diff --git a/PWGLF/DataModel/LFAntinCexTables.h b/PWGLF/DataModel/LFAntinCexTables.h index 09dfd023b0b..263c9e5f66b 100644 --- a/PWGLF/DataModel/LFAntinCexTables.h +++ b/PWGLF/DataModel/LFAntinCexTables.h @@ -27,12 +27,12 @@ namespace o2::aod namespace antin_cex { // Metadata -DECLARE_SOA_COLUMN(IsCex, isCex, bool); // 1=CEX (from antin), 0=BG -DECLARE_SOA_COLUMN(MotherPdg, motherPdg, int32_t); // mother PDG -DECLARE_SOA_COLUMN(MotherNHitIB, motherNHitIB, int); // mother IB Hits -DECLARE_SOA_COLUMN(ColId, colId, int32_t); // mcCollisionId -DECLARE_SOA_COLUMN(PId, pId, int32_t); // proton MC id -DECLARE_SOA_COLUMN(AntipId, antipId, int32_t); // antiproton MC id +DECLARE_SOA_COLUMN(IsCex, isCex, bool); // 1=CEX (from antin), 0=BG +DECLARE_SOA_COLUMN(MotherPdg, motherPdg, int32_t); // mother PDG +DECLARE_SOA_COLUMN(MotherP, motherP, float); // mother P +DECLARE_SOA_COLUMN(ColId, colId, int32_t); // mcCollisionId +DECLARE_SOA_COLUMN(PId, pId, int32_t); // proton MC id +DECLARE_SOA_COLUMN(AntipId, antipId, int32_t); // antiproton MC id // MC (pair) DECLARE_SOA_COLUMN(McPairP, mcPairP, float); @@ -109,8 +109,6 @@ DECLARE_SOA_COLUMN(SVDeltaRToLayer, svDeltaRToLayer, float); DECLARE_SOA_COLUMN(PTrkItsHitMap, pTrkItsHitMap, uint16_t); DECLARE_SOA_COLUMN(APTrkItsHitMap, apTrkItsHitMap, uint16_t); -DECLARE_SOA_COLUMN(PLayersOk, pLayersOk, int8_t); -DECLARE_SOA_COLUMN(APLayersOk, apLayersOk, int8_t); DECLARE_SOA_COLUMN(PVtxZ, pVtxZ, float); @@ -128,7 +126,7 @@ DECLARE_SOA_COLUMN(AntipTrkTgl, antipTrkTgl, float); // Table DECLARE_SOA_TABLE(AntinCexPairs, "AOD", "ANTINCEX", antin_cex::IsCex, - antin_cex::MotherPdg, antin_cex::MotherNHitIB, antin_cex::ColId, antin_cex::PId, antin_cex::AntipId, + antin_cex::MotherPdg, antin_cex::MotherP, antin_cex::ColId, antin_cex::PId, antin_cex::AntipId, antin_cex::McPairP, antin_cex::McPairPt, antin_cex::McPairPz, antin_cex::McDplane, antin_cex::McAngleDeg, antin_cex::McVtxX, antin_cex::McVtxY, antin_cex::McVtxZ, antin_cex::VtxNAll, antin_cex::VtxNCh, antin_cex::VtxNNeut, antin_cex::VtxNPi0, antin_cex::VtxNGamma, antin_cex::VtxNN, @@ -143,7 +141,7 @@ DECLARE_SOA_TABLE(AntinCexPairs, "AOD", "ANTINCEX", antin_cex::PairPointingAngleDeg, antin_cex::PvsvThetaDeg, antin_cex::PvsvPhiDeg, antin_cex::PairPBalance, antin_cex::PairPtBalance, antin_cex::PairQ, antin_cex::DPairP, antin_cex::DPairPt, antin_cex::DPairPz, antin_cex::DOpenAngle, antin_cex::SVNearestLayerId, antin_cex::SVDeltaRToLayer, - antin_cex::PTrkItsHitMap, antin_cex::APTrkItsHitMap, antin_cex::PLayersOk, antin_cex::APLayersOk, + antin_cex::PTrkItsHitMap, antin_cex::APTrkItsHitMap, antin_cex::PVtxZ, antin_cex::PTrkItsNSigmaPr, antin_cex::PTrkItsPidValid, antin_cex::PTrkTgl, antin_cex::AntipTrkItsNSigmaPr, antin_cex::AntipTrkItsPidValid, antin_cex::AntipTrkTgl); diff --git a/PWGLF/TableProducer/Nuspex/nucleiAntineutronCex.cxx b/PWGLF/TableProducer/Nuspex/nucleiAntineutronCex.cxx index 1418a3f76d3..3787d2ce9e0 100644 --- a/PWGLF/TableProducer/Nuspex/nucleiAntineutronCex.cxx +++ b/PWGLF/TableProducer/Nuspex/nucleiAntineutronCex.cxx @@ -15,9 +15,8 @@ /// \author Fabiola Lugo /// -#include "PWGLF/DataModel/LFAntinCexTables.h" - -#include "Common/DataModel/PIDResponseITS.h" +#include +#include #include #include @@ -33,7 +32,6 @@ #include #include -#include #include #include #include @@ -51,15 +49,15 @@ using o2::constants::math::Rad2Deg; struct NucleiAntineutronCex { // Slicing per colision Preslice perMcByColl = aod::mcparticle::mcCollisionId; - // Check available tables in the AOD, specifically TracksIU, TracksCovIU + using TracksWCovMc = soa::Join; // === Cut values === static constexpr double kIts2MinR = 4.5; // ITS2 min radius (exluding IB) [cm] static constexpr double kIts2MaxR = 48.0; // ITS2 max radius [cm] static constexpr double kIts2MaxVz = 39.0; // ITS2 max |vz| [cm] - static constexpr double kAccMaxEta = 1.2; // acceptance |eta| - static constexpr double kAccMaxVz = 10.0; // acceptance |vz| [cm] + static constexpr double kAccMaxEta = 1.2; // acceptance |eta| (primary particles) + static constexpr double kAccMaxVz = 10.0; // acceptance |vz| (primary particles) [cm] static constexpr double kStrictEta = 0.9; // tighter eta cut static constexpr double kInitDplane = 10.0; // init dplane static constexpr double kHuge = 1e9; // fallback for bad denom @@ -112,28 +110,13 @@ struct NucleiAntineutronCex { histos.add("hProcEnumAP_CEX", "procEnum of secondary #bar{p} (CEX);procEnum;Entries", kTH1I, {{100, -0.5, 99.5}}); histos.add("hProcEnumAP_BG", "procEnum of secondary #bar{p} (BG);procEnum;Entries", kTH1I, {{100, -0.5, 99.5}}); - // Multiplicity/composition at the SV (MC truth, for FINAL selected candidates) - histos.add("hVtxNAll_CEX", "N(all) secondaries at SV (CEX);N;Entries", kTH1I, {{60, -0.5, 59.5}}); - histos.add("hVtxNAll_BG", "N(all) secondaries at SV (BG);N;Entries", kTH1I, {{60, -0.5, 59.5}}); - histos.add("hVtxNCh_CEX", "N(charged) secondaries at SV (CEX);N;Entries", kTH1I, {{60, -0.5, 59.5}}); - histos.add("hVtxNCh_BG", "N(charged) secondaries at SV (BG);N;Entries", kTH1I, {{60, -0.5, 59.5}}); - histos.add("hVtxNNeut_CEX", "N(neutral) secondaries at SV (CEX);N;Entries", kTH1I, {{60, -0.5, 59.5}}); - histos.add("hVtxNNeut_BG", "N(neutral) secondaries at SV (BG);N;Entries", kTH1I, {{60, -0.5, 59.5}}); - - histos.add("hVtxNPi0_CEX", "N(#pi^{0}) at SV (CEX);N;Entries", kTH1I, {{40, -0.5, 39.5}}); - histos.add("hVtxNPi0_BG", "N(#pi^{0}) at SV (BG);N;Entries", kTH1I, {{40, -0.5, 39.5}}); - histos.add("hVtxNGamma_CEX", "N(#gamma) at SV (CEX);N;Entries", kTH1I, {{60, -0.5, 59.5}}); - histos.add("hVtxNGamma_BG", "N(#gamma) at SV (BG);N;Entries", kTH1I, {{60, -0.5, 59.5}}); - histos.add("hVtxNN_CEX", "N(n) at SV (CEX);N;Entries", kTH1I, {{40, -0.5, 39.5}}); - histos.add("hVtxNN_BG", "N(n) at SV (BG);N;Entries", kTH1I, {{40, -0.5, 39.5}}); - // CEX pair from antineutron (MC) histos.add("cexPairMcP", "CEX pair total momentum;|p| (GeV/c);Entries", kTH1F, {{100, 0., 10.}}); histos.add("cexPairMcPt", "CEX pair p_{T};p_{T} (GeV/c);Entries", kTH1F, {{100, 0., 10.