A background rescaling that is a simple polynomial in y. More...

Inheritance diagram for fastjet::BackgroundRescalingYPolynomial:

Collaboration diagram for fastjet::BackgroundRescalingYPolynomial:

Public Member Functions
	BackgroundRescalingYPolynomial (double a0=1, double a1=0, double a2=0, double a3=0, double a4=0)
	construct a background rescaling polynomial of the form a0 + a1y + a2y^2 + a3y^3 + a4y^4 More...

virtual double	result (const PseudoJet &jet) const
	return the rescaling factor associated with this jet

Public Member Functions inherited from fastjet::FunctionOfPseudoJet< double >
	FunctionOfPseudoJet ()
	default ctor

virtual	~FunctionOfPseudoJet ()
	default dtor (virtual to allow safe polymorphism)

virtual std::string	description () const
	returns a description of the function (an empty string by default)

double	operator() (const PseudoJet &pj) const
	apply the function using the "traditional" () operator. More...

std::vector< double >	operator() (const std::vector< PseudoJet > &pjs) const
	apply the function on a vector of PseudoJet, returning a vector of the results. More...

Detailed Description

A background rescaling that is a simple polynomial in y.

Constructor & Destructor Documentation

fastjet::BackgroundRescalingYPolynomial::BackgroundRescalingYPolynomial	(	double	a0 = `1`,
		double	a1 = `0`,
		double	a2 = `0`,
		double	a3 = `0`,
		double	a4 = `0`
	)

inline

construct a background rescaling polynomial of the form a0 + a1*y + a2*y^2 + a3*y^3 + a4*y^4

The following values give a reasonable reproduction of the Pythia8 tune 4C background shape for pp collisions at sqrt(s)=7TeV:

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