Second-order Born effect in coplanar doubly symmetric (e, 2e) collisions for sodium

作者：Wang Yang; Jiao Liguang; Zhou Yajun^*

来源：Physics Letters A, 2012, 376(30-31): 2122-2125.

DOI：10.1016/j.physleta.2012.05.002

• (e, 2e) collisions
• Second-order Born effect
• Distorted wave Born approximation
• Triple differential cross sections

The second-order distorted wave Born approximation (DWBA) method is employed to investigate the triple differential cross sections (TDCS) of coplanar doubly symmetric (e, 2e) collisions for alkali target sodium at excess energies of 6-60 eV. Comparing with the first-order DWBA calculations, the inclusion of second-order Born term in the scattering amplitude improves the degree of agreement with experiments, especially for backward scattering region of TDCS. This indicates the present second-order Born term is capable to give a reasonable correction to DWBA model in studying coplanar symmetric (e, 2e) problems in low and intermediate energy range.

• 出版日期2012-6-18
• 单位哈尔滨工业大学