QCD Library
colour.hpp
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1 
28 #pragma once
29 
30 namespace QCD{
32  constexpr int n_c = 3;
34  constexpr int d_r = 3;
35 
37  constexpr double c_A = 3.;
39  constexpr double c_F = 4./3.;
41  constexpr double T_f = 1./2.;
43 
48  constexpr double d_abcd_AA = 135.;
50 
55  constexpr double d_abcd_AF = 15./2.;
57 
62  constexpr double d_abcd_FF = 5./12.;
64  constexpr double N_A = 8.;
65 }
constexpr int n_c
Dimension of the fundamental representation.
Definition: colour.hpp:32
constexpr double T_f
Trace normalisation.
Definition: colour.hpp:41
constexpr double d_abcd_AF
Product of two symmetrised traces in the adjoint and fundamental representation.
Definition: colour.hpp:55
constexpr double c_A
Quadratic Casimir in the adjoint representation.
Definition: colour.hpp:37
Definition: alpha_s.hpp:35
constexpr double d_abcd_FF
Product of two symmetrised traces in the fundamental representation.
Definition: colour.hpp:62
constexpr int d_r
Dimension of the fundamental representation.
Definition: colour.hpp:34
constexpr double d_abcd_AA
Product of two symmetrised traces in the adjoint representation.
Definition: colour.hpp:48
constexpr double c_F
Quadratic Casimir in the fundamental representation.
Definition: colour.hpp:39
constexpr double N_A
Dimension of the adjoint representation.
Definition: colour.hpp:64