Pre-equilibrium particle emission due to heavy and light ion interactions

被引:0
作者
Singh, D. [1 ]
Linda, Sneha B. [1 ]
Giri, Pankaj K. [1 ]
Mahato, Amritraj [1 ]
Utkarsh [1 ]
Shrotriya, Pramod K. [2 ]
Mishra, A. K. [3 ]
Ansari, M. Afzal [4 ]
机构
[1] Cent Univ Jharkhand, Dept Phys, Ranchi 835205, Bihar, India
[2] KSRMV Inter Coll, Aligarh 202280, Uttar Pradesh, India
[3] SATI, Dept Appl Sci Phys, Vidisha 464001, India
[4] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh, India
关键词
Pre-equilibrium emission; Excitation functions; Pre-equilibrium fraction; Mass; Asymmetry; ALICE-91; FUSION; C-12;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
To understand the mechanism of pre-equilibrium particle emission using light and heavy ion beams with different targets at energy above the Coulomb barrier, a study has been done. The cross-sections for twelve systems He-4 + Co-59, He-4 +Sn-124, He-4 + Ho-165, C-12 + Co-59, C-12 +Sn-124, C-12 + Ho-165, O-16 + Co-59, O-16 + Sn-124, O-16 + Ho-165, F-19 + Co-59, F-19 + Sn-124 and F-19 + Ho-165 have been calculated using the statistical model code ALICE-91. Significant pre-equilibrium particle emission contribution has been obtained for lighter systems at higher projectile energy. It has also been found that the pre-equilibrium particle emission affects predominantly over the equilibrated compound nucleus emissions at high projectile energies. Pre-equilibrium fraction (F-PEQ) has been deduced from the excitation function data for different systems at different projectile energies. The present results indicate that the probability of pre-equilibrium particle emission depends not only on a single entrance channel parameter, but it also depends on various entrance channel parameters, namely: projectile energy, mass of the projectile, mass of the target and entrance-channel mass asymmetry. The present analysis of the data also suggests that the pre-equilibrium particle emission contributes significantly at higher projectile energy for lighter mass projectile and target.
引用
收藏
页码:580 / 583
页数:4
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