}}); histos.add("cexPairMcPz", "CEX pair p_{z};p_{z} (GeV/c);Entries", kTH1F, {{100, -10., 10.}}); histos.add("cex_pairmcDplane", "CEX pair d_{plane};d_{plane} (cm);Entries", kTH1F, {{100, 0., 10.}}); histos.add("cex_pairmc_angle", "Pair opening angle;Angle (°);Entries", kTH1F, {{180, 0., 180.}}); - histos.add("cex_pairmc_vtx", "MC CEX pair vertex;X (cm);Y (cm)", kTH2F, {{100, -50., 50.}, {100, -50., 50.}}); + histos.add("cex_pairmc_vtx", "MC CEX pair vertex;X (cm);Y (cm)", kTH2F, {{200, -60., 60.}, {200, -60., 60.}}); histos.add("cex_pairmc_vtxz", "MC secondary vertex Z;Z (cm);Entries", kTH1F, {{200, -60., 60.}}); histos.add("cexPairMcPITScuts", "CEX pair momentum (ITS cuts);|p| (GeV/c);Entries", kTH1F, {{100, 0., 10.}}); @@ -148,16 +131,12 @@ struct NucleiAntineutronCex { histos.add("cexbg_pairmc_pz", "Background pair p_{z};p_{z} (GeV/c);Entries", kTH1F, {{100, -10., 10.}}); histos.add("cexbg_pairmcDplane", "Background d_{plane};d_{plane} (cm);Entries", kTH1F, {{100, 0., 10.}}); histos.add("cexbg_pairmc_angle", "Background opening angle;Angle (°);Entries", kTH1F, {{180, 0., 180.}}); - histos.add("cexbg_pairmc_vtx", "Background pair vertex;X (cm);Y (cm)", kTH2F, {{100, -50., 50.}, {100, -50., 50.}}); + histos.add("cexbg_pairmc_vtx", "Background pair vertex;X (cm);Y (cm)", kTH2F, {{200, -60., 60.}, {200, -60., 60.}}); histos.add("cexbg_pairmc_vtxz", "Background secondary vertex Z;Z (cm);Entries", kTH1F, {{200, -60., 60.}}); histos.add("cexbg_pairmc_pITScuts", "Background momentum (ITS cuts);|p| (GeV/c);Entries", kTH1F, {{100, 0., 10.}}); - histos.add("hDeltaP_CEX", "|p_{mother}-Σp_{SV}| (CEX);Δp (GeV/c);Entries", kTH1F, {{200, 0., 10.}}); - histos.add("hDeltaP_BG", "|p_{mother}-Σp_{SV}| (BG);Δp (GeV/c);Entries", kTH1F, {{200, 0., 10.}}); - - // Mother IB hits - histos.add("hMotherNHitIB_CEX", "Mother IB hit layers (L0-L2) (CEX);N_{IB layers};Entries", kTH1I, {{5, -1.5, 4.5}}); - histos.add("hMotherNHitIB_BG", "Mother IB hit layers (L0-L2) (BG);N_{IB layers};Entries", kTH1I, {{5, -1.5, 4.5}}); + // Pi0 events + histos.add("cexPairMcP_pi0", "CEX pair total momentum;|p| (GeV/c);Entries", kTH1F, {{100, 0., 10.}}); // CEX pair from antineutron (TRK) histos.add("cex_pairtrk_angle", "Pair opening angle (tracks);Angle (°);Entries", kTH1F, {{180, 0., 180.}}); @@ -329,7 +308,7 @@ struct NucleiAntineutronCex { double antipE = particle.e(); int antipId = particle.globalIndex(); - // Selection conditions: Produced in the ITS + // Selection conditions: Produced in the ITS IB const double r = std::sqrt(antipVx * antipVx + antipVy * antipVy); // Config for ITS // if(3.9<=r && r<=43.0 && std::abs(antipVz)<=48.9){ @@ -396,6 +375,33 @@ struct NucleiAntineutronCex { if (pionPlus || pionMinus) continue; + // Pion 0 count + bool pion0 = false; + for (const auto& particle4 : mcPartsThis) { + if (particle4.mcCollisionId() != colId) + continue; + const auto proc4Enum = particle4.getProcess(); + const bool isSecondaryFromMaterial4 = (!particle4.producedByGenerator()) && (proc4Enum == kPHadronic || proc4Enum == kPHInhelastic); + if (particle4.pdgCode() != kPi0 || !isSecondaryFromMaterial4 || particle4.mothersIds().empty()) + continue; + bool hasPrimaryMotherPi0 = false; + for (const auto& mother : particle4.mothers_as()) { + if (mother.isPhysicalPrimary()) { + hasPrimaryMotherPi0 = true; + break; + } + } + if (!hasPrimaryMotherPi0) + continue; + double pi0Vx = particle4.vx(); + double pi0Vy = particle4.vy(); + double pi0Vz = particle4.vz(); + if (std::abs(pi0Vx - antipVx) < kVtxTol && std::abs(pi0Vy - antipVy) < kVtxTol && std::abs(pi0Vz - antipVz) < kVtxTol) { + pion0 = true; + break; + } + } + // CEX selection double dplane = kInitDplane; double dplaneTmp = 0; @@ -453,7 +459,6 @@ struct NucleiAntineutronCex { continue; // CEX proton selection - // dplaneTmp = (pPy*antipPz - pPz*antipPy)*(pvtxX-antipVx) + (pPz*antipPx - pPx*antipPz)*(pvtxY-antipVy) + (pPx*antipPy - pPy*antipPx)*(pvtxZ-antipVz); double nx = (pPy * antipPz - pPz * antipPy); double ny = (pPz * antipPx - pPx * antipPz); double nz = (pPx * antipPy - pPy * antipPx); @@ -518,6 +523,8 @@ struct NucleiAntineutronCex { histos.fill(HIST("cexn_pairmc_pt"), cexPairMcPt / motherPt); if (motherPz != 0) histos.fill(HIST("cexn_pairmc_pz"), cexPairMcPz / motherPz); + if (motherP != 0 && pion0) + histos.fill(HIST("cexPairMcP_pi0"), cexPairMcP / motherP); } // BG mother if (motherPdg != -kNeutron) { @@ -533,8 +540,8 @@ struct NucleiAntineutronCex { histos.fill(HIST("cexbg_pairmc_pITScuts"), cexPairMcP); } - // Detector signal - bool antipLayers = false; + // Reconstructed data + bool antipLayers_condition = false; bool antipHasTrack = false; double antipTrkPx = 0.; double antipTrkPy = 0.; @@ -549,7 +556,7 @@ struct NucleiAntineutronCex { int8_t pTrkItsPidValid = 0; float pTrkTgl = 0.f; - bool pLayers = false; + bool pLayers_condition = false; bool pHasTrack = false; double pTrkPx = 0.; double pTrkPy = 0.; @@ -614,9 +621,8 @@ struct NucleiAntineutronCex { antipTrkItsPidValid = std::isfinite(nsigmaITSantip) ? 1 : 0; antipHasTrack = true; apItsMap = static_cast(track.itsClusterMap()); - antipLayers = (apItsMap != 0); if (layerCondition) - antipLayers = true; + antipLayers_condition = true; if (motherPdg == -kNeutron) { histos.fill(HIST("apItsNsigmaPr"), antipTrkItsNSigmaPr); histos.fill(HIST("apItsPidValid"), antipTrkItsPidValid); @@ -643,9 +649,8 @@ struct NucleiAntineutronCex { pTrkItsPidValid = std::isfinite(nsigmaITSp) ? 1 : 0; pHasTrack = true; pItsMap = static_cast(track.itsClusterMap()); - pLayers = (pItsMap != 0); if (layerCondition) - pLayers = true; + pLayers_condition = true; if (motherPdg == -kNeutron) { histos.fill(HIST("pItsNsigmaPr"), pTrkItsNSigmaPr); histos.fill(HIST("pItsPidValid"), pTrkItsPidValid); @@ -723,7 +728,7 @@ struct NucleiAntineutronCex { if (motherPdg != -kNeutron) histos.fill(HIST("cexbg_pairtrkVtxfitDcaPair"), dcaPair); - if (!(antipLayers && pLayers)) + if (!