Zobrazeno 1 - 10
of 43
pro vyhledávání: '"El, Andrej"'
We investigate in a microscopical transport model the evolution of conical structures originating from the supersonic projectile moving through the matter of ultrarelativistic particles. Using different scenarios for the interaction between projectil
Externí odkaz:
http://arxiv.org/abs/1208.1039
Autor:
El, Andrej, Lauciello, Francesco, Wesp, Christian, Bouras, Ioannis, Xu, Zhe, Greiner, Carsten
We derive an analytic expression for the shear viscosity of an ultra-relativistic gas in presence of both elastic $2\to 2$ and inelastic $2\leftrightarrow 3$ processes with isotropic differential cross sections. The derivation is based on the entropy
Externí odkaz:
http://arxiv.org/abs/1207.5331
Autor:
Bouras, Ioannis, El, Andrej, Fochler, Oliver, Reining, Felix, Senzel, Florian, Uphoff, Jan, Wesp, Christian, Xu, Zhe, Greiner, Carsten
We discuss recent applications of the partonic pQCD based cascade model BAMPS with focus on heavy-ion phenomeneology in hard and soft momentum range. The nuclear modification factor as well as elliptic flow are calculated in BAMPS for RHIC end LHC en
Externí odkaz:
http://arxiv.org/abs/1207.0755
Second-order dissipative hydrodynamic equations for each component of a multi-component system are derived using the entropy principle. Comparison of the solutions with kinetic transport results demonstrates validity of the obtained equations. We dem
Externí odkaz:
http://arxiv.org/abs/1206.3465
Starting from a classical picture of shear viscosity we construct a stationary velocity gradient in a microscopic parton cascade. Employing the Navier-Stokes ansatz we extract the shear viscosity coefficient $\eta$. For elastic isotropic scatterings
Externí odkaz:
http://arxiv.org/abs/1106.4210
Second-order dissipative hydrodynamic equations for each component of a multi-component system are derived using the entropy principle. The shear viscosity of the whole system, appearing in the equation summed-up over all components, is related to th
Externí odkaz:
http://arxiv.org/abs/1103.4038
Publikováno v:
Nucl.Phys.A848:428-442,2010
Relativistic dissipative hydrodynamic equations are extended by taking into account particle number changing processes in a gluon system, which expands in one dimension boost-invariantly. Chemical equilibration is treated by a rate equation for the p
Externí odkaz:
http://arxiv.org/abs/1007.0705
Autor:
Bouras, Ioannis, Molnár, Etele, Niemi, Harri, Xu, Zhe, El, Andrej, Fochler, Oliver, Lauciello, Francesco, Greiner, Carsten, Rischke, Dirk H.
Publikováno v:
J.Phys.Conf.Ser.230:012045,2010
To investigate the formation and the propagation of relativistic shock waves in viscous gluon matter we solve the relativistic Riemann problem using a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock waves by vary
Externí odkaz:
http://arxiv.org/abs/1004.4615
Publikováno v:
J.Phys.Conf.Ser.230:012046,2010
We review the entropy based derivation of third-order hydrodynamic equations and compare their solutions in one-dimensional boost-invariant geometry with calculations by the partonic cascade BAMPS. We demonstrate that Grad's approximation, which unde
Externí odkaz:
http://arxiv.org/abs/1004.4452
Publikováno v:
J.Phys.G36:064035,2009
Employing the perturbative QCD inspired parton cascade, we investigate kinetic and chemical equilibration of the partonic matter created in central heavy ion collisions at RHIC and LHC energies. Two types of initial conditions are chosen. One is gene
Externí odkaz:
http://arxiv.org/abs/0812.3839