Journal article

Publication year: 1976

Pages: 268-290

Journal: Nuclear Physics A: Nuclear and Hadronic Physics

Volume number: 264

Issue number: 2

ISSN: 0375-9474

DOI Link: https://doi.org/10.1016/0375-9474(76)90432-2

Publisher: Elsevier

Abstract: 

The frictional heating in heavy ion collisions has been investigated by solving the time-dependent many-body Schrödinger equation while maintaining at the same time a macroscopic description for the relative motion. For the microscopic part a two-center shell model with a time-dependent center distance and a BCS-type residual interaction have been used whereas the relative motion has been obtained from a classical equation. The difficulty connected with this approach to separate the total excitation energy into intrinsic and collective kinetic energy is discussed. A detailed comparison for the collision ¹⁶O+¹⁶O is made between the present results and those obtained in the Landau-Zener approximation. The results of both approaches stress the importance of reaching a critical distance for fusion. They also provide an understanding of both fusion and deeply inelastic processes and their angular momentum dependence. From the microscopic calculations estimates of macroscopic properties such as a radial friction coefficient, the nuclear viscosity constant and the imaginary part of the optical potential have been made.

Harvard Citation style: Glas, D. and Mosel, U. (1976) Microscopic description of nuclear friction in heavy ion collisions, Nuclear Physics A: Nuclear and Hadronic Physics, 264(2), pp. 268-290. https://doi.org/10.1016/0375-9474(76)90432-2

APA Citation style: Glas, D., & Mosel, U. (1976). Microscopic description of nuclear friction in heavy ion collisions. Nuclear Physics A: Nuclear and Hadronic Physics. 264(2), 268-290. https://doi.org/10.1016/0375-9474(76)90432-2