CP::SSVWeightsAlg::nFMethodPileupBasedBinnedClass Class Reference

Collaboration diagram for CP::SSVWeightsAlg::nFMethodPileupBasedBinnedClass:

Public Member Functions
	nFMethodPileupBasedBinnedClass (const nlohmann::json &jsonConfig)
double	getPFake (const double muactual, const int N_fake, const double SF_fake_low, const double SF_fake_high) const

Private Attributes
std::vector< double >	m_muactualBins {}
std::vector< double >	m_nFBins {}
double	m_lowMuHighMuThreshold = -999

Detailed Description

Definition at line 81 of file SSVWeightsAlg.h.

Constructor & Destructor Documentation

nFMethodPileupBasedBinnedClass()

CP::SSVWeightsAlg::nFMethodPileupBasedBinnedClass::nFMethodPileupBasedBinnedClass

(

const nlohmann::json &

jsonConfig

)

Definition at line 725 of file SSVWeightsAlg.cxx.

    : m_muactualBins(jsonConfig["nF_pileup_based_binned"]["muactual_bins"].get<std::vector<double>>()),
      m_nFBins(jsonConfig["nF_pileup_based_binned"]["values"].get<std::vector<double>>())
  {
    // Extract information from JSON file for nFMethodPileupBasedBinned
    m_lowMuHighMuThreshold = jsonConfig["CalibrationInformation"]["lowMuHighMuThreshold"];
  }

Member Function Documentation

getPFake()

double CP::SSVWeightsAlg::nFMethodPileupBasedBinnedClass::getPFake	(	const double	muactual,
		const int	N_fake,
		const double	SF_fake_low,
		const double	SF_fake_high ) const

Definition at line 735 of file SSVWeightsAlg.cxx.

                                    {
 
    double nF = 0;
    double P_fake = 1;
 
    // Find the correct bin for muactual
    for (size_t j = 0; j < m_muactualBins.size() - 1; ++j) {
      if (muactual >= m_muactualBins[j] && muactual < m_muactualBins[j + 1]) {
        nF = m_nFBins[j];
        const auto denom = poisson_pmf(N_fake, nF);
        if (denom == 0.)[[unlikely]]{
          continue;
        }
        if (muactual < m_lowMuHighMuThreshold){
          P_fake = poisson_pmf(N_fake, SF_fake_low * nF) / denom;
        } else {
          P_fake = poisson_pmf(N_fake, SF_fake_high * nF) / denom;
        }
        break; // Bin found, no need to continue loop
      }
    }
    return P_fake;
  }

Member Data Documentation

m_lowMuHighMuThreshold

double CP::SSVWeightsAlg::nFMethodPileupBasedBinnedClass::m_lowMuHighMuThreshold = -999

private

Definition at line 92 of file SSVWeightsAlg.h.

m_muactualBins

std::vector<double> CP::SSVWeightsAlg::nFMethodPileupBasedBinnedClass::m_muactualBins {}

private

Definition at line 90 of file SSVWeightsAlg.h.

{};

m_nFBins

std::vector<double> CP::SSVWeightsAlg::nFMethodPileupBasedBinnedClass::m_nFBins {}

private

Definition at line 91 of file SSVWeightsAlg.h.

{};

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The documentation for this class was generated from the following files:

• SSVWeightsAlg.h
• SSVWeightsAlg.cxx