jet::JetIsolation::IsolationAreaBase Class Reference

Defines a zone from which constituents will contribute to the isolation of a jet. More...

Collaboration diagram for jet::JetIsolation::IsolationAreaBase:

Public Member Functions
	IsolationAreaBase (double p, const string &n)
bool	inIsolationArea (double rap, double phi, const xAOD::IParticle *part) const
string	name () const
double	isoArea () const

Public Attributes
double	m_parameter
string	m_name
double	m_deltaRmax2 = 0.0

Detailed Description

Defines a zone from which constituents will contribute to the isolation of a jet.

In most cases, the zone is simply a cone which radius depends on the jet radius.

Definition at line 177 of file JetIsolationTool.cxx.

Constructor & Destructor Documentation

IsolationAreaBase()

jet::JetIsolation::IsolationAreaBase::IsolationAreaBase ( double p, const string & n )

inline

Definition at line 178 of file JetIsolationTool.cxx.

: m_parameter(p), m_name(n){}

Member Function Documentation

inIsolationArea()

bool jet::JetIsolation::IsolationAreaBase::inIsolationArea ( double rap, double phi, const xAOD::IParticle * part ) const

inline

Definition at line 180 of file JetIsolationTool.cxx.

                                                                                    {
    // we use eta rather than rapidity for constituents, because the later can generate FPE (presumably in very low pt PFlow constit)
        double dr2 = xAOD::P4Helpers::deltaR2(rap, phi, part->rapidity(), part->phi());
        return dr2 < m_deltaRmax2;
      }

isoArea()

double jet::JetIsolation::IsolationAreaBase::isoArea ( ) const

inline

Definition at line 191 of file JetIsolationTool.cxx.

                            {
    return m_deltaRmax2*M_PI;
      }

name()

string jet::JetIsolation::IsolationAreaBase::name ( ) const

inline

Definition at line 186 of file JetIsolationTool.cxx.

                          {
        std::ostringstream oss; oss << m_name << int(10*m_parameter);
        return oss.str();        
      }

Member Data Documentation

m_deltaRmax2

double jet::JetIsolation::IsolationAreaBase::m_deltaRmax2 = 0.0

Definition at line 197 of file JetIsolationTool.cxx.

m_name

string jet::JetIsolation::IsolationAreaBase::m_name

Definition at line 196 of file JetIsolationTool.cxx.

m_parameter

double jet::JetIsolation::IsolationAreaBase::m_parameter

Definition at line 195 of file JetIsolationTool.cxx.

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

• JetIsolationTool.cxx