Soliton solutions of the improved quark mass density-dependent model at finite temperature

Abstract

The improved quark mass density-dependent model (IQMDD) based on soliton bag model is studied at finite temperature. Appling the finite temperature field theory, the effective potential of the IQMDD model and the bag constant $B(T)$ have been calculated at different temperatures. It is shown that there is a critical temperature $T_C\simeq 110\mathrm{MeV}$. We also calculate the soliton solutions of the IQMDD model at finite tmperature. It turns out that when $T<T_C$, there is a bag constant $B(T)$ and the soliton solutions are stable. However, when $T>T_C$ the bag constant $B(T)=0$ and there is no soliton solution, therefore, the confinement of quarks are removed quickly.

arXiv comment10 pages, 9 figures; Version to appear in Physical Review C

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• Chiral soliton model at finite temperature and density
• Quark deconfinement phase transition for improved quark mass density-dependent model
• Nuclear matter and neutron matter for improved quark mass density- dependent model with $\rho$ mesons
• Nontopological Soliton in the Polyakov Quark Meson Model
• Modification of nucleon properties in nuclear matter and finite nuclei
• To understand sQGP through non-topological FL model
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• Quark deconfinement phase transition in nuclear matter for improved quark mass density-dependent model
• Medium modifications of baryon properties in nuclear matter and hypernuclei
• Expanding the thermodynamical potential and the analysis of the possible phase diagram of deconfinement in FL model