Latest documents http://publikationen.ub.uni-frankfurt.de/index/index/ Tue, 07 Nov 2006 10:17:27 +0200 Tue, 07 Nov 2006 10:17:27 +0200 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2423 Ionization, pair creation, and electron excitations in relativistic heavy-ion collisions are investigated in the framework of the coupled-channel formalism. Collisions between heavy projectiles and Pb82+ are considered for various bombarding energies in the region E=500 up to 2000 MeV/u. Useful symmetry relations for the matrix elements are derived and the influence of gauge transformations onto the coupled-channel equations is explored. Klaus Rumrich; Gerhard Soff; Walter Greiner article http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2423 Tue, 11 Jul 2006 10:17:27 +0200 http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2421 A method is presented to define unique continuum states for the two-center Dirac Hamiltonian. In the spherical limit these states become the familiar angular-momentum eigenstates of the radial Coulomb potential. The different states for a fixed total energy ‖E‖>m may be distinguished by considering the asymptotic spin-angular distribution of states with unique scattering phases. The first numerical solutions of the two-center Dirac equation for continuum states are presented. Karl-Heinz Wietschorke; Paul Schlüter; Gerhard Soff; Klaus Rumrich; Walter Greiner article http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2421 Fri, 07 Jul 2006 17:11:33 +0200