FEYN CALC SYMBOL

Lagrangian


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.

ExamplesExamplesopen allclose all

Basic Examples  (1)Basic Examples  (1)

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Twist-2 operator product expansion operators
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