Distorted-wave Born approximation study of the 11Li(p,t)9Li reaction

21st International School on Nuclear Physics and Applications & International Symposium on Exotic Nuclei

Cowley, A.A.^1,2

Department of Physics, Stellenbosch University, Private Bag X1, Matieland

7602, South Africa^1

IThemba Laboratory for Accelerator Based Sciences, P O Box 722, Somerset West

7129, South Africa^2

关键词: 2-structure;    Distorted wave Born approximation;    Dominant contributions;    Incident energy;    Simple treatments;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/724/1/012009/pdf
DOI  :  10.1088/1742-6596/724/1/012009

来源: IOP

【 摘 要 】

The reaction11Li(p,t)9Li(gs) at an incident energy of 4 MeV is treated in terms of a simplistic distorted-wave Born approximation transfer. The halo neutrons involved in the reaction are treated as a di-neutron cluster transferred in a simultaneous process. This appears to be a good approximation of the mechanism. The dominant contribution to the reaction comes from the known (1s1/2)2structure component of the ground state of11Li, and the cross section angular distribution seems to be relatively insensitive to the fact that11Li has an anomalously large radius due to its Borromean halo properties. Significantly this simple treatment of the reaction is in much better agreement with the experimental angular distribution than a more sophisticated calculation.