Masses of tetraquarks with two heavy quarks in the relativistic quark model

Understand

Masses of tetraquarks with two heavy quarks and open charm and bottom are calculated in the framework of the diquark-antidiquark picture in the relativistic quark model.

• All model parameters were regarded as fixed by previous considerations of various properties of mesons and baryons.
• The light quarks and diquarks are treated completely relativistically.
• The c quark is assumed to be heavy enough to make the diquark configurations dominating.