HEJ::PDF Class Reference

Class for interaction with a PDF set. More...

#include <PDF.hh>

Public Member Functions
	PDF (int id, ParticleID beam1, ParticleID beam2)
	PDF Constructor. More...
double	pdfpt (size_t beam_idx, double x, double q, ParticleID id) const
	Calculate the pdf value x*f(x, q) More...
double	Halphas (double q) const
	Value of the strong coupling at the given scale. More...
bool	inRangeQ (double q) const
	Check if the energy scale is within the range covered by the PDF set. More...
bool	inRangeX (double x) const
	Check if the momentum fraction is within the range covered by the PDF set. More...

Detailed Description

Class for interaction with a PDF set.

Constructor & Destructor Documentation

PDF()

HEJ::PDF::PDF	(	int	id,
		ParticleID	beam1,
		ParticleID	beam2
	)

PDF Constructor.

Parameters

id	Particle ID according to PDG
beam1	Particle ID of particle in beam 1
beam2	Particle ID of particle in beam 2

Member Function Documentation

Halphas()

double HEJ::PDF::Halphas

(

double

q

)

const

Value of the strong coupling at the given scale.

Parameters

q	Renormalisation scale

Returns

Value of the strong coupling constant

inRangeQ()

bool HEJ::PDF::inRangeQ

(

double

q

)

const

Check if the energy scale is within the range covered by the PDF set.

Parameters

q	Energy Scale

Returns

true if q is within the covered range, false otherwise

inRangeX()

bool HEJ::PDF::inRangeX

(

double

x

)

const

Check if the momentum fraction is within the range covered by the PDF set.

Parameters

x	Momentum Fraction

Returns

true if x is within the covered range, false otherwise

pdfpt()

double HEJ::PDF::pdfpt	(	size_t	beam_idx,
		double	x,
		double	q,
		ParticleID	id
	)		const

Calculate the pdf value x*f(x, q)

Parameters

beam_idx	Beam number (0 or 1)
x	Momentum fraction
q	Energy scale
id	PDG particle id

Returns

x*f(x, q)

Returns 0 if x or q are outside the range covered by the PDF set

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

• /home/andersen/HEJProjects/website/build/hej/include/HEJ/PDF.hh