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

页码：2014 / 2017

页数：4

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