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HEJ  2.3.0
High energy resummation for hadron colliders
Constants.hh
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1 
8 #pragma once
9 
10 namespace HEJ {
13  constexpr double N_C = 3.;
14  constexpr double C_A = N_C;
15  constexpr double C_F = (N_C*N_C - 1.)/(2.*N_C);
16  constexpr double T_F = 0.5;
17  constexpr double N_F = 5.;
18  constexpr double BETA0 = 11./3.*C_A - 4./3.*T_F*N_F;
24  constexpr double CLAMBDA = 0.2;
25  constexpr double CMINPT = 0.2;
29  constexpr double DEFAULT_SOFT_PT_REGULATOR = 0.1;
35  constexpr int COLOUR_OFFSET = 501;
37 } // namespace HEJ
Main HEJ 2 Namespace.
Definition: mainpage.dox:1
constexpr double N_F
number light flavours
Definition: Constants.hh:17
constexpr double C_A
Definition: Constants.hh:14
constexpr double BETA0
Definition: Constants.hh:18
constexpr int COLOUR_OFFSET
Definition: Constants.hh:35
constexpr double CLAMBDA
Default scale for virtual correction cf. eq. (20) in .
Definition: Constants.hh:24
constexpr double N_C
number of Colours
Definition: Constants.hh:13
constexpr double T_F
Definition: Constants.hh:16
constexpr double CMINPT
Definition: Constants.hh:25
constexpr double DEFAULT_SOFT_PT_REGULATOR
default value for the maximal pt fraction of soft radiation in any tagging jets This cut is needed to...
Definition: Constants.hh:29
constexpr double C_F
Definition: Constants.hh:15