Journalartikel

Jahr der Veröffentlichung: 1984

Seiten: 125-141

Zeitschrift: Nuclear Physics A: Nuclear and Hadronic Physics

Bandnummer: 427

Heftnummer: 1

ISSN: 0375-9474

DOI Link: https://doi.org/10.1016/0375-9474(84)90141-6

Verlag: Elsevier

Abstract: 

Decompositions into nearside and farside (NF) components are made of heavy-ion continuum cross sections calculated within the multi-step direct reaction (MSDR) method including one- and two-step processes. The approach is applied to the ¹⁶O + ⁴⁸Ti system at E_lab around 100 MeV and to the ¹⁶O + ²⁰⁸Pb system at E_lab = 192 MeV, and both cross sections and polarizations of the residual nucleus are considered. It is seen that at higher energy losses the two-step contributions become dominant, and that for scattering angles beyond the grazing angle these two-step contributions are mainly farsided. The relative importance of the NF components depends sensitively on the balance between Coulomb repulsion and nuclear attraction. The magnitude of the farside contribution also depends critically on the use of a polarization potential in the excited states. This potential is treated empirically. The decompositions are usefully interpreted in terms of a simple model for multi-step deflection functions. The results of the present quantum-mechanical approach to continuum heavy-ion reactions exhibit many of the features of classical calculations of deepinelastic processes.

Harvard-Zitierstil: Dean, D., Lenske, H., Mosel, U. and Wolter, H. (1984) Nearside-farside analyses of heavy-ion direct reactions to the continuum, Nuclear Physics A: Nuclear and Hadronic Physics, 427(1), pp. 125-141. https://doi.org/10.1016/0375-9474(84)90141-6

APA-Zitierstil: Dean, D., Lenske, H., Mosel, U., & Wolter, H. (1984). Nearside-farside analyses of heavy-ion direct reactions to the continuum. Nuclear Physics A: Nuclear and Hadronic Physics. 427(1), 125-141. https://doi.org/10.1016/0375-9474(84)90141-6