Static-static-light-light tetraquarks in lattice QCD

Understand

I report on a lattice computation of the energy of a system of two light quarks and two static antiquarks as a function of the separation of the static antiquarks.

• In terms of hadrons such a system corresponds to a pair of B mesons and its energy to the hadronic potential.
• I present selected results for different isospin, spin and parity combinations of the individual B mesons mainly focusing on those channels relevant to determine, whether two B mesons may form a bound tetraquark state.