Study For The Triple-differential Cross-section In Linear Polarization Laser Field And The Stark Effect

Quantum scattering phenomenon can occur in the experiment, can occur in nature all the same. Scattering experiment is one of the most important ways to understand the nature in the micro world of the dynamics for people. With the study for the quantum scattering theory, the reaction of the laser field assisted ee)2,( is paid more and more attention by people.Usually into the incident particle collision of target particles(i.e scattering center) occurred collision under the action of the change of momentum in the study of scattering phenomena. By using the method of control variables, in the field of laser with proper, ionization and collision reaction of hydrogen atom in the laser field assisted, then calculate the TDCS and draw two-dimensional image, by comparing the image to analysis and research.In this thesis, study the hydrogen atom in ground state and excited state, in the TDCS with a laser field or no laser field and the process of change with the scattering angle, as the theoretical basis by ee)2,( reaction. At the same time, considering the stark effect in the laser field assisted, hydrogen atom can split occurred under the influence of electric field, and then collisioning the incident electron. Choose the initial state and final state wave functions in Born. Then calculate the TDCS and reaction to the generate images. Finally to get the relationship between the scattering angle and the intensity of the laser field through the the images.When the hydrogen atom in ground state and excited state, in the TDCS with a laser field or no laser field, through theoretical calculation and analysising of the images we can obtain both binary and recoil gradually reduce with the increase of scattering angle. But the binary splited in excited state. When the scattering angle increaseds to 9°, the splitting is disappeared. When the scattering angle increaseds to 11°, the binary with a laser field is less than the binary with no laser field. There is no other changes for the recoil. Considering the stark effect, the binary all splited when the hydrogen atom in ground state and excited state, and the spliting also increases with the increase of the intensity of the laser field.