Comparison between hot nuclei temperature values deduced by two methods in 40Ar+159Tb and natAg reactions at 30MeV/u

被引:0
|
作者
Dai, GX [1 ]
He, ZY [1 ]
Fu, YB [1 ]
Duan, LM [1 ]
Li, ZY [1 ]
Zhang, BG [1 ]
Liu, GX [1 ]
Wu, HY [1 ]
机构
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
关键词
hot nucleus; nuclear temperature by the slope; nuclear temperature by the double isotopes ratio; limiting temperature; nuclear coulomb instability;
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
The temperature of hot nuclei was simultaneously deduced with double isotope ratios and with slope method at angle of 110 degrees in Ar-40+ Tb-159 and Ag-nat reactions at 30 MeV/u. The values of isotopic temperature for different ratios, such as H-1,H-2/He-3,He-4, H-2,H-3/He-3,He-4 and Li-6,Li-7/He-3,He-4 were ail the same, i.e. 4.6 MeV. The slope temperature values were different for various particles or complex fragment. The slope temperature for alpha-particle or particles with mass number less than 4 was normal, however, for the heavier fragments the slope temperatures were higher than limiting temperature T-lim. It may be expected because the heavier fragments were emitted at the early stage of the formation of compound nuclei or because of Coulomb instability. For larger slope temperature than T-lim its angular dependence was tested too.
引用
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页码:223 / 230
页数:8
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