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APFEL 4.8.0
A PDF evolution library in C++
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O(αs) non-singlet coefficient function for F3. The relevant function is in Eq. (C4) of https://arxiv.org/pdf/hep-ph/9805233.pdf. More...
#include <massivecoefficientfunctionsunp_sl.h>
Public Member Functions | |
Cm31ns (double const &m1, double const &m2, double const &Q, double const &Rplus, double const &Rminus) | |
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. | |
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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 | _Rplus |
double const | _Rminus |
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 | _fact3 |
double | _S3 |
double | _V3 |
double | _R1 |
Additional Inherited Members | |
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double | _extvar |
External kinematic variable. | |
double const | _eta |
Scaling parameter. | |
O(αs) non-singlet coefficient function for F3. The relevant function is in Eq. (C4) of https://arxiv.org/pdf/hep-ph/9805233.pdf.