Abstract
The angular momentum dissipation and related orientation effects are analysed in linear response theory. In a dynamical approach a two-dimensional classical model, modified for an improved treatment of the angular momentum transfer, is used to calculate the first moments of the collective variables of the relative motion. The mean value of the total angular momentum dissipated as well as the alignment and the polarisation of the fragments are calculated as functions of the Q value, scattering angle and mass asymmetry of the reaction products utilising an approximated distribution function in a reduced phase space. Numerical results are compared with experimental data for the reactions 86Kr(515 MeV +166Er, 86Kr(730 MeV)+238U and 14N(90 MeV, 125 MeV, 200 MeV)+100Mo.
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