C:/Documents and Settings/Antonio/Desktop/PoS_Lattice2008/vertex_Oct_1st_2008.dvi

نویسنده

  • A. Mihara
چکیده

In the continuum regime the running coupling constant of QCD, obtained through the ghost-gluon vertex in maximally Abelian gauge (MAG), depends only on the renormalization factor of the diagonal gluon propagator, due to cancellation of the other renormalization factors. This fact is a clear manifestation of Abelian dominance. In this work we present a tree-level calculation (Feynman rules) of the ghost-gluon vertices in MAG on the lattice. These vertices can be useful for numerical and/or perturbative studies of the QCD running coupling and of the gluon propagator in the lattice formulation of QCD.

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تاریخ انتشار 2008