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arxiv: nucl-th/0107001 · v1 · submitted 2001-06-30 · ⚛️ nucl-th

The effect of finite-range interactions in classical transport theory

Sen Cheng , Scott Pratt , Peter Csizmadia , Yasushi Nara , Denes Molnar , Miklos Gyulassy , Stephen Vance , Bin Zhang This is my paper
classification ⚛️ nucl-th
keywords rangeeffectrelativisticaffectapproximatelyboltzmannbulkcharacteristic
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The effect of scattering with non-zero impact parameters between consituents in relativistic heavy ion collisions is investigated. In solving the relativistic Boltzmann equation, the characteristic range of the collision kernel is varied from approximately one fm to zero while leaving the mean-free path unchanged. Modifying this range is shown to significantly affect spectra and flow observables. The finite range is shown to provide effective viscosities, shear, bulk viscosity and heat conductivity, with the viscous coefficients being proportional to the square of the interaction range.

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    AMPT generates high elliptic flow with few-millibarn cross sections due to specific features in initial conditions, interactions, and partonic dynamics, identified via comparisons with the MPC model.