The Study Of Electron Scattering From Molecule In A Laser Field

Based on the laser technology, not only the picking up a good energy source and background sites forscattering collision process, but also have important implications for the study of the role of atomic andmolecular collision processes in the laser field. Also in consideration of the impact of laser scatteringcollision process, there must be the number of new parameters in our theoretical system, which makes theprocess more complex, so that the very clear scattering process of electrons and target atoms in originalresearch has a lot of new phenomena emerging. In-depth study of the scattering process in the laser field,not only raised many new physical problems, and further deepen the role of force in electronics, the targetatoms and target molecules as well as the understanding of the dynamics and kinematics of the process, andwill also has made gratifying progress in theory and experiment. There will be important Foundationapplication value for the field of weather physics, laser physics, astronomy, plasma and far-reachingimplications for fiber optics, long-distance communications, materials science, biology, thermonuclearfusion.In the case of laser-assisted interaction of the incident electron, the target and target molecules areextremely complex, to studying this process, we must first figure out the interaction of electrons and atomsin the laser field. Because electronic and atomic collisions in laser-assisted contains the electron, atom andlaser field, which is a multi-body interactions, it is difficult to obtain accurate results by theoretical methods.Using a small number of assumptions and ignoring some secondary factors will be able to simplify thisprocess, and eventually became in the classic time-dependent vector potential field Ar (t)and localizedpotential V (r), the process of the fast-moving electronics and the potential field colliding with each other.In which potential V (r)is used to represent the incident particle and target particle scattering, the choiceof the potential energy function has an extremely important impact for the final result. At the same time, thesize of the incident particle kinetic energy, the length between the incident particle and target particle andother factors, has an important role in the choice of the interaction potential, taking into account this seriesof reasons, for choosing to a suitable interaction potential becoming more difficult. Using theoretical analysis of Trombette and its partners, we believe that short-range potential scattering of the incidentparticle and target particle is more reasonable.Electronic and molecular collision processes are much more complex than the electronic and atomiccollisions, it is a many-body interaction. This is because the internal structure of the molecule is much morecomplex than the internal structure atomic, and there is no definite internal center of symmetry in much ofmolecules, which makes the theoretical calculation very difficult. In this article, we use the perturbationtheory method for solving the Schr dinger equation of electron-atom scattering process, obtainingelectron-atom scattering differential cross section in the laser field at last. By comparison, we find it ismore appropriate for using the additivity rule to deal with this problem. Through the use of the additivityrule to integrate the above results, we get the differential scattering cross section of the electron-moleculescattering in the laser field. Finally, the comparison between our calculation and other theoretical resultsand experimental results has been analyzed, our conclusion has obvious advantages.