MomentumResolSystematics Class Reference

#include <MomentumResolSystematics.hxx>

Inheritance diagram for MomentumResolSystematics:

Public Member Functions
	MomentumResolSystematics ()
virtual void	Apply (const ToyExperiment &toy, AnaEventC &event)
	Apply the systematic.
bool	GetVariation (AnaTrackB *track, Float_t &variation, const ToyExperiment &exp)
	Get the variation given a track.
bool	GetVariationTPC (AnaTPCParticleB *track, Float_t &variation, const ToyExperiment &exp)
	Get the variation given a track.
virtual bool	UndoSystematic (AnaEventC &event)
	Undo the systematic variations done by ApplyVariation. This is faster tha reseting the full Spill.
Public Member Functions inherited from EventVariationBase
	EventVariationBase ()
	Create the systematic, with one parameter.
	EventVariationBase (UInt_t npar)
	Create the systematic, specifying the number of systematic parameters.
virtual	~EventVariationBase ()
	Everyone should have a destructor.
virtual void	InitializeEvent (const AnaEventC &event, const SelectionBase &sel)
	Initialize the SystBox for this event.
virtual void	InitializeEvent (const AnaEventC &event)
Public Member Functions inherited from SystematicBase
	SystematicBase ()
	Create the systematic, with one parameter.
	SystematicBase (UInt_t npar)
	Create the systematic, specifying the number of systematic parameters.
virtual	~SystematicBase ()
	Everyone should have a destructor.
UInt_t	GetNParameters () const
	Returns the number of systematic parameters associated to this systematic.
void	SetNParameters (int N)
	Set the number of systematic parameters associated to this systematic.
virtual const char *	GetName () const
	Return the name of this systematic. This overrides the TObject::GetName() interface.
const std::string &	Name () const
	Return the name of this systematic.
void	SetName (const std::string &name)
	Set the name of this systematic.
Int_t	GetIndex () const
	Return the index of this systematic.
void	SetIndex (Int_t index)
	Set the index of this systematic.
TypeEnum	Type () const
	Return the type of this systematic.
std::string	ConvertType ()
	Return the type of this systematic.
void	SetType (TypeEnum type)
	Set the type of this systematic.
PDFEnum	PDF () const
	Return the PDF of this systematic.
std::string	ConvertPDF ()
	Return the PDF of this systematic.
void	SetPDF (PDFEnum PDF)
	Set the PDF of this systematic.
void	SetEnabled (bool ena)
	Set the enable bit.
bool	IsEnabled () const
	Returns the enable bit.
virtual void	FinalizeEvent (const AnaEventC &event)
	Delete the SystBox for this event.
SystBoxB *	GetSystBox (const AnaEventC &event, Int_t isel=0, Int_t ibranch=0) const
	Get the SystBox corresponding to a selection, branch and event.
virtual void	Initialize (Int_t nsel, Int_t isel, Int_t nbranch, Int_t nevents)
	Create the array of SystBox.
	ClassDef (SystematicBase, 2)
Public Member Functions inherited from MomentumResolVariation
virtual void	ApplyVariation (AnaTrackB *track, const ToyExperiment &exp)
virtual void	ApplyVariationTPCBased (AnaTrackB *track, const ToyExperiment &exp)
virtual void	ApplyVariationTPC (AnaTPCParticleB *track, const ToyExperiment &exp)
	Smear TPC track based on the corresponding true track.

Protected Member Functions
Int_t	GetRelevantRecObjectGroups (const SelectionBase &sel, Int_t *IDs) const
	Get the TrackGroup IDs array for this systematic.
Protected Member Functions inherited from EventVariationBase
virtual bool	IsRelevantRecObject (const AnaEventC &, const AnaRecObjectC &) const
	Check whether a AnaRecObject is relevant for this systematic or not.
void	FillSystBox (const AnaEventC &event, const SelectionBase &sel, SystBoxB &box)
	Fills the SystBox.
Protected Member Functions inherited from MomentumResolVariation
bool	GetXBinnedValues (AnaTrackB *track, Float_t &value1, Float_t &value2, Int_t &index1, Int_t &index2, ModeEnum mode)
	Get parameters for this global track assumed one uses X bins.
bool	GetXBinnedValues (AnaTPCParticleB *tpcTrack, Float_t &value1, Float_t &value2, Int_t &index1, Int_t &index2, ModeEnum mode)
	Get parameters for this tpc track assumed one uses X bins.
bool	GetXBinnedValues (Float_t xmin, Float_t xmax, Float_t &value1, Float_t &value2, Int_t &index1, Int_t &index2, ModeEnum mode)

