Coupled-channels analyses for large-angle quasi-elastic scattering in massive systems
- Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
We discuss in detail the coupled-channels approach for large-angle quasi-elastic scattering in massive systems, where many degrees of freedom may be involved in the reaction. We especially investigate the effects of single-, double-, and triple-phonon excitations on the quasi-elastic scattering for {sup 48}Ti, {sup 54}Cr, {sup 56}Fe, {sup 64}Ni, and {sup 70}Zn+{sup 208}Pb systems, for which the experimental cross sections have been measured recently. We show that the present coupled-channels calculations well account for the overall width of the experimental barrier distribution for these systems. In particular, it is shown that the calculations taking into account single-quadrupole phonon excitation in {sup 48}Ti and triple-octupole phonon excitations in {sup 208}Pb reasonably well reproduce the experimental quasi-elastic cross section and barrier distribution for the {sup 48}Ti+{sup 208}Pb reaction. However, {sup 54}Cr, {sup 56}Fe, {sup 64}Ni, and {sup 70}Zn+{sup 208}Pb systems seem to require the double-quadrupole phonon excitations in the projectiles to reproduce the experimental data.
- OSTI ID:
- 21189840
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 77, Issue 3; Other Information: DOI: 10.1103/PhysRevC.77.034604; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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