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JAANET::JEvtWeightFactorMupage Struct Referencefinal

Implementation of reweighting factor for mupage events according to a specifiable ROOT TFormula. More...

#include <JEvtWeightFactorMupage.hh>

Inheritance diagram for JAANET::JEvtWeightFactorMupage:
JLANG::JClonable< JClonable_t, JDerived_t >

Public Types

enum  variables {
  MUON_MULTIPLICITY , MEAN_ZENITH_ANGLE , TOTAL_MUON_ENERGY , LATERAL_SPREAD ,
  NUMBER_OF_VARIABLES
}
 Indices of reweighting variables for MUPAGE. More...
 
typedef JClonable< JClonable_t >::clone_type clone_type
 

Public Member Functions

 JEvtWeightFactorMupage ()
 Default constructor. More...
 
 JEvtWeightFactorMupage (const char *const name, const char *const formula)
 Constructor. More...
 
bool is_valid () const override final
 Check whether this formula is valid. More...
 
double getFactor (const Evt &evt) const override final
 Get weighting factor for given event. More...
 
virtual clone_type clone () const override
 Get clone of this object. More...
 

Detailed Description

Implementation of reweighting factor for mupage events according to a specifiable ROOT TFormula.

Note: The ROOT TFormula may assume any number of parameters, but should be restricted to
the physical variables listed among JEvtWeightFactorMupage::variables.
These variables may be specified within the ROOT TFormula as 'x[<index>]',
where <index> corresponds to the index of the desired physical variable within JEvtWeightFactorMupage::variables.

Definition at line 40 of file JEvtWeightFactorMupage.hh.

Member Typedef Documentation

◆ clone_type

template<class JClonable_t , class JDerived_t >
typedef JClonable<JClonable_t>::clone_type JLANG::JClonable< JClonable_t, JDerived_t >::clone_type
inherited

Definition at line 61 of file JClonable.hh.

Member Enumeration Documentation

◆ variables

enum JAANET::JEvtWeightFactorMupage::variables

Indices of reweighting variables for MUPAGE.

Enumerator
MUON_MULTIPLICITY 

Muon multiplicity

MEAN_ZENITH_ANGLE 

Average cosine of zenith angle.

TOTAL_MUON_ENERGY 

Muon bundle total energy [GeV].

LATERAL_SPREAD 

Muon bundle lateral spread [m].

NUMBER_OF_VARIABLES 

Number of reweighting variables;
N.B. This enum value needs to be specified last!

Definition at line 46 of file JEvtWeightFactorMupage.hh.

46  {
47  MUON_MULTIPLICITY, //!< Muon multiplicity
48  MEAN_ZENITH_ANGLE, //!< Average cosine of zenith angle
49  TOTAL_MUON_ENERGY, //!< Muon bundle total energy [GeV]
50  LATERAL_SPREAD, //!< Muon bundle lateral spread [m]
51 
52  NUMBER_OF_VARIABLES //!< Number of reweighting variables; \n
53  //!< N.B.\ This enum value needs to be specified last!
54  };
JAANET::JEvtWeightFactorMupage::TOTAL_MUON_ENERGY
@ TOTAL_MUON_ENERGY
Muon bundle total energy [GeV].
Definition: JEvtWeightFactorMupage.hh:49
JAANET::JEvtWeightFactorMupage::LATERAL_SPREAD
@ LATERAL_SPREAD
Muon bundle lateral spread [m].
Definition: JEvtWeightFactorMupage.hh:50
JAANET::JEvtWeightFactorMupage::MEAN_ZENITH_ANGLE
@ MEAN_ZENITH_ANGLE
Average cosine of zenith angle.
Definition: JEvtWeightFactorMupage.hh:48
JAANET::JEvtWeightFactorMupage::NUMBER_OF_VARIABLES
@ NUMBER_OF_VARIABLES
Number of reweighting variables; N.B. This enum value needs to be specified last!
Definition: JEvtWeightFactorMupage.hh:52

Constructor & Destructor Documentation

◆ JEvtWeightFactorMupage() [1/2]

JAANET::JEvtWeightFactorMupage::JEvtWeightFactorMupage ( )
inline

Default constructor.

Definition at line 60 of file JEvtWeightFactorMupage.hh.

61  {}

◆ JEvtWeightFactorMupage() [2/2]

JAANET::JEvtWeightFactorMupage::JEvtWeightFactorMupage ( const char *const  name,
const char *const  formula 
)
inline

Constructor.

Parameters
namename
formulaformula

Definition at line 70 of file JEvtWeightFactorMupage.hh.

72  {
73  getFormula().SetName(name);
74 
75  compile(formula);
76  }

Member Function Documentation

◆ is_valid()

bool JAANET::JEvtWeightFactorMupage::is_valid ( ) const
inlinefinaloverride

Check whether this formula is valid.

Returns
true if valid; else false

Definition at line 84 of file JEvtWeightFactorMupage.hh.

85  {
86  const int N = getFormula().GetNpar();
87 
88  return N >= 0 && N <= (int) NUMBER_OF_VARIABLES;
89  }

◆ getFactor()

double JAANET::JEvtWeightFactorMupage::getFactor ( const Evt &  evt) const
inlinefinaloverride

Get weighting factor for given event.

Parameters
evtevent
Returns
weighting factor

Definition at line 98 of file JEvtWeightFactorMupage.hh.

