jFEXFormTOBs.cxx

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
//***************************************************************************
//                                  jFEXFormTOBs.cxx
//                              -------------------
//     begin                : 11 08 2022
//     email                : sergi.rodriguez@cern.ch
//  ***************************************************************************/
 
#include "jFEXFormTOBs.h"
#include "L1CaloFEXSim/FEXAlgoSpaceDefs.h"
 
namespace LVL1 {
 
// default constructor for persistency
 
jFEXFormTOBs::jFEXFormTOBs(const std::string& type, const std::string& name, const IInterface* parent):
    AthAlgTool(type, name, parent)
{
    declareInterface<IjFEXFormTOBs>(this);
}

jFEXFormTOBs::~jFEXFormTOBs() {}
 
StatusCode jFEXFormTOBs::initialize()
{
    return StatusCode::SUCCESS;
}
 
 
uint32_t jFEXFormTOBs::formTauTOB(int jFEX, int iPhi, int iEta, int EtClus, int IsoRing, bool satTau, int Resolution, int ptMinToTopo )
{
    uint32_t tobWord = 0;
    
    int eta = iEta-8; // needed to substract 8 to be in the FPGA core area
    int phi = iPhi-8; // needed to substract 8 to be in the FPGA core area
    bool sat = satTau;
    
    // correcting C-side. mirror symmetry
    if(jFEX == 1 || jFEX == 2){
        eta = 15 - iEta;
    }
    else if(jFEX == 0){
        eta = 16 - iEta ;
    }
 
    unsigned int et = EtClus/Resolution;
    if (et > 0x7ff) { //0x7ff is 11 bits
        ATH_MSG_DEBUG("Et saturated: " << et );
        et = 0x7ff;
    }
 
    unsigned int iso = IsoRing/Resolution;
    if (iso > 0x7ff) iso = 0x7ff;  //0x7ff is 11 bits
 
    //create basic tobword with 32 bits
    tobWord = tobWord + (iso << FEXAlgoSpaceDefs::jTau_isoBit) + (et << FEXAlgoSpaceDefs::jTau_etBit) + (eta << FEXAlgoSpaceDefs::jTau_etaBit) + (phi << FEXAlgoSpaceDefs::jTau_phiBit) + sat ;
 
    ATH_MSG_DEBUG("tobword tau with iso, et, eta and phi: " << std::bitset<32>(tobWord) );
 
 
    unsigned int minEtThreshold = ptMinToTopo/Resolution;
 
    if (et <= minEtThreshold) return 0;
    else return tobWord;
 
}    
 
int jFEXFormTOBs::Get_calibrated_SRj_ET(int Energy, int res, const std::vector<int>& calibFactors){
    // This is for data taken before the end of 2023
    // ET binned calibration factors (in practice all set to the same value)
    int Et_edge[8] = {20,30,40,50,65,80,110,150};
    int et_range = -1;
    
    //checking upper threshold for SRjet energy
    for(int i=0;i<8; i++){
        if(Energy < Et_edge[i] * 1e3){
            et_range = i;
            break;
        }
    }
    
    //the last threshold is inf therefore, if non of the other thresholds is satisfied, the calibration parameter is set to the maximum
    if(et_range<0){
        et_range = 8;
    }
    
    int calib = calibFactors[et_range]; 
    
    //Converting into 200MeV scale
    int et_200Mev = std::floor(1.0*Energy/res);
    
    //Applying the calibration
    int et = std::floor( (1.0*et_200Mev*calib)/(1<<7) );
    
    return et;
}
 
int jFEXFormTOBs::Get_eta_calibrated_SRj_ET(int Energy, int jfex, unsigned int coreEta, int res, const std::vector<int>& calibFactors){
    // This is for data taken starting from 2024
    // eta binned calibration factors for improved calibration w.r.t. offline jets
    
    //checking upper threshold for SRjet energy
    if (jfex != 0 && jfex != 5) {
      coreEta = std::min(coreEta,7u); // 8 core eta bins for central modules
    } else {
      coreEta = std::min(coreEta,24u); // 25 core eta bins for forward modules
    }
    
    int calib = calibFactors[coreEta]; 
    
    //Converting into 200MeV scale
    int et_200Mev = std::floor(1.0*Energy/res);
    
