Parts | Days | Selection | Search | Downloads | Help
HK: Hadronen und Kerne
HK 65: Heavy Ion Reactions VIII, Ultrarelativistic Energies
HK 65.9: Group Report
Thursday, March 19, 1998, 16:30–17:00, F
The equation of state of the quark-gluon plasma — •A. Peshier1, B. Kämpfer1, O.P. Pavlenko2, and G. Soff3 — 1Research Center Rossendorf Inc., PF 510119, 01314 Dresden — 2Institute for Theoretical Physics, 252143 Kiev - 143, Ukraine — 3Institut für Theoretische Physik, Technische Universität Dresden, 01062 Dresden
An effective quasi-particle description [1] of strongly interacting
systems is shown to reproduce the thermodynamical properties of both
the pure SU(3) plasma [2] as well as plasmas containing several light
flavors of quarks [3].
The model is extended to non-zero quark chemical potential which so
far was not implemented in lattice calculations.
This gives an estimate of the equation of state p(T,µ) of deconfined
matter produced in the course of ultrarelativistic heavy-ion collisions.
The relation of the model [1] to exact QCD thermodynamics is discussed.
[1] A. Peshier et al., Phys. Rev. D54 (1996) 2399
[2] G. Boyd et al., Nucl. Phys. B469 (1996) 419
[3] S. Gottlieb et al.,
Phys. Rev. D55 (1997) 6852,
[2]
C. Bernard et al.,
Phys. Rev. D55 (1997) 6861,
[2]
J. Engels et al.,
Phys. Lett. B396 (1997) 210