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Merged
ginnocen merged 2 commits into from
Nov 1, 2021
Merged

PWGHF: Adding chi2pca to the Λb selection #237

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6191707
Adding chi2pca
pchrista Oct 31, 2021
3e9fad5
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pchrista Oct 31, 2021
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30 changes: 15 additions & 15 deletions PWGHF/Core/HFSelectorCuts.h
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Original file line number Diff line number Diff line change
Expand Up @@ -540,7 +540,7 @@ static const std::vector<std::string> cutVarLabels = {"m", "CPA", "d0 D0", "d0 P
namespace hf_cuts_lb_tolcpi
{
static constexpr int npTBins = 12;
static constexpr int nCutVars = 11;
static constexpr int nCutVars = 12;
// default values for the pT bin edges (can be used to configure histogram axis)
// offset by 1 from the bin numbers in cuts array
constexpr double pTBins[npTBins + 1] = {
Expand All @@ -561,19 +561,19 @@ constexpr double pTBins[npTBins + 1] = {
auto pTBins_v = std::vector<double>{pTBins, pTBins + npTBins + 1};

// default values for the cuts
// DeltaM CPA d0Lc d0Pi pTLc pTPi LbDecayLength LbDecayLengthXY IPProd DeltaMLc CthetaStr
constexpr double cuts[npTBins][nCutVars] = {{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 0 < pt < 0.5 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 0.5 < pt < 1 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 1 < pt < 2 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 2 < pt < 3 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 3 < pt < 4 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 4 < pt < 5 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 5 < pt < 7 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 7 < pt < 10 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 10 < pt < 13 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 13 < pt < 16 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 16 < pt < 20 */
{1., 0.8, 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}}; /* 20 < pt < 24 */
// DeltaM CPA chi2PCA d0Lc d0Pi pTLc pTPi LbDecayLength LbDecayLengthXY IPProd DeltaMLc CthetaStr
constexpr double cuts[npTBins][nCutVars] = {{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 0 < pt < 0.5 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 0.5 < pt < 1 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 1 < pt < 2 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 2 < pt < 3 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 3 < pt < 4 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 4 < pt < 5 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 5 < pt < 7 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 7 < pt < 10 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 10 < pt < 13 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 13 < pt < 16 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}, /* 16 < pt < 20 */
{1., 0.8, 1., 0.01, 0.01, 1.0, 0.15, 0.05, 0.05, 0., 0.1, 0.8}}; /* 20 < pt < 24 */
// row labels
static const std::vector<std::string> pTBinLabels = {
"pT bin 0",
Expand All @@ -590,7 +590,7 @@ static const std::vector<std::string> pTBinLabels = {
"pT bin 11"};

// column labels
static const std::vector<std::string> cutVarLabels = {"m", "CPA", "d0 Lc+", "d0 Pi", "pT Lc+", "pT Pi", "Lb decLen", "Lb decLenXY", "Imp. Par. Product", "DeltaMLc", "Cos ThetaStar"};
static const std::vector<std::string> cutVarLabels = {"m", "CPA", "Chi2PCA", "d0 Lc+", "d0 Pi", "pT Lc+", "pT Pi", "Lb decLen", "Lb decLenXY", "Imp. Par. Product", "DeltaMLc", "Cos ThetaStar"};
} // namespace hf_cuts_lb_tolcpi

namespace hf_cuts_x_tojpsipipi
Expand Down
12 changes: 9 additions & 3 deletions PWGHF/TableProducer/HFLbToLcPiCandidateSelector.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,12 @@ struct HfLbToLcPiCandidateSelector {
return false;
}

//Lb chi2PCA cut
if (hfCandLb.chi2PCA() > cuts->get(pTBin, "Chi2PCA")) {
//Printf("Lb selection failed at chi2PCA");
return false;
}

//Lb CPA cut
if (hfCandLb.cpa() < cuts->get(pTBin, "CPA")) {
return false;
Expand All @@ -113,9 +119,9 @@ struct HfLbToLcPiCandidateSelector {
}

//d0 of Lc+
//if(std::abs(hfCandLb.impactParameter0()) > cuts->get(pTBin, "d0 Lc+")){
//return false;
//}
if (std::abs(hfCandLb.impactParameter0()) < cuts->get(pTBin, "d0 Lc+")) {
return false;
}

return true;
}
Expand Down
33 changes: 21 additions & 12 deletions PWGHF/Tasks/taskLb.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -133,12 +133,12 @@ struct HfTaskLbMc {
registry.add("hYProng1Gen", "MC particles (matched);prong 1 (#pi^{-}) #it{y}^{gen};entries", {HistType::kTH2F, {{100, -2, 2}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hEtaProng0Gen", "MC particles (matched);prong 0 (#Lambda_{b}^{0}) #it{#eta}^{gen};entries", {HistType::kTH2F, {{100, -2, 2}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hEtaProng1Gen", "MC particles (matched);prong 1 (#pi^{-}) #it{#eta}^{gen};entries", {HistType::kTH2F, {{100, -2, 2}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPARecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate cosine of pointing angle;entries", {HistType::kTH2F, {{110, -1.1, 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPARecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate cosine of pointing angle;entries", {HistType::kTH2F, {{110, -1.1, 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPAxyRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate CPAxy;entries", {HistType::kTH2F, {{110, -1.1, 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPAxyRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate CPAxy;entries", {HistType::kTH2F, {{110, -1.1, 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPARecSigD0", "#Lambda_{b}^{0} candidates (matched);prong 0 (#Lambda_{c}^{+}) cosine of pointing angle;entries", {HistType::kTH2F, {{110, -1.1, 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPARecBgD0", "#Lambda_{b}^{0} candidates (unmatched);prong 0 (#Lambda_{c}^{+}) cosine of pointing angle;entries", {HistType::kTH2F, {{110, -1.1, 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPARecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate cosine of pointing angle;entries", {HistType::kTH2F, {{220, 0., 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPARecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate cosine of pointing angle;entries", {HistType::kTH2F, {{220, 0., 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPAxyRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate CPAxy;entries", {HistType::kTH2F, {{220, 0., 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPAxyRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate CPAxy;entries", {HistType::kTH2F, {{220, 0., 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPALcRecSig", "#Lambda_{b}^{0} candidates (matched);prong 0 (#Lambda_{c}^{+}) cosine of pointing angle;entries", {HistType::kTH2F, {{220, 0., 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hCPALcRecBg", "#Lambda_{b}^{0} candidates (unmatched);prong 0 (#Lambda_{c}^{+}) cosine of pointing angle;entries", {HistType::kTH2F, {{220, 0., 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hEtaRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate #it{#eta};entries", {HistType::kTH2F, {{100, -2., 2.}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hEtaRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate #it{#eta};entries", {HistType::kTH2F, {{100, -2., 2.}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hRapidityRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate #it{y};entries", {HistType::kTH2F, {{100, -2., 2.}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
Expand All @@ -158,12 +158,17 @@ struct HfTaskLbMc {
registry.add("hDecLengthXYRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate decay length xy (cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hDecLengthRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate decay length (cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hDecLengthXYRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate decay length xy(cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hDecLengthD0RecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate decay length (cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hDecLengthD0RecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate decay length (cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hDecLengthLcRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate decay length (cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hDecLengthLcRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate decay length (cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hDecLengthNormRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate decay length (cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hDecLengthNormRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate decay length (cm);entries", {HistType::kTH2F, {{100, 0., 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hImpParProdLbRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} candidate impact parameter product ;entries", {HistType::kTH2F, {{100, -0.5, 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hImpParProdLbRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} candidate impact parameter product ;entries", {HistType::kTH2F, {{100, -0.5, 0.5}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});

registry.add("hChi2PCARecSig", "#Lambda_{b}^{0} candidates (matched);sum of distances of the secondary vertex to its prongs;entries", {HistType::kTH2F, {{240, -0.01, 0.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hChi2PCARecBg", "#Lambda_{b}^{0} candidates (unmatched);sum of distances of the secondary vertex to its prongs;entries", {HistType::kTH2F, {{240, -0.01, 0.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hThetaStarRecSig", "#Lambda_{b}^{0} candidates (matched);#Lambda_{b}^{0} #cos(#theta^{*});entries", {HistType::kTH2F, {{110, -1.1, 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
registry.add("hThetaStarRecBg", "#Lambda_{b}^{0} candidates (unmatched);#Lambda_{b}^{0} #cos(#theta^{*});entries", {HistType::kTH2F, {{110, -1.1, 1.1}, {(std::vector<double>)bins, "#it{p}_{T} (GeV/#it{c})"}}});
}

Filter filterSelectCandidates = (aod::hf_selcandidate_lb::isSelLbToLcPi >= selectionFlagLb);
Expand Down Expand Up @@ -200,8 +205,10 @@ struct HfTaskLbMc {
registry.fill(HIST("hPtProng1RecSig"), candidate.ptProng1(), candidate.pt());
registry.fill(HIST("hImpParProdLbRecSig"), candidate.impactParameterProduct(), candidate.pt());
registry.fill(HIST("hDecLengthNormRecSig"), candidate.decayLengthXYNormalised(), candidate.pt());
registry.fill(HIST("hCPARecSigD0"), candLc.cpa(), candidate.pt());
registry.fill(HIST("hDecLengthD0RecSig"), candLc.decayLength(), candidate.pt());
registry.fill(HIST("hCPALcRecSig"), candLc.cpa(), candidate.pt());
registry.fill(HIST("hDecLengthLcRecSig"), candLc.decayLength(), candidate.pt());
registry.fill(HIST("hChi2PCARecSig"), candidate.chi2PCA(), candidate.pt());
//registry.fill(HIST("hThetaStarRecSig"), candidate.cosThetaStar(), candidate.pt());
} else {
registry.fill(HIST("hPtRecBg"), candidate.pt());
registry.fill(HIST("hCPARecBg"), candidate.cpa(), candidate.pt());
Expand All @@ -217,8 +224,10 @@ struct HfTaskLbMc {
registry.fill(HIST("hPtProng1RecBg"), candidate.ptProng1(), candidate.pt());
registry.fill(HIST("hImpParProdLbRecBg"), candidate.impactParameterProduct(), candidate.pt());
registry.fill(HIST("hDecLengthNormRecBg"), candidate.decayLengthXYNormalised(), candidate.pt());
registry.fill(HIST("hCPARecBgD0"), candLc.cpa(), candidate.pt());
registry.fill(HIST("hDecLengthD0RecBg"), candLc.decayLength(), candidate.pt());
registry.fill(HIST("hCPALcRecBg"), candLc.cpa(), candidate.pt());
registry.fill(HIST("hDecLengthLcRecBg"), candLc.decayLength(), candidate.pt());
registry.fill(HIST("hChi2PCARecBg"), candidate.chi2PCA(), candidate.pt());
//registry.fill(HIST("hThetaStarRecBg"), candidate.cosThetaStar(), candidate.pt());
}
} // rec

Expand Down