Fusion of the 6Li+120Sn and 7Li+119Sn and the role of neutron transfer and breakup processes

被引：0
|
作者：
Fisichella, M. [1 ]
Shotter, A. C. [2 ]
Di Pietro, A. [1 ]
Figuera, P. [1 ]
Lattuada, M. [1 ,3 ]
Musumarra, A. [1 ,3 ]
Pellegriti, M. G. [1 ,3 ]
Ruiz, C. [4 ]
Scuderi, V. [1 ,3 ]
Strano, E. [1 ,3 ]
Torresi, D. [1 ,3 ]
Zadro, M. [5 ]
机构：
[1] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95125 Catania, Italy
[2] Univ Edinburgh, JCMB, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland
[3] Dipartimento Fis & Astron, I-95125 Catania, Italy
[4] TRIUMF, Vancouver, BC V6T 2A3, Canada
[5] Rudjer Boskovic Inst, HR-10000 Zagreb, Croatia
来源：
INTERNATIONAL SYMPOSIUM ON ENTRANCE CHANNEL EFFECT ON THE REACTION MECHANISM IN HEAVY ION COLLISIONS | 2014年 / 515卷
关键词：
HEAVY-ION FUSION; BARRIER FUSION; NUCLEI;
D O I：
10.1088/1742-6596/515/1/012006
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Excitation functions have been measured for the fusion of the weakly bound nuclei Li-6 and Li-7 respectively with Sn-120 and Sn-119 at energies around the Coulomb barrier by using an activation technique. With such a study we aim to investigate the role played by direct processes as neutron transfer and breakup on fusion. At energies above the barrier, the complete fusion cross section are lower than those predicted by fusion models. This suppression is independent of beam energy and is in agreement with the values reported in literature for heavier systems. At energies below the barrier, no significant enhancement due to the positive Q-value for one and two neutron transfer for the Li-7+Sn-119 system is observed as compared with the Li-6+Sn-120.
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页数：7
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