Speaker
Zahra Ghalenovi
(K)
Description
Heavy tetraquark states are studied within the diquark-antidiquark picture in the framework of a simple relativistic constituent quark model. We solve the Dirac equation of two-body systems by using an appropriate Ansatz. Considering hyperfine spin-isospin interaction, we predict the masses of the scalar diquarks and of the open and hidden charmed and bottom scalar tetraquarks. Our results indicate the scalar resonances D_0^* (2400) and D_s^ (2632) have a sizable tetraquark amount in their wave function, while it turns out the scalar states D_s0^* (2317) and X(3915) should not be considered as being predominately diquark-antidiquark bound states.
Primary author
Zahra Ghalenovi
(K)
