Freiburg 1999 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 31: Postersitzung / Theorie

HK 31.12: Poster

Wednesday, March 24, 1999, 10:15–12:00, Foyer

Comparison of the collision delay and displacements within the Bonn and Paris potentials — •K. Morawetz¹, P. Lipavskyý², V. Spička², and N. Kwong³ — ¹FB Physik, Universität Rostock, Universitätsplatz 3, D-18051 Rostock — ²Institute of Physics, Academy of Sciences, Cukrovarnická 10, 16200 Praha 6, Czech Republic — ³Physics Department, University of Arizona,Tucson,Arizona 85721

We calculate the nonlocal shifts required in the extended Boltzmann (BUU) equation for different realistic potentials. The nonlocal shifts are interpreted in terms of the kinetic scattering events. Since the nonlocal shifts are given by off-shell derivatives of the scattering T-matrix we are able to compare the slight off-shell behavior of the different potentials by this way. While the Bonn one-Boson-exchange (A-C) and Paris potentials yield very close results, the separable Paris potential is found to provide different values from the others.