Abstract
The two-dimensional Fokker-Planck equation describing the phase-space evolution of the reduced density matrixf(r, v; t) with respect to radial distancer and radial velocityv is numerically solved for various cases of inelastic heavy-ion collisions. A comparison of the exact solution with the global moment approach (GMA) used so far by several authors clearly shows that the GMA is not applicable for deeply inelastic collisions. A local moment approach (LMA) is proposed as an approximate solution to the Fokker-Planck equation.
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The authors acknowledge valuable discussions with Prof. W. Nörenberg and Dr. H.L. Yadav. One of us (U.B.) is grateful to the MINERVA foundation for a stay in the Weizmann Institute where part of this work was done.
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Brosa, U., Cassing, W. Numerical studies on the phase-space evolution of relative motion of two heavy ions. Z Physik A 307, 167–174 (1982). https://doi.org/10.1007/BF01414832
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DOI: https://doi.org/10.1007/BF01414832