Calculation of Positronium Formation Cross Sections in Positron–Mg Collision
Cheng Cheng; Peng Yue; Zhou Ya-Jun; Cheng Cheng; Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012; Peng Yue; Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012; Zhou Ya-Jun; Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012
Журнал:
Chinese Physics Letters
Дата:
2005-12-01
Аннотация:
Using the optical-model, we theoretically investigate the positronium (Ps) formation in e<sup>+</sup>–Mg collision from the positronium threshold to 60.0 eV. 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.
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