منابع مشابه
Nuclear profile dependence of elliptic flow from a parton cascade
The transverse profile dependence of elliptic flow is studied in a parton cascade model. We demonstrate that the impact parameter dependence of elliptic flow depends sensitively on the transverse profile of initial particles, however, if elliptic flow is plotted as a function of the relative multiplicity, the nuclear profile dependence disappears. The insensitivity was found previously in a hyd...
متن کاملElliptic Flow from an On-shell Parton Cascade
Differential elliptic flow out to p⊥ ∼ 5 GeV/c is calculated using the MPC elastic parton cascade model for Au+Au at Ecm ∼ 130 A GeV. The results are compared to recent STAR/RHIC elliptic flow data. An elliptic flow pattern comparable to the data seems to require initial parton densities at least twice higher than the predicted by the HIJING model. Elliptic flow is also shown to be sensitive to...
متن کاملDifferential elliptic flow prediction at the LHC from parton transport
Introduction. General physics arguments and calculations for a class of conformal field theories suggest [1, 2] that quantum effects impose a lower bound on transport coefficients. For example, the shear viscosity to entropy density ratio is above a small value η/s ∼ 0.1 (“most perfect fluid” limit). Dissipative effects can therefore never vanish in a finite, expanding system. On the other hand...
متن کاملRecent results from parton cascade/microscopic transport
Parton cascade is a microscopic transport approach for the study of the space-time evolution of the Quark-Gluon Plasma produced in relativistic heavy ion collisions and its experimental manifestations. In the following, parton cascade calculations on elliptic flow and thermalization will be discussed. Dynamical evolution is shown to be important for the production of elliptic flow including the...
متن کاملParton cascade and coalescence
Recent data from Au + Au reactions at √ sNN = 130 and 200 GeV from RHIC show striking difference between baryons and mesons in the intermediate transverse momentum region 2 < p⊥ < 5 GeV. First, elliptic flow scales with constituent quark number[ 1, 2, 3, 4, 5]. The flow per constituent quark as a function of transverse momentum per constituent quark, v 2 (pT/n)/n (n = 2 for mesons, 3 for baryon...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1999
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(99)00456-6