(antipLayers_condition && pLayers_condition)) continue; double cexPairTrkP = total_trk_pVec.Mag(); double cexPairTrkPt = total_trk_pVec.Pt(); @@ -813,105 +818,17 @@ struct NucleiAntineutronCex { histos.fill(HIST("hProcEnumAP_BG"), static_cast(procEnum)); } - // Count material secondaries produced at the same SV as the selected secondary antiproton. - int vtxNAll = 0; - int vtxNCh = 0; - int vtxNNeut = 0; - int vtxNPi0 = 0; - int vtxNGamma = 0; - int vtxNN = 0; - double sumPx_vtx = 0.0; - double sumPy_vtx = 0.0; - double sumPz_vtx = 0.0; - auto* pdgDB = TDatabasePDG::Instance(); - - for (const auto& particle5 : mcPartsThis) { - if (particle5.mcCollisionId() != colId) { - continue; - } - // Same SV (use the SV of the selected secondary antiproton) - if (std::abs(particle5.vx() - antipVx) >= kVtxTol || std::abs(particle5.vy() - antipVy) >= kVtxTol || std::abs(particle5.vz() - antipVz) >= kVtxTol) { - continue; - } - const auto proc5Enum = particle5.getProcess(); - const bool isSecondaryFromMaterial5 = - (!particle5.producedByGenerator()) && (proc5Enum == kPHadronic || proc5Enum == kPHInhelastic); - if (!isSecondaryFromMaterial5) { - continue; - } - ++vtxNAll; - sumPx_vtx += particle5.px(); - sumPy_vtx += particle5.py(); - sumPz_vtx += particle5.pz(); - const int pdg = particle5.pdgCode(); - if (pdg == kPi0) { - ++vtxNPi0; - } - if (pdg == kGamma) { - ++vtxNGamma; - } - if (pdg == kNeutron) { - ++vtxNN; - } - // Charged vs neutral via PDG database (Charge() is in units of e/3) - double q = 0.0; - if (auto* part = pdgDB->GetParticle(pdg)) { - q = part->Charge() / 3.0; - } - if (std::abs(q) > 0.0) { - ++vtxNCh; - } else { - ++vtxNNeut; - } - } - - // Fill histos (final selected candidates only) - if (isCex) { - histos.fill(HIST("hVtxNAll_CEX"), vtxNAll); - histos.fill(HIST("hVtxNCh_CEX"), vtxNCh); - histos.fill(HIST("hVtxNNeut_CEX"), vtxNNeut); - histos.fill(HIST("hVtxNPi0_CEX"), vtxNPi0); - histos.fill(HIST("hVtxNGamma_CEX"), vtxNGamma); - histos.fill(HIST("hVtxNN_CEX"), vtxNN); - } else { - histos.fill(HIST("hVtxNAll_BG"), vtxNAll); - histos.fill(HIST("hVtxNCh_BG"), vtxNCh); - histos.fill(HIST("hVtxNNeut_BG"), vtxNNeut); - histos.fill(HIST("hVtxNPi0_BG"), vtxNPi0); - histos.fill(HIST("hVtxNGamma_BG"), vtxNGamma); - histos.fill(HIST("hVtxNN_BG"), vtxNN); - } - const float vtxfitDX = secX - antipVx; const float vtxfitDY = secY - antipVy; const float vtxfitDZ = secZ - antipVz; const float vtxfitD3D = std::sqrt(vtxfitDX * vtxfitDX + vtxfitDY * vtxfitDY + vtxfitDZ * vtxfitDZ); - - const double dPx = motherPx - sumPx_vtx; - const double dPy = motherPy - sumPy_vtx; - const double dPz = motherPz - sumPz_vtx; - const double deltaP = std::sqrt(dPx * dPx + dPy * dPy + dPz * dPz); - - if (isCex) { - histos.fill(HIST("hDeltaP_CEX"), deltaP); - } else { - histos.fill(HIST("hDeltaP_BG"), deltaP); - } - - if (motherHasTrack) { - if (isCex) { - histos.fill(HIST("hMotherNHitIB_CEX"), motherNHitIB); - } else { - histos.fill(HIST("hMotherNHitIB_BG"), motherNHitIB); - } - } - const uint32_t selMask = 0u; outPairs( isCex, motherPdg, - motherNHitIB, + motherP, + colId, pId, antipId, @@ -986,8 +903,6 @@ struct NucleiAntineutronCex { pItsMap, apItsMap, - static_cast(pLayers ? 1 : 0), - static_cast(antipLayers ? 1 : 0), pvtxZ,