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Add possibility to downscale the number of candidates #4647

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Merged
mpuccio merged 1 commit into from
Feb 8, 2024
Merged

Add possibility to downscale the number of candidates #4647

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14 changes: 14 additions & 0 deletions PWGLF/TableProducer/nucleiSpectra.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,8 @@

#include "PWGLF/DataModel/LFSlimNucleiTables.h"

#include "TRandom3.h"

using namespace o2;
using namespace o2::framework;
using namespace o2::framework::expressions;
Expand Down Expand Up @@ -117,6 +119,12 @@ constexpr int TreeConfigDefault[5][2]{
{0, 0},
{0, 0},
{0, 0}};
constexpr double DownscalingDefault[5][1]{
{1.},
{1.},
{1.},
{1.},
{1.}};
// constexpr bool storeTreesDefault[5]{false, false, false, false, false};
constexpr int species{5};
constexpr int codes[5]{2212, 1000010020, 1000010030, 1000020030, 1000020040};
Expand All @@ -128,6 +136,7 @@ static const std::vector<std::string> names{"proton", "deuteron", "triton", "He3
static const std::vector<std::string> treeConfigNames{"Filter trees", "Use TOF selection"};
static const std::vector<std::string> nSigmaConfigName{"nsigma_min", "nsigma_max"};
static const std::vector<std::string> nDCAConfigName{"max DCAxy", "max DCAz"};
static const std::vector<std::string> DownscalingConfigName{"Fraction of kept candidates"};
static const std::vector<std::string> betheBlochParNames{"p0", "p1", "p2", "p3", "p4", "resolution"};
static const std::vector<std::string> binnedVariableNames{"DCAxy", "DCAz", "TPCnsigma", "TOFnsigma", "TOFmass"};
static const std::vector<std::string> chargeLabelNames{"Positive", "Negative"};
Expand Down Expand Up @@ -194,6 +203,7 @@ struct nucleiSpectra {
Configurable<LabeledArray<double>> cfgBetheBlochParams{"cfgBetheBlochParams", {nuclei::betheBlochDefault[0], 5, 6, nuclei::names, nuclei::betheBlochParNames}, "TPC Bethe-Bloch parameterisation for light nuclei"};
Configurable<LabeledArray<double>> cfgNsigmaTPC{"cfgNsigmaTPC", {nuclei::nSigmaTPCdefault[0], 5, 2, nuclei::names, nuclei::nSigmaConfigName}, "TPC nsigma selection for light nuclei"};
Configurable<LabeledArray<double>> cfgDCAcut{"cfgDCAcut", {nuclei::DCAcutDefault[0], 5, 2, nuclei::names, nuclei::nDCAConfigName}, "Max DCAxy and DCAz for light nuclei"};
Configurable<LabeledArray<double>> cfgDownscaling{"cfgDownscaling", {nuclei::DownscalingDefault[0], 5, 1, nuclei::names, nuclei::DownscalingConfigName}, "Fraction of kept candidates for light nuclei"};
Configurable<LabeledArray<int>> cfgTreeConfig{"cfgTreeConfig", {nuclei::TreeConfigDefault[0], 5, 2, nuclei::names, nuclei::treeConfigNames}, "Filtered trees configuration"};

ConfigurableAxis cfgDCAxyBinsProtons{"cfgDCAxyBinsProtons", {1500, -1.5f, 1.5f}, "DCAxy binning for Protons"};
Expand Down Expand Up @@ -370,6 +380,7 @@ struct nucleiSpectra {
{
auto bc = collision.template bc_as<aod::BCsWithTimestamps>();
initCCDB(bc);
gRandom->SetSeed(bc.timestamp());

spectra.fill(HIST("hRecVtxZData"), collision.posZ());

Expand Down Expand Up @@ -481,6 +492,9 @@ struct nucleiSpectra {
if (cfgTreeConfig->get(iS, 1u) && !selectedTOF) {
continue;
}
if (cfgDownscaling->get(iS) < 1. && gRandom->Rndm() > cfgDownscaling->get(iS)) {
continue;
}
flag |= BIT(iS);
}
}
Expand Down