QCDHelper.h File Reference

Core QCD utilities for α_s running and quark mass evolution. More...

#include <array>
#include <string>
#include "Parameters.h"
#include "Math.h"
#include "DependentBlockManager.h"

Include dependency graph for QCDHelper.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	QCDConstants
	Collection of QCD-specific constants and coefficients. More...
class	QCDHelper
	Static utility class for QCD running and derived QCD block construction. More...

Detailed Description

Core QCD utilities for α_s running and quark mass evolution.

This header declares:

• QCDConstants: a collection of static QCD coefficients (Casimirs, beta and gamma function coefficients).
• QCDHelper: the numerical engine computing:
  • the running strong coupling α_s(μ),
  • running MS-bar quark masses,
  • various QCD scales (Λ_QCD for different nf),
  • pole and threshold-related masses.

QCDHelper also defines and populates the derived "QCD" block via a DependentBlock using DependentBlockManager and SM parameters.

Definition in file QCDHelper.h.