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Phys. Rev. C 65, 024901 (2002) [12 pages]

Effect of finite-range interactions in classical transport theory

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Sen Cheng and Scott Pratt
Department of Physics and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan, 48824

Peter Csizmadia
RMKI Research Institute for Particle and Nuclear Physics, P.O. Box 49, Budapest 1525, Hungary

Yasushi Nara
Riken BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973

Dénes Molnár and Miklos Gyulassy
Department of Physics, Columbia University, 538 120th Street, New York, New York 10027

Stephen E. Vance
Physics Department, Brookhaven National Laboratory, Upton, New York 11973

Bin Zhang
Department of Chemistry and Physics, Arkansas State University, P.O. Box 419, State University, Arkansas 72467-0419

Received 30 June 2001; published 9 January 2002

The effect of scattering with nonzero impact parameters between constituents in relativistic heavy-ion collisions is investigated. In solving the relativistic Boltzmann equation, the characteristic range of the collision kernel is varied from approximately 1.0 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.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.65.024901
DOI: 10.1103/PhysRevC.65.024901
PACS: 24.10.Jv, 51.10.+y, 66.20.+d, 05.60.Cd

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