Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Properties of the residual nuclei in the firestreak model

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6859035
A two-stage firestreak model (TSFM) is used for the calculation of the following main characteristics of the residual nuclei created in the interaction of /sup 1/H, /sup 4/He, and /sup 12/C with the nuclei /sup 27/Al, /sup 108/Ag, and /sup 197/Au: the number of nucleons carried off from the target nucleus in the rapid interaction stage, the excitation energy of the residual nuclei, the longitudinal momentum, and the angular momentum. Good agreement of the TSFM results with the results of the intranuclear cascade model (taking into account sweeping) is obtained for the interactions of protons with nuclei in the energy range approx.0.25--10 GeV. In the case of the nucleus-nucleus interactions the calculation predicts a maximum in the energy dependence of the longitudinal momentum and of the excitation energy of the residual nuclei. The degree of agreement of the TSFM results with the experimental data on the excitation energy, longitudinal momentum of the residual nuclei, and anisotropy of the angular distribution of the emitted light fragments is analyzed. The shear viscosity coefficient of nuclear matter is calculated and found to be eta/sub s/ = 2.1 +- 0.3 MeV x fm/sup -2/ x c/sup -1/. The energy dependence of the yield of light fragments from the excited residual nuclei in the evaporation cascade is calculated. The sensitivity of the calculations to the parameters of the model is analyzed.
Research Organization:
V. G. Khlopin Radium Institute
OSTI ID:
6859035
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 48:1; ISSN SJNCA
Country of Publication:
United States
Language:
English