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Add config for pools of undecayed Xic+ in pp collisions at 13 TeV (#2085)
* Add config for pools of undecayed Xic+ in pp collisions at 13 TeV * separate cfg files for XiC0 and XiC+ * fix ini files * fix test files
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‎MC/config/PWGHF/ini/GeneratorHF_D2H_bbbar_Mode2_XiCplus_NoDecay.ini‎

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### The external generator derives from GeneratorPythia8.
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[GeneratorExternal]
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fileName=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGHF/external/generator/generator_pythia8_gaptriggered_hf.C
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funcName=GeneratorPythia8GapTriggeredBeauty(1, -1.5, 1.5, -1.5, 1.5, {4232})
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[GeneratorPythia8]
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config=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGHF/pythia8/generator/pythia8_charmhadronic_XiCplus_NoDecay.cfg
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includePartonEvent=true

‎MC/config/PWGHF/ini/GeneratorHF_D2H_ccbar_Mode2_XiCplus_NoDecay.ini‎

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### The external generator derives from GeneratorPythia8.
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[GeneratorExternal]
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fileName=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGHF/external/generator/generator_pythia8_gaptriggered_hf.C
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funcName=GeneratorPythia8GapTriggeredCharm(1, -1.5, 1.5, -1.5, 1.5, {4232})
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[GeneratorPythia8]
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config=${O2DPG_MC_CONFIG_ROOT}/MC/config/PWGHF/pythia8/generator/pythia8_charmhadronic_XiCplus_NoDecay.cfg
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includePartonEvent=true

‎MC/config/PWGHF/ini/tests/GeneratorHF_D2H_bbbar_Mode2_XiCplus_NoDecay.C‎

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int External() {
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std::string path{"o2sim_Kine.root"};
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int checkPdgQuark = 5;
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int checkPdgHadron{4232};
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int checkHadronDecays{0};
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TFile file(path.c_str(), "READ");
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if (file.IsZombie()) {
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std::cerr << "Cannot open ROOT file " << path << "\n";
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return 1;
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}
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auto tree = (TTree *)file.Get("o2sim");
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std::vector<o2::MCTrack> *tracks{};
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tree->SetBranchAddress("MCTrack", &tracks);
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o2::dataformats::MCEventHeader *eventHeader = nullptr;
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tree->SetBranchAddress("MCEventHeader.", &eventHeader);
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int nEventsInj{};
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int nQuarks{}, nSignals{};
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auto nEvents = tree->GetEntries();
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for (int i = 0; i < nEvents; i++) {
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tree->GetEntry(i);
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// check subgenerator information
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if (eventHeader->hasInfo(o2::mcgenid::GeneratorProperty::SUBGENERATORID)) {
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bool isValid = false;
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int subGeneratorId = eventHeader->getInfo<int>(o2::mcgenid::GeneratorProperty::SUBGENERATORID, isValid);
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if (subGeneratorId == checkPdgQuark) {
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nEventsInj++;
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}
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}
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for (auto &track : *tracks) {
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auto pdg = track.GetPdgCode();
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if (std::abs(pdg) == checkPdgQuark) {
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nQuarks++;
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continue;
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}
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if (std::abs(pdg) == checkPdgHadron) { // found signal
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nSignals++; // count signal PDG
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for (int j{track.getFirstDaughterTrackId()}; j <= track.getLastDaughterTrackId(); ++j) {
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if (j >= 0) {
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checkHadronDecays += 1;
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}
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}
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}
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}
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}
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std::cout << "--------------------------------\n";
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std::cout << "# Events: " << nEvents << "\n";
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std::cout << Form("# events injected with %d quark pair: ", checkPdgQuark) << nEventsInj << "\n";
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std::cout << Form("# %d (anti)quarks: ", checkPdgQuark) << nQuarks << "\n";
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std::cout <<"# signal hadrons: " << nSignals << "\n";
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std::cout <<"# signal hadrons decaying : " << checkHadronDecays << "\n";
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if (nEventsInj < nEvents) {
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std::cerr << "Number of generated events with triggered events different than expected\n";
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return 1;
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}
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if (nQuarks < nEvents) { // we expect anyway more because the same quark is repeated several time, after each gluon radiation
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std::cerr << "Number of generated (anti)quarks " << checkPdgQuark << " lower than expected\n";
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return 1;
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}
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if (nSignals < nEvents) {
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std::cerr << "Number of generated signals lower than expected\n";
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return 1;
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}
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if (checkHadronDecays > 0) {
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std::cerr << "Decayed XiC, it should never decay\n";
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return 1;
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}
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return 0;
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}

