SelectorCut Class Reference

Simple cut based selector for curl tracks taken from Belle note 1079. More...

#include <SelectorCut.h>

Inheritance diagram for SelectorCut:

Collaboration diagram for SelectorCut:

Public Member Functions
	SelectorCut (bool belleFlag)
	Constructor.
	~SelectorCut ()
	Destructor.
virtual float	getResponse (Particle *iPart, Particle *jPart) override
	Selector response that this pair of particles come from the same mc/actual particle.
virtual std::vector< float >	getVariables (Particle *iPart, Particle *jPart) override
	returns vector of variables used by this selector. More...
virtual float	getOptimalResponseCut ()
	returns optimal cut to use with selector
virtual void	initialize ()
	initialise selector if needed
virtual void	finalize ()
	finalise selector if needed
virtual void	collectTrainingInfo (Particle *, Particle *)
	collect information for training for mva or other selectors

Private Attributes
double	m_magDiffPCut
	cut for momentum magnitude difference
double	m_sameChargePhiCut
	cut for angle between momenta of the two particles when they have the same charge
double	m_oppositeChargePhiCut
	cut for angle between momenta of the two particles when they have the opposite charge

Detailed Description

Simple cut based selector for curl tracks taken from Belle note 1079.

Definition at line 24 of file SelectorCut.h.

Member Function Documentation

getVariables()

std::vector< float > getVariables ( Particle *  iPart, Particle *  jPart  )

overridevirtual

returns vector of variables used by this selector.

Not really useful here but included to be consistent with eventual MVA method.

Implements Selector.

Definition at line 35 of file SelectorCut.cc.

{
  float chargeProduct = iPart -> getCharge() * jPart -> getCharge();
  float magDiffP = (iPart->getMomentum() - jPart->getMomentum()).R();
  float phi = acos(iPart->getMomentum().Unit().Dot(jPart->getMomentum().Unit()));
  return {chargeProduct, magDiffP, phi};
}

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

• analysis/modules/CurlTagger/include/SelectorCut.h
• analysis/modules/CurlTagger/src/SelectorCut.cc