Dibaryon systems in the quark mass density- and temperature-dependent model

Abstract

Using the quark mass density-and temperature-dependent model, we have studied the properties of the dibaryon systems. The binding energy, radius and mean lifetime of (ΩΩ) 0 + and (ΩΞ − ) are given. We find the dibaryons (ΩΩ) 0 + , (ΩΞ − ), (ΩΞ 0 ) are metastable at zero temperature, but the strong decay channel for (ΩΩ) 0 + opens when temperature arrives at 129.3 MeV. It is shown that our results are in good agreement with those given by the chiral S(3) quark model.

Slowly Rotating Proto Strange Stars in Quark Mass Density- And Temperature-Dependent Model

“…After getting the thermodynamic potential Z, we can derive the energy density ρ and the pressure p. The results are [15][17]- [20] …”

Improved density-dependent quark mass model with quark-σ meson and quark-ω meson couplings

“…and when T T C , m q = 0, m s,s = m s0 , This quark mass density-and temperature-dependent model (QMDTD) has been employed to discuss the properties of strange quark matter [14,16], the dibaryon system [19], and the strange quark star [20,21]. Instead of the correspondence of MIT bag to the QMDD model, we have proved that QMDTD model mimicks the Freidberg-Lee (FL) soliton bag model [22,23].…”

Thermodynamics with density and temperature dependent particle masses and properties of bulk strange quark matter and strangelets

“…This extension of the model has soon been applied to the study of strangelets [41,42,43], dibaryons [44], and proto strange stars [45], etc..…”