Adiabatic quantum tunneling in heavy-ion sub-barrier fusion

被引：92
|
作者：
Hagino, K [1 ]
Takigawa, N [1 ]
Dasgupta, M [1 ]
Hinde, DJ [1 ]
Leigh, JR [1 ]
机构：
[1] AUSTRALIAN NATL UNIV,RES SCH PHYS SCI & ENGN,DEPT NUCL PHYS,CANBERRA,ACT 0200,AUSTRALIA
来源：
PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.79.2014
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The measured fusion barrier distributions for Ca-40 + Os-192, Pt-194 show significant features due to projectile excitation, while none are seen for O-16 + Sm-144. This conflict is reconciled using realistic coupled-channel calculations, which show that the higher excitation energy of the 3(-) state ill O-16 produces an adiabatic potential renormalization, without affecting the structure in the barrier distribution. This result indicates that adiabatic effects restrict, in a natural way, the states which influence the shape of a fusion barrier distribution.
引用
收藏
页码：2014 / 2017
页数：4
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