‎MC/config/PWGHF/ini/tests/GeneratorHF_D2H_ccbar_Mode2_XiCplus_NoDecay.C‎

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int External() {
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std::string path{"o2sim_Kine.root"};
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int checkPdgQuark = 4;
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int checkPdgHadron{4232};
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int checkHadronDecays{0};
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TFile file(path.c_str(), "READ");
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if (file.IsZombie()) {
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std::cerr << "Cannot open ROOT file " << path << "\n";
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return 1;
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}
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auto tree = (TTree *)file.Get("o2sim");
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std::vector<o2::MCTrack> *tracks{};
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tree->SetBranchAddress("MCTrack", &tracks);
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o2::dataformats::MCEventHeader *eventHeader = nullptr;
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tree->SetBranchAddress("MCEventHeader.", &eventHeader);
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int nEventsInj{};
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int nQuarks{}, nSignals{};
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auto nEvents = tree->GetEntries();
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for (int i = 0; i < nEvents; i++) {
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tree->GetEntry(i);
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// check subgenerator information
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if (eventHeader->hasInfo(o2::mcgenid::GeneratorProperty::SUBGENERATORID)) {
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bool isValid = false;
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int subGeneratorId = eventHeader->getInfo<int>(o2::mcgenid::GeneratorProperty::SUBGENERATORID, isValid);
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if (subGeneratorId == checkPdgQuark) {
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nEventsInj++;
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}
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}
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for (auto &track : *tracks) {
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auto pdg = track.GetPdgCode();
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if (std::abs(pdg) == checkPdgQuark) {
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nQuarks++;
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continue;
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}
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if (std::abs(pdg) == checkPdgHadron) { // found signal
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nSignals++; // count signal PDG
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for (int j{track.getFirstDaughterTrackId()}; j <= track.getLastDaughterTrackId(); ++j) {
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if (j >= 0) {
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checkHadronDecays += 1;
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}
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}
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}
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}
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}
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std::cout << "--------------------------------\n";
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std::cout << "# Events: " << nEvents << "\n";
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std::cout << Form("# events injected with %d quark pair: ", checkPdgQuark) << nEventsInj << "\n";
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std::cout << Form("# %d (anti)quarks: ", checkPdgQuark) << nQuarks << "\n";
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std::cout <<"# signal hadrons: " << nSignals << "\n";
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std::cout <<"# signal hadrons decaying : " << checkHadronDecays << "\n";
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if (nEventsInj < nEvents) {
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std::cerr << "Number of generated events with triggered events different than expected\n";
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return 1;
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}
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if (nQuarks < nEvents) { // we expect anyway more because the same quark is repeated several time, after each gluon radiation
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std::cerr << "Number of generated (anti)quarks " << checkPdgQuark << " lower than expected\n";
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return 1;
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}
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if (nSignals < nEvents) {
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std::cerr << "Number of generated signals lower than expected\n";
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return 1;
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}
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if (checkHadronDecays > 0) {
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std::cerr << "Decayed XiC, it should never decay\n";
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return 1;
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}
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return 0;
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}
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‎MC/config/PWGHF/pythia8/generator/pythia8_charmhadronic_XiC_NoDecay.cfg‎

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#OmegaC
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4332:tau0 = 0.0803
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### switch off XiC decays
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### switch off XiC0 decays
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4132:onMode = off

‎MC/config/PWGHF/pythia8/generator/pythia8_charmhadronic_XiCplus_NoDecay.cfg‎

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### configuration for XiC
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### beams
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Beams:idA 2212 # proton
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Beams:idB 2212 # proton
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Beams:eCM 13600. # GeV
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### processes
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SoftQCD:inelastic on # all inelastic processes
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### decays
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ParticleDecays:limitTau0 on
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ParticleDecays:tau0Max 10.
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### switching on Pythia Mode2
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ColourReconnection:mode 1
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ColourReconnection:allowDoubleJunRem off
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ColourReconnection:m0 0.3
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ColourReconnection:allowJunctions on
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ColourReconnection:junctionCorrection 1.20
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ColourReconnection:timeDilationMode 2
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ColourReconnection:timeDilationPar 0.18
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StringPT:sigma 0.335
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StringZ:aLund 0.36
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StringZ:bLund 0.56
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StringFlav:probQQtoQ 0.078
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StringFlav:ProbStoUD 0.2
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StringFlav:probQQ1toQQ0join 0.0275,0.0275,0.0275,0.0275
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MultiPartonInteractions:pT0Ref 2.15
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BeamRemnants:remnantMode 1
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BeamRemnants:saturation 5
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#Correct decay lengths(wrong in PYTHIA8 decay table)
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#Lb
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5122:tau0 = 0.4390
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#Xic0
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4132:tau0 = 0.0455
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#OmegaC
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4332:tau0 = 0.0803
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### switch off XiC+ decays
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4232:onMode = off

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