APFEL 4.8.0
A PDF evolution library in C++
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Public Member Functions | Private Member Functions | Private Attributes | List of all members

O(αs) non-singlet coefficient function for F2. The relevant function is in Eq. (C4) of https://arxiv.org/pdf/hep-ph/9805233.pdf. More...

#include <massivecoefficientfunctionsunp_sl.h>

Inheritance diagram for apfel::Cm21ns:
apfel::Expression

Public Member Functions

 Cm21ns (double const &m1, double const &m2, double const &Q, double const &Splus, double const &Sminus)
 
double Regular (double const &x) const
 Virtual regular term.
 
double Singular (double const &x) const
 Virtual singular term.
 
double Local (double const &x) const
 Virtual local term.
 
- Public Member Functions inherited from apfel::Expression
virtual ~Expression ()=default
 
void SetExternalVariable (double const &extvar) const
 Function that sets the value of a possible external variable.
 
double eta () const
 Function that returns the value of the scaling parameter eta.
 
 Expression (double const &eta=1)
 The "Expression" constructor.
 
virtual double LocalPP (double const &) const
 Virtual local term for principal-valued integrals a la ERBL with singularity at x = 1, i.e. corresponding to the ++-prescription.
 
virtual double SingularPV (double const &) const
 Virtual singular term for principal-valued integrals in the DGLAP region (i.e. with pole in x in the interval (0,1)).
 
virtual double LocalPV (double const &) const
 Virtual local term for principal-valued integrals a la DGLAP with singularity in the interval (0,1).
 

Private Member Functions

double _R (double const &x) const
 

Private Attributes

double const _m1
 
double const _m2
 
double const _Splus
 
double const _Sminus
 
double const _m12
 
double const _m22
 
double const _Q2
 
double const _Del
 
double const _Del2
 
double const _Spp
 
double const _Spm
 
double const _Smp
 
double const _fact2
 
double _S2
 
double _V2
 
double _R1
 

Additional Inherited Members

- Protected Attributes inherited from apfel::Expression
double _extvar
 External kinematic variable.
 
double const _eta
 Scaling parameter.
 

Detailed Description

O(αs) non-singlet coefficient function for F2. The relevant function is in Eq. (C4) of https://arxiv.org/pdf/hep-ph/9805233.pdf.


The documentation for this class was generated from the following file: