Detailed study of quark-antiquark flux tubes and flux tube recombination
  In this work we compute the color fields in the mediator plane between a static quark and a static antiquark using quenched lattice QCD. In special, we see the effect of the quark-antiquark distance on the flux tube. To obtain this results an improved multihit technique is developed and an extend smearing technique is used. Then, we also discuss the flux-tubes in a system composed of two quarks and two antiquarks. The ground and first excited states fields are studied for different dispositions of the system. 
Marco Cardoso, Pedro Bicudo, Nuno Cardoso
hep-lat hep-ph