Lattice investigation of heavy meson interactions
  We report on a lattice investigation of heavy meson interactions and of tetraquark candidates with two very heavy quarks. These two quarks are treated in the static limit, while the other two are up, down, strange or charm quarks of finite mass. Various isospin, spin and parity quantum numbers are considered. 
Bj\"orn Wagenbach, Pedro Bicudo, Marc Wagner
hep-lat hep-ph