Quasielastic Barrier Distributions : Role of Particle Transfer Channels

The barrier distributions extracted from quasielastic excitation functions are analyzed in terms of a semiclassical model that incorporates both the excitation of the surface degrees of freedom and the exchange of neutrons and protons. It is shown that quasielastic cross sections receive sizable contributions from transfer reactions in all measured energy range

Evidence for energy dependent interaction in one-particle transfer reactions between heavy ions

Abstract The recently measured proton stripping cross sections in the collision 16 O+ 208 Pb at 793 MeV [M.C. Mermaz et al., Z. Phys. A 326 (1987) 353] is analyzed in the semiclassical approximation. Taking into account an energy dependence in the interaction, consistent with the proton scattering data, an accurate description of the absolute cross sections is obtained

Coupled channels analysis of the 16O + 28Si reaction near the Coulomb barrier

Abstract Good agreement with all the available experimental data on 16 O + 28 Si scattering and fusion in the energy range of E = 21–38 MeV was obtained with a deformed optical potential consistent with calculations based on nuclear structure information

Simple estimates of excitation energy sharing between heavy and light fragments in heavy-ion reactions

Qualitative arguments are used to estiamte the ratio of excitation energies between heavy and light fragments for asymmetric heavy-ion collisions. The value of this quantity is linked to the relative role played by inelastic and transfer degrees of freedom and thereby to an approximate function of the total kinetic energy loss. A numerical analysis that confirms the trends anticipated by the simple arguments is performed for the reactions 56Fe+ 238U and 86Kr+ 208Pb at bombarding energies in the laboratory of 476 and 1565 MeV, respectivelyComisión Asesora de Investigación Científica y Técnica 2868-8

Transfer reactions in the sudden limit of the pairing-rotor model

The transfer of multiple pairs of particles in heavy-ion reactions is studied in the sudden limit of the macroscopic pairing-rotor model

Realistic simulations of the AGATA Demonstrator+PRISMA spectrometer

Abstract The performance of the AGATA Demonstrator Array coupled to the PRISMA magnetic spectrometer has been evaluated consistently by using detailed Monte Carlo simulations of the two devices. Results for the multi-nucleon transfer reaction 48Ca+208Pb at 310 MeV beam energy are presented and discussed in this study. The present results suggest that the Doppler correction capabilities of the AGATA+PRISMA setup will be very close to the intrinsic energy resolution of the germanium detectors

Multinucleon transfer processes in heavy-ion reactions

The main advances in the field of multinucleon transfer reactions at energies close to the Coulomb barrier are reviewed. After a short presentation of the experimental techniques and some gleams from the theory the new data are presented. The possibilities offered by the coupling of large γ-array detectors with tracking spectrometers are discussed