TrkChi2DeflCut Class Reference

The tracker chi2 vs deflection cut. More...

#include <TrkChi2DeflCut.h>

Inheritance diagram for TrkChi2DeflCut:

List of all members.

Public Member Functions
	TrkChi2DeflCut (const char *cutName, float p0, float p1, float p2)
	Constructor.
	~TrkChi2DeflCut ()
	Destructor.
int	Check (PamLevel2 *event)
	The tracker chi2 vs deflection check.
Private Attributes
float	_p0
float	_p1
float	_p2

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Detailed Description

The tracker chi2 vs deflection cut.

Events whose track has been fitted with a chi2 greater than Chi2(eta) are discarded. Chi2(eta) is a function which gives the maximum value of chi2 associated to a certain deflection eta; in current implementation it is parameterized as:

Chi2(eta) = p0 + p1 * eta^2 + p2 * eta ^4

where p0, p1 and p2 are parameters.

Definition at line 28 of file TrkChi2DeflCut.h.

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Constructor & Destructor Documentation

TrkChi2DeflCut::TrkChi2DeflCut	(	const char *	cutName,
		float	p0,
		float	p1,
		float	p2
	)			[inline]

Constructor.

Parameters:

	cutName	The cut's name.
	p0	The constant term in Chi2(eta).
	p1	The coefficient or the quadratic term in Chi2(eta).
	p2	The coefficient or the quartic term in Chi2(eta).

Definition at line 38 of file TrkChi2DeflCut.h.

TrkChi2DeflCut::~TrkChi2DeflCut

(

)

[inline]

Destructor.

Definition at line 58 of file TrkChi2DeflCut.h.

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Member Function Documentation

int TrkChi2DeflCut::Check

(

PamLevel2 *

event

)

[virtual]

The tracker chi2 vs deflection check.

Parameters:

event

The event to analyze.

Returns:

CUTOK if chi2 < Chi2(eta).

0 if not

Implements PamCut.

Definition at line 10 of file TrkChi2DeflCut.cpp.

References _p0, _p1, _p2, and CUTOK.

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Member Data Documentation

float TrkChi2DeflCut::_p0 [private]

Definition at line 87 of file TrkChi2DeflCut.h.

Referenced by Check().

float TrkChi2DeflCut::_p1 [private]

Definition at line 87 of file TrkChi2DeflCut.h.

Referenced by Check().

float TrkChi2DeflCut::_p2 [private]

Definition at line 87 of file TrkChi2DeflCut.h.

Referenced by Check().

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

• TrkCuts/TrkChi2DeflCut/TrkChi2DeflCut.h
• TrkCuts/TrkChi2DeflCut/TrkChi2DeflCut.cpp