2007/12/03 by Muhammad Zamrun Firihu, Muhammad Zamrun F., K. Hagino +2
Earth and Planetary Sciences · Physics and Astronomy · #High-pressure geophysics and materials #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.77.034604
published as Phys.Rev.C77:034604,2008 · 11 pages, 6 figures
arxiv created 2007/12/03 · openalex publication_date 2008/03/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 48Ti, 54Cr, 56Fe, 64Ni, and 70Zn+208Pb 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 48Ti and triple-octupole phonon excitations in 208Pb reasonably well reproduce the experimental quasi-elastic cross section and barrier distribution for the 48Ti+208Pb reaction. However, 54Cr, 56Fe, 64Ni, and 70Zn+208Pb systems seem to require the double-quadrupole phonon excitations in the projectiles to reproduce the experimental data.