科研之友
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摘要
Scalar tetraquark states are studied within the diquark-antidiquark picture in a non-relativistic approach. We consider two types of confining potentials, a quadratic and a linear one, to which we also add spin-spin, isospin-isospin, and spin-isospin interactions. We calculate the masses of the scalar diquarks and of the ground state open and hidden charmed and bottom scalar tetraquarks. Our results indicate that the scalar resonances D-0* (2400) and D-s (2632) have a sizable tetraquark amount in their wave function, while, on the other hand, it turns out that the scalar states D-s0* (2317) and X (3915) should not be considered as being predominantly diquark-antidiquark bound states. We also investigate the masses of light scalar diquarks and tetraquarks, which are comparable to the measured masses of the light scalar mesons.
- 出版日期2016-5
