Lagrangian["oqu"]
gives the unpolarized OPE quark
operator.
Lagrangian["oqp"]
gives the polarized quark OPE
operator.
Lagrangian["ogu"]
gives the unpolarized gluon OPE
operator.
Lagrangian["ogp"]
gives the polarized gluon OPE
operator.
Lagrangian["ogd"]
gives the sigma-term part of the QCD
Lagrangian.
Lagrangian["QCD"]
gives the gluon self interaction part
of the QCD Lagrangian.
["QCD"] Lagrangian
-\frac{1}{4} F_{\text{FCGV}(\alpha )\text{FCGV}(\beta )}^{\text{FCGV}(\text{a})}.F_{\text{FCGV}(\alpha )\text{FCGV}(\beta )}^{\text{FCGV}(\text{a})}
Twist-2 operator product expansion operators
["ogu"] Lagrangian
\frac{1}{2} i^{m-1} F_{\text{FCGV}(\alpha )\Delta }^{\text{FCGV}(\text{a})}.\left(D_{\Delta }^{\text{FCGV}(\text{a})\text{FCGV}(\text{b})}\right){}^{m-2}.F_{\text{FCGV}(\alpha )\Delta }^{\text{FCGV}(\text{b})}
["ogp"] Lagrangian
\frac{1}{2} i^m \bar{\epsilon }^{\text{FCGV}(\alpha )\text{FCGV}(\beta )\text{FCGV}(\gamma )\Delta }.F_{\text{FCGV}(\beta )\text{FCGV}(\gamma )}^{\text{FCGV}(\text{a})}.\left(D_{\Delta }^{\text{FCGV}(\text{a})\text{FCGV}(\text{b})}\right){}^{m-2}.F_{\text{FCGV}(\alpha )\Delta }^{\text{FCGV}(\text{b})}
["oqu"] Lagrangian
i^m \bar{\psi }.\left(\bar{\gamma }\cdot \Delta \right).D_{\Delta }{}^{m-1}.\psi
["oqp"] Lagrangian
i^m \bar{\psi }.\bar{\gamma }^5.\left(\bar{\gamma }\cdot \Delta \right).D_{\Delta }{}^{m-1}.\psi