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Please consider the following formatting changes to #17330 #1

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Merged
eishahranipinstech-spec merged 1 commit into from
Aug 5, 2026
Merged

Please consider the following formatting changes to #17330 #1

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77 changes: 42 additions & 35 deletions PWGMM/UE/Tasks/flattenicity.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -9,24 +9,24 @@
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.

#include <cmath>
#include <vector>

#include "Framework/runDataProcessing.h"
#include "Framework/AnalysisTask.h"
#include "Framework/AnalysisDataModel.h"
#include "Framework/ASoAHelpers.h"
#include "Framework/HistogramRegistry.h"
#include "Framework/Configurable.h"
#include "Framework/InitContext.h"
#include "Framework/O2DatabasePDGPlugin.h"

#include "ReconstructionDataFormats/Track.h"
#include "Common/DataModel/Multiplicity.h"
#include "Common/DataModel/EventSelection.h"
#include "Common/DataModel/TrackSelectionTables.h"
#include "Common/Core/TrackSelection.h"
#include "Common/Core/TrackSelectionDefaults.h"
#include "Common/DataModel/EventSelection.h"
#include "Common/DataModel/Multiplicity.h"
#include "Common/DataModel/TrackSelectionTables.h"

#include <Framework/ASoAHelpers.h>
#include <Framework/AnalysisDataModel.h>
#include <Framework/AnalysisTask.h>
#include <Framework/Configurable.h>
#include <Framework/HistogramRegistry.h>
#include <Framework/InitContext.h>
#include <Framework/O2DatabasePDGPlugin.h>
#include <Framework/runDataProcessing.h>
#include <ReconstructionDataFormats/Track.h>

#include <cmath>
#include <vector>

using namespace o2;
using namespace o2::framework;
Expand Down Expand Up @@ -72,10 +72,10 @@ struct flattenicityTask {
// Define histograms
AxisSpec flatBins = {40, 0.0, 1.0, "#rho"};
AxisSpec nchBins = {100, -0.5, 99.5, "N_{ch}"};
registry.add("hFlattenicityTruth", "Truth flattenicity; 1-#rho; Events",

registry.add("hFlattenicityTruth", "Truth flattenicity; 1-#rho; Events",
HistType::kTH1D, {flatBins});
registry.add("hFlattenicityReco", "Reco flattenicity; 1-#rho; Events",
registry.add("hFlattenicityReco", "Reco flattenicity; 1-#rho; Events",
HistType::kTH1D, {flatBins});
registry.add("hFlattenicityCorrelation", "Truth vs Reco; 1-#rho_{truth}; 1-#rho_{reco}",
HistType::kTH2D, {flatBins, flatBins});
Expand Down Expand Up @@ -104,55 +104,62 @@ struct flattenicityTask {
// --- Flattenicity calculation ---
float calculateFlattenicity(const std::vector<float>& counts)
{
if (counts.size() != N_CELL) return -1;

if (counts.size() != N_CELL)
return -1;

float total = 0;
for (auto c : counts) total += c;
if (total <= 0) return -1;

for (auto c : counts)
total += c;
if (total <= 0)
return -1;

float mean = total / N_CELL;
if (mean <= 0) return -1;

if (mean <= 0)
return -1;

float sumSq = 0;
for (auto c : counts) {
sumSq += (c - mean) * (c - mean);
}

float rho = std::sqrt(sumSq / (N_CELL * N_CELL)) / mean;
return 1.0f - rho;
}

// --- Process Data ---
void processData(aod::Collision const& collision,
void processData(aod::Collision const& collision,
soa::Filtered<aod::Tracks> const& tracks,
aod::FT0s const& ft0s)
{
// Event selection (Paola/Jesus)
if (!collision.sel8()) return;
if (std::abs(collision.posZ()) >= 10.0f) return;

if (!collision.sel8())
return;
if (std::abs(collision.posZ()) >= 10.0f)
return;

// Track loop for Nch
int nch = 0;
for (auto& track : tracks) {
if (!mySelectionPrim.IsSelected(track)) continue;
if (!mySelectionPrim.IsSelected(track))
continue;
nch++;
}
registry.fill(HIST("hNch"), nch);

// FT0 flattenicity
auto ft0 = collision.ft0();
if (ft0.hasAmplitudeA() && ft0.hasAmplitudeC()) {
auto ampA = ft0.amplitudeA();
auto ampC = ft0.amplitudeC();

std::vector<float> counts(N_CELL, 0.0f);
for (int i = 0; i < ampA.size() && i < N_CH_A; ++i) {
counts[i] = ampA[i];
}
for (int i = 0; i < ampC.size() && i < N_CH_C; ++i) {
counts[N_CH_A + i] = ampC[i];
}

float flat = calculateFlattenicity(counts);
if (flat >= 0) {
registry.fill(HIST("hFlattenicityReco"), flat);
Expand Down