Protected Attributes
bool	_full_correlations
	Value of psycheSystematics.Tracker.FullCorrelations parameter.
bool	_tpc_based_var
	Whether to do the smearing based on the local TPC mom.
bool	_useP0DFV
Protected Attributes inherited from SystematicBase
std::string	_name
	The name of this systematic.
Int_t	_index
	The index of this systematic (needed by SystematicsManager);.
TypeEnum	_type
	The type of this systematic (variation, weight or flux)
bool	_enabled
	Is this systematic enabled ?
PDFEnum	_PDF
	The PDF use for the systematic parameter scan.
UInt_t	_nParameters
	the number of systematic parameters
SystBoxB ****	_systBoxes
	----—— Relevant objects for this systematic ------------—— More...
Int_t	_systBoxesNSel
Int_t	_systBoxesNBranches [NMAXSELECTIONS]
Int_t	_systBoxesNEvents [NMAXSELECTIONS][NMAXBRANCHES]
Protected Attributes inherited from MomentumResolVariation
BinnedParams *	_params
	Binned data to read the parameters.

Additional Inherited Members
Public Types inherited from SystematicBase
enum	TypeEnum { kVariation = 0, kWeight, kFlux, kUnknown }
	Enumerator describing the values that _type member can take.
enum	PDFEnum {   kGaussian = 0, kUniform, kBinomial, kMultinomial,   kUnknownPDF }
	Enumerator describing the values that _PDF member can take.
Public Types inherited from MomentumResolVariation
enum	ModeEnum { kCorr, kSyst }
Static Public Member Functions inherited from MomentumResolVariation
static AnaParticleB *	GetClosestTPCSegmentWithGoodDQ (const AnaTrackB &track, const Float_t *pos)
	Get TPC segment that satisfies DQ and is closest.

Detailed Description

This systematic smears the momentum of tracks with TPC information, by a random amount from a Gaussian distribution.

The amount each track is changed by uses two Gaussian distributions. The first distribution uses the input parameters to select a resolution. This is called once for each virtual analysis. The second distribution then uses the chosen resolution as its width, and the amount to vary each track's momentum is chosen from this distribution. This is called for each track individually.

Definition at line 16 of file MomentumResolSystematics.hxx.

Constructor & Destructor Documentation

MomentumResolSystematics()

MomentumResolSystematics::MomentumResolSystematics

(

)

Instantiate the momentum resolution systematic. nbins is the number of bins in the PDF. addResol and addResolError describe the Gaussian distribution from which the resolution of each virtual analysis is selected from.

Definition at line 33 of file MomentumResolSystematics.cxx.

                                                  :EventVariationBase(1){
  //********************************************************************

  _params = new BinnedParams("MomentumResol", 
      BinnedParams::k1D_SYMMETRIC,
      versionUtils::Extension());

  // Whether to use local TPC based smearing
  _tpc_based_var = (bool)ND::params().GetParameterI("psycheSystematics.MomResol.UseTPCBased");
  _useP0DFV = (bool) ND::params().GetParameterI("psycheSystematics.Tracker.UseP0DFV");

  SetNParameters(_params->GetNBins());

  // Wether assume full correlation between syst bins
  _full_correlations = ND::params().GetParameterI("psycheSystematics.Tracker.FullCorrelations");
}

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

• /hep/T2K/nd280rep/ANALYSIS/HIGHLAND2/ANAPARTICLE/psyche/psycheSystematics/v3r12/src/MomentumResolSystematics.hxx
• /hep/T2K/nd280rep/ANALYSIS/HIGHLAND2/ANAPARTICLE/psyche/psycheSystematics/v3r12/src/MomentumResolSystematics.cxx