JetSeedBuilder.cxx

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef XAOD_ANALYSIS
 
#include "JetSeedBuilder.h"
 
//______________________________________________________________________________
JetSeedBuilder::JetSeedBuilder(const std::string& name) :
  TauRecToolBase(name) {}
 
//______________________________________________________________________________
JetSeedBuilder::~JetSeedBuilder() {}
 
//______________________________________________________________________________
StatusCode JetSeedBuilder::execute(xAOD::TauJet& pTau) const {
 
  if ( pTau.jet() == nullptr) {
    ATH_MSG_ERROR("Tau jet link is invalid.");
    return StatusCode::FAILURE;
  }
 
  const xAOD::Jet* jetSeed = pTau.jet();
 
  ATH_MSG_DEBUG("seed is Jet with"
        << " pt=" << jetSeed->pt()
        << " eta=" << jetSeed->eta()
        << " phi=" << jetSeed->phi());
 
  // Do not set eta phi for negative energy jet in trigger
  // For other case, pt is reset to be at least 1e-7. 
  if (inTrigger() && jetSeed->e() < 0) {
    ATH_MSG_DEBUG("TauJet eta/phi will be set in Level2 Trigger for negative energy jet");
    pTau.setP4(jetSeed->pt(),pTau.eta(),pTau.phi(),0.0);
  } 
  else {
    if ( jetSeed->pt() > 1e-7) {
      pTau.setP4(jetSeed->pt(), jetSeed->eta(), jetSeed->phi(), 0.0);
    }
    else {
      pTau.setP4(static_cast<float>(1e-7), jetSeed->eta(), jetSeed->phi(), 0.0);
    }
  
    pTau.setP4(xAOD::TauJetParameters::JetSeed, jetSeed->pt(), jetSeed->eta(), jetSeed->phi(), jetSeed->m());
  }
 
  return StatusCode::SUCCESS;
}
 
#endif