    //Applying the calibration
    int et = std::floor( (1.0*et_200Mev*calib)/(1<<7) );
    
    return et;
}
 
 
uint32_t jFEXFormTOBs::formSRJetTOB(int jFEX, int iPhi, int iEta, int EtClus, bool sat, int Resolution, int ptMinToTopo, const std::pair<unsigned int, const std::vector<int>&>& calibParameters ) {
    uint32_t tobWord = 0;
    unsigned int eta = 0;
    unsigned int phi = 0;
    unsigned int jFEXSmallRJetTOBEt = 0;
    int Res = 0; // 11 bits reserved
    int Sat = sat;
 
    if(jFEX == 1 || jFEX == 2) {
 
        eta = 15 - iEta;
        phi = iPhi - 8;
    }
    if(jFEX == 3 || jFEX == 4) {
 
        eta = iEta - 8;
        phi = iPhi - 8;
    }
    else if(jFEX == 5) {
 
        eta = iEta - 8;
        if(iEta < FEXAlgoSpaceDefs::jFEX_algoSpace_A_EMIE_eta) { // ieta lower than EMIE stats -> belong to EMB
            phi = iPhi - 8;
        }
        else if(iEta < FEXAlgoSpaceDefs::jFEX_algoSpace_A_FCAL_start_eta) { // ieta lower than FCAL stats -> belong to EMIE
            phi = iPhi - 4;
        }
        else { // rest ieta belongs to FCAL
            phi = iPhi - 2;
        }
    }
    else if(jFEX == 0) {
        
        eta = 36 - iEta;
        if(iEta < FEXAlgoSpaceDefs::jFEX_algoSpace_C_FCAL_end_eta) { // ieta lower than FCal ends -> FCAL
            phi = iPhi -2 ;
        }
        else if(iEta < FEXAlgoSpaceDefs::jFEX_algoSpace_C_EMIE_end_eta) {// ieta lower than EMIE ends -> EMIE
            phi = iPhi -4 ;
        }
        else {// rest of ieta -> EMB
            phi = iPhi -8 ;
        } 
    }
    
    //  Appliying jet calibration
    if (calibParameters.first > m_jetEtaCalibrationBeginTimestamp || m_isMC) {
        jFEXSmallRJetTOBEt = Get_eta_calibrated_SRj_ET(EtClus, jFEX, eta, Resolution, calibParameters.second);
    } else {
        jFEXSmallRJetTOBEt = Get_calibrated_SRj_ET(EtClus, Resolution, calibParameters.second);
    }
    
    if(jFEXSmallRJetTOBEt > 0x7ff) {
        jFEXSmallRJetTOBEt = 0x7ff;
    }
    //create basic tobword with 32 bits
    tobWord = tobWord + (Res << FEXAlgoSpaceDefs::jJ_resBit) + (jFEXSmallRJetTOBEt << FEXAlgoSpaceDefs::jJ_etBit) + (eta << FEXAlgoSpaceDefs::jJ_etaBit) + (phi << FEXAlgoSpaceDefs::jJ_phiBit)  + (Sat);
    ATH_MSG_DEBUG("tobword smallRJet with res, et, eta and phi: " << std::bitset<32>(tobWord) );
    
    // retrieving the threshold for the TOB Et
    unsigned int minEtThreshold = ptMinToTopo/Resolution;
    
    if (jFEXSmallRJetTOBEt <= minEtThreshold) return 0;
    else return tobWord;
}
 
 
 
uint32_t jFEXFormTOBs::formLRJetTOB(int jFEX, int iPhi, int iEta, int EtClus, bool sat, int Resolution, int ptMinToTopo ) {
    
    uint32_t tobWord = 0;
    unsigned int eta = 0;
    unsigned int phi = 0;
    unsigned int jFEXLargeRJetTOBEt = 0;
    int Res = 0; // 9 bits reserved
    int Sat = sat;
 
    if(jFEX == 1 || jFEX == 2) {
 
        eta = 15 - iEta;
        phi = iPhi - 8;
    }
    if(jFEX == 3 || jFEX == 4) {
 
        eta = iEta - 8;
        phi = iPhi - 8;
    }
    else if(jFEX == 5) {
        eta = iEta -8;
 
        if(iEta < FEXAlgoSpaceDefs::jFEX_algoSpace_A_EMIE_eta) { // iEta lower than EMIE stats -> belong to EMB
            phi = iPhi-8;
        }
        else if(iEta < FEXAlgoSpaceDefs::jFEX_algoSpace_A_FCAL_start_eta) { // iEta lower than FCAL stats -> belong to EMIE
            phi = iPhi -4;
        }
        else { // rest iEta belongs to FCAL
            phi = iPhi -2;
        }
    }
    else if(jFEX == 0) {
        eta = 36 - iEta;
 
        if(iEta < FEXAlgoSpaceDefs::jFEX_algoSpace_C_FCAL_end_eta) { // iEta lower than FCal ends -> FCAL
            phi = iPhi -2 ;
        }
        else if(iEta < FEXAlgoSpaceDefs::jFEX_algoSpace_C_EMIE_end_eta) {// iEta lower than EMIE ends -> EMIE
            phi = iPhi -4 ;
        }
        else {// rest of iEta -> EMB
            phi = iPhi -8 ;
        }
    }
    
