Analysis Of The Triply-differential Cross Section For Electron-impact Ionization Of Hydrogen In Presence Of Circular Polarization Laser Field

Quantum scattering is a very important physics door of the subject, in modernphysics，it plays an important role for the quantum scattering of research in the fieldof which people have begun to deepen the understanding of the world and the micromotion rule of microscopic particles.(e,2e) reaction in recent years to attached muchimportance, especially laser field aided (e,2e) reaction is widely concerned.This article is in (e,2e) of the reaction of basic theory which on the collision ofthe electronic from hydrogen atom in weak laser field in the process, the circularpolarization laser field assistant from the hydrogen atom of electrons hit tripledifferential scattering section, the level of methods study the Born approximationreaction process. The strength of the laser field is far less than that of the hydrogenatom of the electric field caused the coulomb places. The collision incident frommeet the boundary conditions and the boundary conditions at the end of the shootearly stationary wave function, ground state transition matrix and excited statestransition matrix was calculated. In the ground state cases we ignore the centroidmovement and a relative motion, and introduced effective charge, discussed the laserfield intensity and scattering angle of hydrogen atoms from the size of thetriple-differential scattering in the process of the influence of the cross section, andthe theoretical results of simulation drawing and obtain the better verification. Inexcited states cases, introduces produce This article is in (e,2e) of the reaction ofbasic theory which on the collision of the electronic from hydrogen atom in weaklaser field in the process, the circular polarization laser field assistant from thehydrogen atom of electrons hit triple differential scattering section, the level ofmethods study the Born approximation reaction process. The strength of the laserfield is far less than that of the hydrogen atom of the electric field caused thecoulomb places. The collision incident from meet the boundary conditions and theboundary conditions at the end of the shoot early stationary wave function, groundstate transition matrix and excited states transition matrix was calculated. In theground state cases we ignore the centroid movement and a relative motion, and introduced effective charge, discussed the laser field intensity and scattering angle ofhydrogen atoms from the size of the triple-differential scattering in the process of theinfluence of the cross section, and the theoretical results of simulation drawing andobtain the better verification. In excited states cases, introduces producefunction(generation function) method, the excited states triple differential scattering sectionare calculated, and also discussed the laser field intensity and scattering angle ofhydrogen atoms from the size of the process of the influence of the triple-differentialscattering section.From the experimental results that the laser field obvious effect of the spatialdistribution of the electronic, when hydrogen atoms in the ground state, join laserfield and field conditions after free, compared the peak we know that ‘binary’ peakand ‘recoil’ peak and peak size change, and with the increase of the laser fieldintensity,‘binary’ peak and ‘recoil’ peak are promoted, when laser field strength inthe same situation, with the increase of scattering angle,‘binary’ peak and ‘recoil’peak are suppressed, the twin peaks have significantly reduced. When hydrogenatoms in excited states, join laser field and field after free condition, the ‘binary’peak appeared split, in join laser field,‘binary’ peak and peak size change, but‘recoil’ peak and peak size are in the same with the basic freedom.