ar X iv : h ep - l at / 0 40 80 21 v 1 1 4 A ug 2 00 4 Numerical Study of the Ghost - Ghost - Gluon Vertex on the Lattice
نویسندگان
چکیده
It is well known that, in Landau gauge, the renormalization function of the ghost-ghost-gluon vertex Z 1 (p 2) is finite and constant, at least to all orders of perturbation theory. On the other hand, a direct non-perturbative verification of this result using numerical simulations of lattice QCD is still missing. Here we present a preliminary numerical study of the ghost-ghost-gluon vertex and of its corresponding renormalization function using Monte Carlo simulations in SU(2) lattice Landau gauge. Data were obtained in 4 dimensions for lattice couplings β = 2.2, 2.3, 2.4 and lattice sides N = 4, 8, 16.
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