Nuclear profile dependence of elliptic flow from a parton cascade
نویسندگان
چکیده
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...
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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...
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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...
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Event generators based on perturbative QCD (pQCD) are proposed such as HIJING (Heavy Ion Jet Interaction Generator)[1], VNI (Vincent Le Cucurullo Con Giginello)[2], in order to describe ultra-relativistic heavy ion collisions, especially, at collider energies (RHIC/LHC). Although both models reproduce many pp and p̄p data, there are large discrepancies in AA collisions between these two models, ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2004
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2003.11.051