Abstract
The most probable effective values, , for multinucleon transfer reactions have been systematically studied on -shell nuclei and Zr-Mo isotopes induced by and , in the energy range between 60 and 100 MeV. As regards the "quasielastic" part of the bump in the energy spectrum, the dependence of on the incident and outgoing channel variables, i.e., , , , , and , the number of transferred nucleons, has been extensively investigated. The present data, together with those obtained at higher energies by the Dubna group, show systematic behaviors of (i) for a given and , changes little with , (ii) at a given , of () is nearly the same for adjacent and is not sensitive to their individual nuclear structure, and (iii) the linear relation holds for , whereas the linearity breaks down for larger . The relation MeV holds for a wide range of reactions. The ratio of the most probable effective velocity to the incident velocity at the transfer region decreases from about unity to 0.4 - 0.5 as increases. The differences in reaction mechanisms for smaller and larger have been discussed.
NUCLEAR REACTIONS , ; MeV, ; (; , ), MeV, ; , , MeV, , ; , , MeV, ; measured energy spectra of and optimum values.
- Received 15 April 1976
DOI:https://doi.org/10.1103/PhysRevC.14.1458
©1976 American Physical Society