SYSTEMATIC STUDY OF SURVIVAL PROBABILITY OF EXCITED SUPERHEAVY NUCLEI

被引：0
作者：
Xia, C. J. [1 ]
Sun, B. X. [1 ]
Zhao, E. G. [2 ,3 ]
Zhou, S. G. [2 ,3 ]
机构：
[1] Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
[2] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
[3] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
来源：
NUCLEAR STRUCTURE IN CHINA 2010 | 2010年
关键词：
Survival probability; superheavy elements; island of stability; neutron emission; fission; MASSES; MODEL; DEFORMATIONS;
D O I：
暂无
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In this contribution we present some results of a study of the stability of excited superheavy nuclei (SHN) with 100 <= Z <= 134 against neutron emission and fission. We give a systematic investigation of the survival probability against fission in the ln-channel of these SHN. The neutron separation energies and shell correction energies are consistently taken from the finite range droplet model which predicts an island of stability of superheavy nuclei around Z = 115 and N = 179. It is found that this island of stability persists for excited superheavy nuclei in the sense that the calculated survival probabilities in the ln-channel of excited superheavy nuclei at the optimal excitation energy are maximized around Z = 115 and N = 179. This indicates that the survival probability in the ln-channel is mainly determined by the nuclear shell effects.
引用
收藏
页码：225 / 229
页数：5
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