Speaker
Elena Savchenko
(Federal Research Center "Computer Science and Control", Russian Academy of Sciences (FRC CSC RAS); Faculty of Physics, Lomonosov Moscow State University (MSU))
Description
Tetraquarks with two heavy flavors (charm $c$, bottom $b$) are studied within the relativistic quark model, based on the quasipotential approach and QCD. Tetraquark is treated as a diquark--antidiquark bound state. The interaction potential in the relativistic quasipotential equation contains all spin--dependent and spin--independent relativistic contributions. Finite size of the diquark is taken into account. The calculated masses of such tetraquarks are compared with the strong fall--apart decay thresholds into a pair of mesons. Results are compared with the available experimental data. The states that could be observed as narrow resonances in other decay modes are determined.
Primary author
Elena Savchenko
(Federal Research Center "Computer Science and Control", Russian Academy of Sciences (FRC CSC RAS); Faculty of Physics, Lomonosov Moscow State University (MSU))
Co-author
Dr
Vladimir Galkin
(Federal Research Center "Computer Science and Control", Russian Academy of Sciences)