99  {
100  using namespace std;
101  using namespace JPP;
102 
103  vector<JTrack3E> muons;
104 
105  for (vector<Trk>::const_iterator i = evt.mc_trks.cbegin(); i != evt.mc_trks.cend(); ++i) {
106  if (is_muon(*i) && is_finalstate(*i)) {
107  muons.push_back(getTrack(*i));
108  }
109  }
110 
111  if (muons.empty()) {
112  THROW(JValueOutOfRange, "JEvtWeightFactorMupage::operator(): No muon for event " << evt.id << '.' << endl);
113  }
114 
115  Double_t vars[NUMBER_OF_VARIABLES] = { 0.0 };
116 
117  double Etot = 0.0;
118  JVector3D dir;
119 
120  for (vector<JTrack3E>::const_iterator i = muons.begin(); i != muons.end(); ++i) {
121  Etot += i->getE();
122  dir += i->getDirection();
123  }
124 
125  const JDirection3D D(dir);
126  const JRotation3D R(D);
127 
128  for (vector<JTrack3E>::iterator i = muons.begin(); i != muons.end(); ++i) {
129  i->rotate(R);
130  }
131 
132  vector<Trk>::const_iterator iBundle = find_if(evt.mc_trks.cbegin(), evt.mc_trks.cend(),
133  make_predicate(&Trk::status, TRK_ST_MUONBUNDLE));
134 
135  vars[MUON_MULTIPLICITY] = (double) muons.size();
136  vars[TOTAL_MUON_ENERGY] = (iBundle != evt.mc_trks.cend() ? iBundle->E : Etot);
137  vars[MEAN_ZENITH_ANGLE] = D.getDZ();
138 
139  if (this->GetNdim() > (int) LATERAL_SPREAD) {
140 
141  const JCircle2D circle = JCircle2D(muons.cbegin(), muons.cend()); // smallest enclosing circle
142 
143  vars[LATERAL_SPREAD] = circle.getRadius();
144  }
145 
146  return getFormula().EvalPar(&vars[0]);
147  }
THROW
#define THROW(JException_t, A)
Marco for throwing exception with std::ostream compatible message.
Definition: JException.hh:712
JGEOMETRY2D::JCircle2D
Data structure for circle in two dimensions.
Definition: JCircle2D.hh:35
JGEOMETRY2D::JCircle2D::getRadius
double getRadius() const
Get radius.
Definition: JCircle2D.hh:144
JGEOMETRY3D::JDirection3D
Data structure for direction in three dimensions.
Definition: JDirection3D.hh:35
JGEOMETRY3D::JRotation3D
Rotation matrix.
Definition: JRotation3D.hh:114
JGEOMETRY3D::JVector3D
Data structure for vector in three dimensions.
Definition: JVector3D.hh:36
JLANG::JValueOutOfRange
Exception for accessing a value in a collection that is outside of its range.
Definition: JException.hh:180
JAANET::getTrack
JTrack3E getTrack(const Trk &track)
Get track.
Definition: JAAnetToolkit.hh:262
JAANET::is_finalstate
bool is_finalstate(const Trk &track)
Test whether given track corresponds to a final state particle.
Definition: JAAnetToolkit.hh:476
JAANET::is_muon
bool is_muon(const Trk &track)
Test whether given track is a (anti-)muon.
Definition: JAAnetToolkit.hh:338
JLANG::make_predicate
JPredicate< JResult_t T::*, JComparison::eq > make_predicate(JResult_t T::*member, const JResult_t value)
Helper method to create predicate for data member.
Definition: JPredicate.hh:128
JPP
This name space includes all other name spaces (except KM3NETDAQ, KM3NET and ANTARES).
Definition: JAAnetToolkit.hh:43
std
Definition: JSTDTypes.hh:14
Evt::mc_trks
std::vector< Trk > mc_trks
MC: list of MC truth tracks.
Definition: Evt.hh:49
Evt::id
int id
offline event identifier
Definition: Evt.hh:22
Trk::status
int status
MC status code, see km3net-dataformat/definitions/trkmembers.csv for values.
Definition: Trk.hh:28
TRK_ST_MUONBUNDLE
static const int TRK_ST_MUONBUNDLE
initial state muon bundle (mupage)
Definition: trkmembers.hh:18

◆ clone()

template<class JClonable_t , class JDerived_t >
virtual clone_type JLANG::JClonable< JClonable_t, JDerived_t >::clone ( ) const
inlineoverridevirtualinherited

Get clone of this object.

Returns
pointer to newly created object

Reimplemented in JTOOLS::JMultiMapTransformer< N, JArgument_t >::JMultiMapDefaultTransformer, JPHYSICS::JPDFTransformer< 5, JArgument_t >, JPHYSICS::JPDFTransformer< 4, JArgument_t >, JPHYSICS::JPDFTransformer< 3, JArgument_t >, JPHYSICS::JPDFTransformer< 2, JArgument_t >, JPHYSICS::JPDGTransformer_t< JArgument_t >, JPHYSICS::JPD0Transformer_t< JArgument_t >, and JPHYSICS::JPDFTransformer_t< JArgument_t >.

Definition at line 69 of file JClonable.hh.

70  {
71  return new JDerived_t(static_cast<const JDerived_t&>(*this));
72  }
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