XIII International Workshop on Hadron Physics - XIII Hadron Physics

Chiral symmetry breaking with unquenched lattice ingredients

Not scheduled

3h 30m

Hotel do Bosque

Poster Strong and electroweak interactions in the standard model

Speaker

Mr Jeyner Castro Cardona (UNICAMP)

Description

We study in detail the nonperturbative modifications caused to the dynamical quark mass by the inclusion of a small number of quark families in the gluon propagator and ghost dressing function obtained from the unquenched lattice simulations. We solve the quark gap equation using a non-Abelian Ansatz for the quark-gluon vertex which displays a crucial dependence on the ghost dressing function and the quark-ghost scattering amplitude. As a result, we obtain, in the chiral limit, dynamical quark masses of the order of 300 MeV for a different numbers of quark flavors and we find a good agreement with lattice data availaible in the literature.