New phenomena in laser-assisted scattering of an electron by a muon  

作　　者：Wen-Yuan Du Peng-Fei Zhang Bing-Hong Wang 

机构地区：[1]Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

出　　处：《Frontiers of physics》2018年第4期251-258,共8页物理学前沿（英文版）

基　　金：This work was partially supported by the National Natural Science Foundation of China （NSFC） un- der Grant Nos. 11275186, 91024026, and FOM2014OF001 and the National Basic Research Program of China under Crant Nos. 2007CB925200 and 2010CB923301.

摘　　要：The scattering of an electron by a muon in the presence of a linearly polarized laser field is investigated in the first Born approximation. The theoretical results reveal the following： i） At medium and large scattering angles, many multiphoton processes occur during scattering, and these nonlinear phenomena may predict the resonant state of the electron and the muon formed in the collision process, ii） The photoabsorption （inverse brerasstrahlung） dominates the photoemission （bremsstrahlung）, causing the cross section to increase, iii） When the laser polarization deviates from the incident direction, the laser- modified total cross section depends considerably on the azimuthal angle of the scattered electron. The dependence of the cross section on the field strength, polarization direction, and electron-impact energy are studied.The scattering of an electron by a muon in the presence of a linearly polarized laser field is investigated in the first Born approximation. The theoretical results reveal the following： i） At medium and large scattering angles, many multiphoton processes occur during scattering, and these nonlinear phenomena may predict the resonant state of the electron and the muon formed in the collision process, ii） The photoabsorption （inverse brerasstrahlung） dominates the photoemission （bremsstrahlung）, causing the cross section to increase, iii） When the laser polarization deviates from the incident direction, the laser- modified total cross section depends considerably on the azimuthal angle of the scattered electron. The dependence of the cross section on the field strength, polarization direction, and electron-impact energy are studied.

关 键 词：laser-assisted scattering multiphoton processes nonlinear effect generalized Bessel function 

分 类 号：O482.532[理学—固体物理] TJ415[理学—物理]