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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 2xF1. The relevant function is in Eq. (C4) of https://arxiv.org/pdf/hep-ph/9805233.pdf. More...
#include <massivecoefficientfunctionsunp_sl.h>
Public Member Functions | |
| Cm11ns (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 | _fact1 |
| double | _S1 |
| double | _V1 |
| double | _R1 |
Additional Inherited Members | |
Protected Attributes inherited from apfel::Expression | |
| double | _extvar |
| External kinematic variable. | |
| double const | _eta |
| Scaling parameter. | |
O(αs) non-singlet coefficient function for 2xF1. The relevant function is in Eq. (C4) of https://arxiv.org/pdf/hep-ph/9805233.pdf.