429 gDirectory = d_method->mkdir(Form("%i", eit.first));
0430 eit.second.write();
0431 }
0432 }
0433
0434 gDirectory = f_out->mkdir("double arm");
0435 double_arm_plots_.write();
0436 }
0437
0438
0439
0440 DEFINE_FWK_MODULE(CTPPSProtonReconstructionSimulationValidator);
