[en] In this article, a survey is given of the research program of the Kernfysisch Versneller Instituut (KVI) in Groningen. There is a discussion of (1) the study of giant resonances by means of inelastic scattering, (2) the use of pick-up reactions in investigating deeply bound whole states and (3) collective states in transitional nuclei by means of the (α,xnγ) reaction

[en] To investigate the mechanism of asymmetric nucleus-nucleus reactions from the Coulomb barrier to intermediate energies the ¹⁴N + ¹⁵⁹Tb reaction was studied at five bombarding energies between 8 and 23 MeV/u via particle-particle correlations (at selected energies) and particle KX-ray coincidences to identify the specific reaction channels. With the KX-ray method partial cross sections for projectile-like fragments (PLF) as a function of the atomic number (Z/sub res/) of the residual nucleus can be determined. The charge balance yields the ''missing charge'' dZ = Z/sub proj/ + Z/sub targ/ - Z/sub PLF/ - Z/sub TLF/ that indicates whether, in addition to the PLF, other charged particles are emitted. A large fraction of the inclusive cross sections is found to originate from such channels with two or more fragments in the exit channel, and this fraction increases as the PLF is further removed in mass from the incident projectile, and with increasing bombarding energy. From the particle-particle correlation studies it is found that sequential decays of PLF's are dominant. ''Non-sequential'' processes, if present, are associated with inelastic reactions involving excitations of both projectile and target. The bulk of the large alpha-particle cross section at small angles is found to be associated with channels in which, in addition to the alpha particle, only nucleons and other alpha particles are emitted. From γ-ray multiplicity measurements and from the broad distribution of the strength with Z/sub res/ it is concluded that these alpha particles originate from inelastic (damped) processes. 27 refs., 10 figs

[en] The planned West-European radioactive ion beam (RIB) facilities based on the ISOL-type two-accelerator method is discussed in conjunction with the report of the Nupecc Study Group on radioactive beams. Special attention is paid to the different aspects entering into an ISOL-type facility. The relative merits of the proposed facilities are discussed and the main conclusions of the Nupecc Study Group are presented. (orig./HP)

No abstract available

No abstract available

[en] A phenomenological approach to heavy ion scattering is given with an emphasis on deviations from strong absorption predictions. Parametrized phase shift models are compared and related to scattering data. Theoretical comments are made on heavy ion potentials. Elastic (resonant) transfer calculations are presented using DWBA, the Coulomb T Matrix, and the Two State Approximation. Intermediate structure in heavy ion reactions is discussed in terms of quasimolecular states. (15 figures, 124 references) (U.S.)

[en] The factorisation description of the nuclear structure amplitude has been applied to three- and four-nucleon pick-up reactions. In addition (d,⁶Li) data on some sd-shell nuclei are compared with shell model and SU(3) model predictions. (Auth.)

[en] In this summary talk for the symposium the author discusses selected topics of particular interest to him. Among the topics discussed are sub- and near-barrier fusion, entrance channel effects, limitations to fusion and folding angles. Specific papers given at the conference are referenced and discussed

[en] Some recent results on the production of hard photons in intermediate energy heavy-ion reactions are reported. The topics covered are the use of hard photons as a means to study the energy dissipation mechanism in peripheral heavy ion reactions and the observation of second chance or thermal hard photons

[en] The Symposium on Heavy-Ion Scattering was held March 25-26, 1971, at Argonne National Laboratory. The Symposium was organized by the Physics Division of the Laboratory and was sponsored by the Laboratory under the auspices of the U.S. Atomic Energy Commission. The scattering of heavy ions has received much renewed interest recently. Extensive work, both experimental and theoretical, has led to new insights into the heavy-ion-nucleus interaction but also to conclusions sometimes contradictory to each other and to other findings. It was therefore felt worthwhile to bring together all those actively working int the field of heavy ions scattering in an informal and not too large meeting, in which much time was given to discussions. The emphasis of this rather specialized meeting, which was restricted to elastic and inelastic heavy-ion scattering (Coulomb excitation excluded), was on the mechanism of the scattering process and on the nucleus-nucleus interaction. The meeting was attended by 100 physicists, with 8 from abroad. A list of the participants is given at the end of the proceeding. The Proceeding contain only the invited and contributed papers which have been directly reproduced from the copies submitted by the authors. For practical reasons it was not feasible to include the discussions.