HEJ::CrossSectionAccumulator Class Reference

Sum of Cross Section for different subproccess. More...

#include <CrossSectionAccumulator.hh>

Public Member Functions
void	fill (Event const &ev)
void	fill (double wt, event_type::EventType type)
void	fill (double wt, double err, event_type::EventType type)
void	fill_correlated (std::vector< Event > const &evts)
	Fill with multiple correlated weights. More...
template<class ConstIt >
void	fill_correlated (ConstIt begin, ConstIt end)
	iterator implementation of fill_correlated() More...
void	fill_correlated (double sum, double sum2, event_type::EventType type)
	explicit version of fill_correlated() by giving sum(wt) and sum(wt^2) More...
auto	begin () const
	begin of Cross Section and error for subprocesses More...
auto	end () const
	end of Cross Section and error for subprocesses More...
XSWithError< double > const &	total () const
	total Cross Section and error More...
XSWithError< double > const &	at (event_type::EventType type) const
	Cross Section and error of specific type. More...
XSWithError< double > const &	operator[] (event_type::EventType type) const
	Cross Section and error of specific type. More...

Detailed Description

Sum of Cross Section for different subproccess.

Member Function Documentation

at()

XSWithError<double> const& HEJ::CrossSectionAccumulator::at ( event_type::EventType  type ) const

inline

Cross Section and error of specific type.

begin()

auto HEJ::CrossSectionAccumulator::begin ( ) const

inline

begin of Cross Section and error for subprocesses

end()

auto HEJ::CrossSectionAccumulator::end ( ) const

inline

end of Cross Section and error for subprocesses

fill() [1/3]

void HEJ::CrossSectionAccumulator::fill	(	double	wt,
		double	err,
		event_type::EventType	type
	)

Fill by weight, error and type

Note

The error will be added to the current error

fill() [2/3]

void HEJ::CrossSectionAccumulator::fill	(	double	wt,
		event_type::EventType	type
	)

Fill by weight and type

Note

for multiple resummation events use fill_correlated() instead

fill() [3/3]

void HEJ::CrossSectionAccumulator::fill

(

Event const &

ev

)

Fill with single event

Note

for multiple resummation events use fill_correlated() instead

fill_correlated() [1/3]

template<class ConstIt >

void HEJ::CrossSectionAccumulator::fill_correlated	(	ConstIt	begin,
		ConstIt	end
	)

iterator implementation of fill_correlated()

fill_correlated() [2/3]

void HEJ::CrossSectionAccumulator::fill_correlated	(	double	sum,
		double	sum2,
		event_type::EventType	type
	)

explicit version of fill_correlated() by giving sum(wt) and sum(wt^2)

fill_correlated() [3/3]

void HEJ::CrossSectionAccumulator::fill_correlated

(

std::vector< Event > const &

evts

)

Fill with multiple correlated weights.

This should be used to fill multiple reweighted events, coming from the same fixed order point. Total error for \(N\) fixed order points each giving \(M_i\) resummation events is:

\[ \delta^2=\sum_i \left(\sum_j w_{i,j}\right)^2 +\sum_{i,j} \left(w_{i,j}\right)^2, \]

Note

This is equivalent to fill() for only one reweighted event coming from each fixed order point ( \(M_i=1\))

operator[]()

XSWithError<double> const& HEJ::CrossSectionAccumulator::operator[] ( event_type::EventType  type ) const

inline

Cross Section and error of specific type.

total()

XSWithError<double> const& HEJ::CrossSectionAccumulator::total ( ) const

inline

total Cross Section and error

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

• /home/amaier/tmp/website/build/hej/include/HEJ/CrossSectionAccumulator.hh