摘要
Ab initio calculations of dielectronic recombination(DR)processes from the ground state 1s 2 of He-like argon ion through doubly excited states 1s2snl,1s2pnl(n=2 to 9)of Li-like argon ions are performed using the multi-configuration HatreeFock method with relativistic correction.The theoretical method and its corresponding computation will be outlined.For higher doubly excited states with n>9,the scaling law is used to extrapolate the Auger and radiative transition rates.The total and stateto-state cross sections with corresponding rate coefficients in the temperature from 102 eV to 106 eV are presented,as well as the DR strengths for all the separate resonances.Moreover,peculiarities of the DR from doubly excited 1s2s3l′configurations are analyzed and the contributions of two-electron-one-photo(TEOP)radiative transitions to the DR cross sections are also investigated,such as 1s2s^(2)→1s^(2)2p,due to the strong configuration interactions.Our theoretical results appear to be in excellent agreement with the previous and recent experimental measurements.
基金
supported by the Chinese National Foundation of Sciences(Grant Nos.10344001 and 10174009)
the Science and Technology Foundation of Chinese Academy of Engineering Physics,and National High-Tech ICF Committee in China。
