Flux Tubes of Two- and Three-Quark System in Full QCD

Abstract We study the abelian color flux of two- and three-quark systems in the maximally abelian gauge in lattice QCD with dynamical fermions. We find that the abelian flux tube formed between quark and antiquark is very much the same as in quenched QCD up to quark separations of R ∼ 2fm. The profile of the color electric field in three-quark system suggests Y ansatz, which might be interpreted as the result of the vacuum pressure in the confined phase. In order to clarify the flux structure, we investigate the color electric field of the three-quark system splitting the abelian gauge field into the monopole and photon parts.