摘要
Using the optical-model, we theoretically investigate the positronium （Ps） formation in e^＋-Mg collision from the positronium threshold to 60.0eV. A complex equivalent local polarization potential is obtained to describe the rearrangement process, which reproduces Ps formation cross section. We report the total Ps （n = 1 ＋ 2） formation cross sections and compare them with the experimental measurements and other theoretical results.
Using the optical-model, we theoretically investigate the positronium （Ps） formation in e^＋-Mg collision from the positronium threshold to 60.0eV. A complex equivalent local polarization potential is obtained to describe the rearrangement process, which reproduces Ps formation cross section. We report the total Ps （n = 1 ＋ 2） formation cross sections and compare them with the experimental measurements and other theoretical results.
基金
Supported by the National Natural Science Foundation of China under Grant No 10374035, and the National Doctoral Foundation of the Ministry of Education China under Grant No 20020183054.