    jFEXLargeRJetTOBEt = EtClus/Resolution;
    if (jFEXLargeRJetTOBEt > 0x1fff) {
        jFEXLargeRJetTOBEt = 0x1fff;  //0x1fff is 13 bits
    }
    //create basic tobword with 32 bits
    tobWord = tobWord + (Res << FEXAlgoSpaceDefs::jLJ_resBit) + (jFEXLargeRJetTOBEt << FEXAlgoSpaceDefs::jLJ_etBit) + (eta << FEXAlgoSpaceDefs::jLJ_etaBit) + (phi << FEXAlgoSpaceDefs::jLJ_phiBit) + (Sat);
    ATH_MSG_DEBUG("tobword largeRJet with res, et, eta, phi: " << std::bitset<32>(tobWord) );
 
    
    unsigned int minEtThreshold = ptMinToTopo/Resolution;
 
    if (jFEXLargeRJetTOBEt <= minEtThreshold) return 0;
    else return tobWord;
}
 
 
uint32_t jFEXFormTOBs::formSumETTOB(std::tuple<int,bool> & ETlow, std::tuple<int,bool> & EThigh, int Resolution )
{
    uint32_t tobWord = 0;
 
    bool satlow = std::get<1>(ETlow);
    bool sathigh = std::get<1>(EThigh);
 
    unsigned int etlow = std::get<0>(ETlow)/Resolution;
    if (etlow > 0x7fff) { //0x7fff is 15 bits
        ATH_MSG_DEBUG("sumEtlow saturated: " << etlow );
        etlow = 0x7fff;
    }
 
    unsigned int ethigh = std::get<0>(EThigh)/Resolution;
    if (ethigh > 0x7fff) { //0x7fff is 15 bits
        ATH_MSG_DEBUG("sumEthigh saturated: " << ethigh );
        ethigh = 0x7fff;
    }
 
    //create basic tobword with 32 bits
    tobWord = tobWord + (sathigh << FEXAlgoSpaceDefs::jTE_Sat_upperBit) + (ethigh << FEXAlgoSpaceDefs::jTE_Et_upperBit) + (etlow << FEXAlgoSpaceDefs::jTE_Et_lowerBit) + (satlow << FEXAlgoSpaceDefs::jTE_Sat_lowerBit) ;
    ATH_MSG_DEBUG("tobword SumET with Sathigh, EThigh, ETlow and Satlow  : " << std::bitset<32>(tobWord) );
 
    return tobWord;
 
}
    
    
uint32_t jFEXFormTOBs::formMetTOB(int METX, int METY, bool sat, int Resolution ) {
    uint32_t tobWord = 0;
 
    bool Sat = sat;
    unsigned int res = 0;
 
    int metX = std::floor(1.0*METX/Resolution);
    int metY = std::floor(1.0*METY/Resolution);
 
    //0x7fff is 15 bits (decimal value 32767), however as MET is a signed value (can be negative) only 14 bits are allowed (16383) the MSB is the sign
    if (std::abs(metX) > 0x3fff) {
        ATH_MSG_DEBUG("sumEtlow saturated: " << metX );
        if (metX < 0) {
            metX = 0x4000; //most negative value for 15b signed two's complement
        } else {
            metX = 0x3fff;
        }
    }
 
    
    if (std::abs(metY) > 0x3fff) { //0x7fff is 15 bits (decimal value 32767), however as MET is a signed value (can be negative) only 14 bits are allowed (16383)
        ATH_MSG_DEBUG("sumEthigh saturated: " << metY );
        if (metY < 0) {
            metY = 0x4000; //most negative value for 15b signed two's complement
        } else {
            metY = 0x3fff;
        }
    }
 
    //create basic tobword with 32 bits
    //note that the bit-wise and with the 15bit mask (0x7fff) inherently accounts for the conversion of negative values from 32b signed (int) to 15b signed
    tobWord = tobWord + (res << FEXAlgoSpaceDefs::jXE_ResBit) + ((metY & 0x7fff) << FEXAlgoSpaceDefs::jXE_Ey_Bit) + ((metX & 0x7fff) << FEXAlgoSpaceDefs::jXE_Ex_Bit) + (Sat << FEXAlgoSpaceDefs::jXE_SatBit)  ;
    ATH_MSG_DEBUG("tobword MET with Res, MET_Y, MET_X, Sat: " << std::bitset<32>(tobWord) );
 
    return tobWord;
 
}
 
 
 
} // end of namespace bracket