ENTRANCE-CHANNEL DEPENDENCE OF FISSION-FRAGMENT ANISOTROPIES - A DIRECT EXPERIMENTAL SIGNATURE OF FISSION BEFORE EQUILIBRATION

被引：118

作者：

RAMAMURTHY, VS ^{[1
]}

KAPOOR, SS ^{[1
]}

CHOUDHURY, RK ^{[1
]}

SAXENA, A ^{[1
]}

NADKARNI, DM ^{[1
]}

MOHANTY, AK ^{[1
]}

NAYAK, BK ^{[1
]}

SASTRY, SV ^{[1
]}

KAILAS, S ^{[1
]}

CHATTERJEE, A ^{[1
]}

SINGH, P ^{[1
]}

NAVIN, A ^{[1
]}

机构：

[1] BHABHA ATOM RES CTR,DIV NUCL PHYS,BOMBAY 400085,INDIA

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.65.25

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Fission-fragment angular distributions in reactions of B10, C12, O16+232Th and Np237, and F19+237Np have been measured. While the measured anisotropies in B- and C-induced fission are found to be in agreement with the predictions of the standard Halpern-Strutinsky theory, they are anomalously large in the case of O- and F-induced fission. Such a discontinuous behavior in angular anisotropy with respect to the entrance-channel mass-to-charge asymmetry provides an experimental verification of the predictions of the preequilibrium fission model proposed earlier to explain the anomalous fragment angular distributions. © 1990 The American Physical Society.

引用

页码：25 / 28

页数：4

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