EIKONAL THEORY OF CHARGED-PARTICLE POTENTIAL SCATTERING IN THE PRESENCE OF A LOW-FREQUENCY LASER FIELD

被引:18
作者
FERRANTE, G [1 ]
LEONE, C [1 ]
LOCASCIO, L [1 ]
机构
[1] FAC INGN,IST FIS,I-90125 PALERMO,ITALY
关键词
D O I
10.1088/0022-3700/12/14/015
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An eikonal treatment for elastic scattering by a static potential V(r) in the presence of a low-frequency laser radiation field taken in the dipole approximation with linear polarisation is presented. The differential cross section of the scattering processes accompanied by the emission or absorption of N photons is found as a product of a Bessel function, containing the effect of the radiation field, times the field-free eikonal differential cross section with, however, initial and final wave vectors of the free particle motion duly renormalised to include the effect of the radiation field. The comparison with other treatments of the same physical process shows agreement with more sophisticated approaches and confirms once more the superiority of the eikonal approximation over the first Born approximation.
引用
收藏
页码:2319 / 2324
页数:6
相关论文
共 12 条