top::MLLWindow Class Reference

Reject events in the invariant mass (of two charged leptons) window. More...

#include <MLLWindowSelector.h>

Inheritance diagram for top::MLLWindow:

Collaboration diagram for top::MLLWindow:

Public Member Functions
	MLLWindow (std::string params)
bool	apply (const top::Event &event) const override
	This does stuff based on the information in an event. More...
bool	applyParticleLevel (const top::ParticleLevelEvent &event) const override
	This does stuff based on the information in a particle level event. More...
std::string	name () const override
	A human readable name. More...

Private Attributes
double	m_cutvalue0
double	m_cutvalue1

Detailed Description

Reject events in the invariant mass (of two charged leptons) window.

Definition at line 14 of file MLLWindowSelector.h.

Constructor & Destructor Documentation

MLLWindow()

top::MLLWindow::MLLWindow ( std::string  params )

explicit

Definition at line 9 of file MLLWindowSelector.cxx.

                                       :
    m_cutvalue0(0.),
    m_cutvalue1(0.) {
    std::istringstream(params) >> m_cutvalue0 >> m_cutvalue1;
  }

Member Function Documentation

apply()

bool top::MLLWindow::apply ( const top::Event &  ) const

overridevirtual

This does stuff based on the information in an event.

The idea is that you implement this to return either true or false based on the information held within top::Event. If this returns true then the event is kept. If it returns false then the event is removed.

Parameters

top::Event

The current event.

Returns

true if the event should be kept, false otherwise.

Implements top::EventSelectorBase.

Definition at line 15 of file MLLWindowSelector.cxx.

                                                   {
    const xAOD::IParticle* lepton0 = 0;
    const xAOD::IParticle* lepton1 = 0;
 
    if (event.m_electrons.size() == 2) {
      lepton0 = event.m_electrons[0];
      lepton1 = event.m_electrons[1];
    } else if (event.m_muons.size() == 2) {
      lepton0 = event.m_muons[0];
      lepton1 = event.m_muons[1];
    } else {
      throw std::runtime_error("MLLWindowSelector::apply: Need two same-flavour electrons or muons");
    }
 
    const double mll = top::invariantMass(*lepton0, *lepton1);
    return mll < m_cutvalue0 || mll > m_cutvalue1;
  }

applyParticleLevel()

bool top::MLLWindow::applyParticleLevel ( const top::ParticleLevelEvent &  ) const

overridevirtual

This does stuff based on the information in a particle level event.

The idea is that you implement this to return either true or false, based on the information held within the top::ParticleLevelEvent. If this function returns true, then the event is kept, otherwise it is removed. The function has a default implementation (which returns true) because it is expected that many EventSelector objects do not operate on ParticleLevelEvent objects.

Parameters

top::ParticleLevelEvent	the current particle level event.
true	if the event should be kept (i.e. it passed the selector criteria), false otherwise.

Reimplemented from top::EventSelectorBase.

Definition at line 33 of file MLLWindowSelector.cxx.

                                                                             {
    // If any of the required collections is a nullptr (i.e. has not been
    // loaded) return false.
    if (not event.m_electrons
        or not event.m_muons) {
      return false;
    }
 
    const xAOD::IParticle* lepton0 = 0;
    const xAOD::IParticle* lepton1 = 0;
 
    if (event.m_electrons->size() == 2) {
      lepton0 = (*event.m_electrons)[0];
      lepton1 = (*event.m_electrons)[1];
    } else if (event.m_muons->size() == 2) {
      lepton0 = (*event.m_muons)[0];
      lepton1 = (*event.m_muons)[1];
    } else {
      throw std::runtime_error("MLLWindowSelector::applyParticleLevel: Need two same-flavour electrons or muons");
    }
 
    const double mll = top::invariantMass(*lepton0, *lepton1);
    return mll < m_cutvalue0 || mll > m_cutvalue1;
  }

name()

std::string top::MLLWindow::name ( ) const

overridevirtual

A human readable name.

Mostly used for printing the cut and value to the screen. Must be implemented for each tool.

Implements top::EventSelectorBase.

Definition at line 58 of file MLLWindowSelector.cxx.

                                  {
    std::stringstream ss;
    ss << "MLLWIN " << m_cutvalue0 << " " << m_cutvalue1;
    return ss.str();
  }

Member Data Documentation

m_cutvalue0

double top::MLLWindow::m_cutvalue0

private

Definition at line 24 of file MLLWindowSelector.h.

m_cutvalue1

double top::MLLWindow::m_cutvalue1

private

Definition at line 25 of file MLLWindowSelector.h.

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

• MLLWindowSelector.h
• MLLWindowSelector.cxx