APFEL 4.8.0
A PDF evolution library in C++
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Namespaces
gammak.h File Reference

Go to the source code of this file.

Namespaces

namespace  apfel
 Namespace for all APFEL++ functions and classes.
 

Functions

Cusp anomalous dimension.

Coefficients of the γK anomalous dimension. The expressions up to O(αs3) are taken from eq. (59) https://arxiv.org/pdf/1705.07167.pdf. While the expressions at O(αs4) are taken from eqs. (6.3) of https://arxiv.org/pdf/1911.10174.pdf or Eq. (6) of https://arxiv.org/pdf/2002.04617v2.pdf

Note
All the expressions do not include an overall factor CF or CA.
double apfel::gammaK0 ()
 
double apfel::gammaK1 (int const &nf)
 αs2 term
 
double apfel::gammaK2 (int const &nf)
 αs3 term
 
double apfel::gammaK3 (int const &nf)
 αs4 term
 
double apfel::gammaK3gmq (int const &nf)