TY - JOUR A1 - Lichtner, Peter A1 - Drechsel, Dieter A1 - Maruhn, Joachim A1 - Greiner, Walter T1 - Variable masses in fission and heavy-ion collisions T2 - Physical review letters N2 - With the use of the cranking formula, the coordinate-dependent mass parameters of the kinetic-energy operator in fission processes and heavy-ion collisions are calculated in the two-center oscillator model. It is shown that the reduced mass and also the classical moment of inertia are obtained for large separations of the fragments. For small separations, however, the mass parameter for the motion of the centers of mass of the fragments is larger than the reduced mass by an order of magnitude. Y1 - 2006 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2525 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-28731 VL - 28 IS - 13 SP - 829 EP - 832 ER -