Constants.hh File Reference

Header file defining all global constants used for HEJ. More...

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Namespaces
namespace	HEJ
	Main HEJ 2 Namespace.

Variables
QCD parameters
constexpr double	HEJ::N_C = 3.
	number of Colours More...
constexpr double	HEJ::C_A = N_C
	\(C_A\) More...
constexpr double	HEJ::C_F = (N_C*N_C - 1.)/(2.*N_C)
	\(C_F\) More...
constexpr double	HEJ::T_F = 0.5
	\(t_f\) More...
constexpr double	HEJ::N_F = 5.
	number light flavours More...
constexpr double	HEJ::BETA0 = 11./3.*C_A - 4./3.*T_F*N_F
Generation Parameters
constexpr double	HEJ::CLAMBDA = 0.2
	Default scale for virtual correction \(\lambda\) cf. eq. (20) in [1]. More...
constexpr double	HEJ::CMINPT = 0.2
constexpr double	HEJ::DEFAULT_SOFT_PT_REGULATOR = 0.1
	default value for the maximal pt fraction of soft radiation in any tagging jets This cut is needed to regulate an otherwise uncancelled divergence. More...
Conventional Parameters
constexpr int	HEJ::COLOUR_OFFSET = 501

Detailed Description

Header file defining all global constants used for HEJ.

Authors

The HEJ collaboration (see AUTHORS for details)

Date

2019-2020

Copyright

GPLv2 or later