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論文

Coupled-channels analyses for large-angle quasi-elastic scattering in massive systems

Zamrun, F. M.*; 萩野 浩一*; 光岡 真一; 池添 博

Physical Review C, 77(3), p.034604_1 - 034604_11, 2008/03

 被引用回数:25 パーセンタイル:80.75(Physics, Nuclear)

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 $$^{48}$$Ti, $$^{54}$$Cr, $$^{56}$$Fe, $$^{64}$$Ni, and $$^{70}$$Zn+$$^{208}$$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 the double-quadrupole phonon excitations in the projectiles and triple-octupole phonon excitations in the target reasonably well reproduce the experimental quasi-elastic cross section and barrier distribution.

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