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Singularities of ultra-relativistic expanding quark-gluon plasma within Quark-gluon transport theory | | A. Ya. Berdnikov
; Ya. A. Berdnikov
; A. N. Ivanov
; V. A. Ivanova
; V. F. Kosmach
; V. M. Samsonov
; N. I. Troitskaya
; | | Date: |
10 Dec 2001 | | Subject: | nucl-th | | Abstract: | We follow Quark-gluon transport theory and analyse singularities of the ultra-relativistic and spherical expanding quark-gluon plasma. Within the linearized QCD oscillations and instabilities of the ultra-relativistic and spherical symmetric expanding quark-gluon plasma near global thermodynamical equilibrium are investigated in dependence on a chemical potential mu(T) of non-strange light quarks and antiquarks, a strange quark mass m_s, a temperature T and a hydrodynamical velocity $u$. We calculate the chromoelectric permeability tensor for the quark-gluon plasma at rest and ultra-relativistic moving. We show that the contribution of chemical potential of light quarks and antiquarks can be neglected to the chromoelectric permeability. We show that the account for the non-zero mass of strange quarks and antiquarks diminishes the value of the plasma frequency. We show that the plasma frequency of the ultra-relativistic and spherical symmetric expanding quark-gluon plasma is enhanced by a Lorentz factor compared with the plasma frequency of the quark-gluon plasma at rest. We find that the ultra-relativistic and spherical symmetric expanding quark-gluon plasma behaves like a collisionless thermalized plasma. | | Source: | arXiv, nucl-th/0112024 | | Services: | Forum | Review | PDF | Favorites | |
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