Tetraquark state and multibody interaction

Systematic study ofZc+family from a multiquark color flux-tube model

“…The details of the color flux-tube model basing on traditional quark models and lattice QCD picture can be found in our previous work [18], the prominent characteristics of the model are just presented here. The model Hamiltonian for the state [cu][cd] is given as follows,…”

InterpretingZc(3900)andZc(4025Deng1, Ping2, Huang3 et al. 2014Phys. Rev. DSelf Cite751700View full textAdd to dashboardCite

“…In the model, the color confinement used is not the sum of two-body interaction proportional to a color charge λ c i · λ c j but a multibody one, which has been successfully applied to study multiquark systems [14][15][16][17][18]. The study attempts not only to describe the reported charged states and to enrich the list of the possible charged states, but also to provide a new insight to charged states and to reveal the underlying mechanism behind these novel phenomena.…”

Baryonia and near-threshold enhancements

“…Compared with the early baryonia calculations in the traditional quark models [28,29], where no non-strange bound state was obtained, the multibody confinement interaction used in our model can globally give more attraction than the additive two-body one proportional to the color factor in the traditional quark models. Furthermore, the anti-confinement among a color symmetrical quark or antiquark pair does not shown up in the multibody confinement potential, because no color charge appeared [15][16][17]. The similar string model with a multibody confinement potential was applied to study the stabilities of tetraquark, pentaquark and hexaquark states, and it was suggested that many compact mul- The binding energies of the ground states of hexaquark systems q 3q3 with quantum numbers J P C , (unit: MeV), where "..." means that the corresponding state does not exist.…”