Calculation of Secondary Vertex Probability. More...

#include <secondvertexprob.h>

Inheritance diagram for vertex_lcfi::SecVertexProb:

Collaboration diagram for vertex_lcfi::SecVertexProb:

Public Member Functions
string	name () const
	Name. More...

std::vector< string >	parameterNames () const
	Parameter Names. More...

std::vector< string >	parameterValues () const
	Parameter Values. More...

void	setStringParameter (const string &Parameter, const string &Value)
	Set String Parameter. More...

void	setDoubleParameter (const string &Parameter, const double Value)
	Set Double Parameter. More...

void	setPointerParameter (const string &Parameter, void *Value)
	Set Pointer Parameter. More...

double	calculateFor (DecayChain *MyDecayChain) const
	Run the algorithm on a Jet. More...

string	name () const
	Name. More...

std::vector< string >	parameterNames () const
	Parameter Names. More...

std::vector< string >	parameterValues () const
	Parameter Values. More...

void	setStringParameter (const string &Parameter, const string &Value)
	Set String Parameter. More...

void	setDoubleParameter (const string &Parameter, const double Value)
	Set Double Parameter. More...

void	setPointerParameter (const string &Parameter, void *Value)
	Set Pointer Parameter. More...

double	calculateFor (DecayChain *MyDecayChain) const
	Run the algorithm on a Jet. More...

Additional Inherited Members
Public Types inherited from vertex_lcfi::Algo< DecayChain *, double >
typedef double	OutType

typedef double	OutType

typedef DecayChain *	InType

typedef DecayChain *	InType

Protected Member Functions inherited from vertex_lcfi::Algo< DecayChain *, double >
void	badParameter (std::string Parameter)

void	badParameter (std::string Parameter)

Detailed Description

Calculation of Secondary Vertex Probability.

Algorithm to calculate input for jet flavour tagging. The algorithm returns the probability that all tracks in the seeded vertex are consistent with being generated at the same vertex. The input DecayChain is expected to be the output of vertex_lcfi::TrackAttach algorithm. In this algorithm all the tracks are either added (attached) to the seed vertex or removed from the DecayChain. The algorithm has the following input parameters:

Parameters

Chisquarecut	- cut on the chi squared of the seed Vertex.
Ntrackscut	- cut on the minimum number of tracks in the seed Vertex.

Author: Erik Devetak (e.dev.nosp@m.etak.nosp@m.1@phy.nosp@m.sics.nosp@m..ox.a.nosp@m.c.uk)

Definition at line 29 of file include/vertex_lcfi/algo/inc/secondvertexprob.h.

Member Function Documentation

double vertex_lcfi::SecVertexProb::calculateFor ( DecayChain * MyDecayChain ) const

virtual

Run the algorithm on a Jet.

Calculate the momentum of the Seeded Secondary Vertex.

Parameters

DecayChain Pointer to the DecayChain to be analysed. This DecayChain is an output from the track attach algorithm in which case it is composed only of one vertex and attached tracks.

Returns: double the probability that a secondary vertex is present in the Jet.

Implements vertex_lcfi::Algo< DecayChain *, double >.

Definition at line 79 of file secondvertexprob.cpp.

References vertex_lcfi::DecayChain::allTracks(), and vertex_lcfi::util::prob().

double vertex_lcfi::SecVertexProb::calculateFor ( DecayChain * MyDecayChain ) const

virtual

Run the algorithm on a Jet.

Calculate the momentum of the Seeded Secondary Vertex.

Parameters

DecayChain Pointer to the DecayChain to be analysed. This DecayChain is an output from the track attach algorithm in which case it is composed only of one vertex and attached tracks.

Returns: double the probability that a secondary vertex is present in the Jet.

Implements vertex_lcfi::Algo< DecayChain *, double >.

string vertex_lcfi::SecVertexProb::name ( ) const

virtual

Name.

String name of the algorithm

Returns: String name

Implements vertex_lcfi::Algo< DecayChain *, double >.

string vertex_lcfi::SecVertexProb::name ( ) const

virtual

Name.

String name of the algorithm

Returns: String name

Implements vertex_lcfi::Algo< DecayChain *, double >.

Definition at line 35 of file secondvertexprob.cpp.

std::vector< string > vertex_lcfi::SecVertexProb::parameterNames ( ) const

virtual

Parameter Names.

A vector of the names of the algorithms parameters

Returns: vector of string names

Implements vertex_lcfi::Algo< DecayChain *, double >.

Definition at line 40 of file secondvertexprob.cpp.

std::vector<string> vertex_lcfi::SecVertexProb::parameterNames ( ) const

virtual

Parameter Names.

A vector of the names of the algorithms parameters

Returns: vector of string names

Implements vertex_lcfi::Algo< DecayChain *, double >.

std::vector<string> vertex_lcfi::SecVertexProb::parameterValues ( ) const

virtual

Parameter Values.

A vector of the values of the algorithms parameters, in the same order as parameter names

Returns: vector of string values

Implements vertex_lcfi::Algo< DecayChain *, double >.

std::vector< string > vertex_lcfi::SecVertexProb::parameterValues ( ) const

virtual

Parameter Values.

A vector of the values of the algorithms parameters, in the same order as parameter names

Returns: vector of string values

Implements vertex_lcfi::Algo< DecayChain *, double >.

Definition at line 45 of file secondvertexprob.cpp.

void vertex_lcfi::SecVertexProb::setDoubleParameter	(	const string &	Parameter,
		const double	Value
	)

virtual

Set Double Parameter.

Set a double parameter

Parameters

Parameter	String of parameter name
Value	double of parameter value

Implements vertex_lcfi::Algo< DecayChain *, double >.

Definition at line 58 of file secondvertexprob.cpp.

void vertex_lcfi::SecVertexProb::setDoubleParameter	(	const string &	Parameter,
		const double	Value
	)

virtual

Set Double Parameter.

Set a double parameter

Parameters

Parameter	String of parameter name
Value	double of parameter value

Implements vertex_lcfi::Algo< DecayChain *, double >.

void vertex_lcfi::SecVertexProb::setPointerParameter	(	const string &	Parameter,
		void *	Value
	)

virtual

Set Pointer Parameter.

Set a pointer parameter

Parameters

Parameter	String of parameter name
Value	pointer to void

Implements vertex_lcfi::Algo< DecayChain *, double >.

Definition at line 74 of file secondvertexprob.cpp.

void vertex_lcfi::SecVertexProb::setPointerParameter	(	const string &	Parameter,
		void *	Value
	)

virtual

Set Pointer Parameter.

Set a pointer parameter

Parameters

Parameter	String of parameter name
Value	pointer to void

Implements vertex_lcfi::Algo< DecayChain *, double >.

void vertex_lcfi::SecVertexProb::setStringParameter	(	const string &	Parameter,
		const string &	Value
	)

virtual

Set String Parameter.

Set a string parameter

Parameters

Parameter	String of parameter name
Value	String of parameter value

Implements vertex_lcfi::Algo< DecayChain *, double >.

Definition at line 53 of file secondvertexprob.cpp.

void vertex_lcfi::SecVertexProb::setStringParameter	(	const string &	Parameter,
		const string &	Value
	)

virtual

Set String Parameter.

Set a string parameter

Parameters

Parameter	String of parameter name
Value	String of parameter value

Implements vertex_lcfi::Algo< DecayChain *, double >.

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

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation