Rivet analyses

title: MC_ELECTRONS

Monte Carlo validation observables for electron production

Experiment: ()

Status: VALIDATED

Authors: - Andy Buckley

References: none listed

Beams: * *

Beam energies: ANY

Run details: none listed

Any electrons with $p_\perp > 0.5$ GeV are found and projected onto many different observables. To restrict attention to direct/prompt electrons only, use the DIRECT option. To use lepton dressing, use the DRESSED option; this only makes sense for prompt leptons, and is automatically activated if DIRECT=1 is used, hence the main use of DRESSED is to disable lepton dressing in DIRECT=1 mode.

Source code:MC_ELECTRONS.cc

```c++ // -- C++ --

include "Rivet/Analyses/MC_PARTICLES_BASE.hh"

include "Rivet/Projections/LeptonFinder.hh"

include "Rivet/Projections/PromptFinalState.hh"

namespace Rivet {

/// @brief MC validation analysis for electrons class MC_ELECTRONS : public MC_PARTICLES_BASE { public:

MC_ELECTRONS()
    : MC_PARTICLES_BASE("MC_ELECTRONS", 2, "electron") { }


void init() {
  const bool direct = getOption<bool>("DIRECT", false);
  const bool dressed = getOption<bool>("DRESSED", direct);
  MSG_DEBUG("Direct-only: " << direct << ", dressed: " << dressed);
  FinalState electrons(Cuts::abspid == PID::ELECTRON);
  if (!direct) {
    declare(electrons, "Electrons");
  }
  else if (!dressed) {
    declare(PromptFinalState(electrons), "Electrons");
  }
  else {
    LeptonFinder dleps(electrons, FinalState(Cuts::abspid == PID::PHOTON), 0.1);
    declare(dleps, "Electrons");
  }

  MC_PARTICLES_BASE::init();
}


void analyze(const Event& event) {
  const Particles es = apply<ParticleFinder>(event, "Electrons").particlesByPt(Cuts::pT > 0.5 * GeV);
  MC_PARTICLES_BASE::_analyze(event, es);
}


void finalize() {
  MC_PARTICLES_BASE::finalize();
}

};

RIVET_DECLARE_PLUGIN(MC_ELECTRONS);

} ```