中国物理B ›› 2017, Vol. 26 ›› Issue (2): 23401-023401.doi: 10.1088/1674-1056/26/2/023401
• ATOMIC AND MOLECULAR PHYSICS • 上一篇 下一篇
Optical potential approach for positron scattering by metastable 23S state of helium
Xi-Gang Wu(吴锡刚), Yong-Jun Cheng(程勇军), Fang Liu(刘芳), Ya-Jun Zhou(周雅君)
- 1 Academy of Physical Science and Technology and School of Applied Foreign Languages, Heilongjiang University, Harbin 150080, China;
2 Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China;
3 Department of Material Physics, Harbin University of Science and Technology, Harbin 150080, China
Optical potential approach for positron scattering by metastable 23S state of helium
Xi-Gang Wu(吴锡刚)1, Yong-Jun Cheng(程勇军)2, Fang Liu(刘芳)3, Ya-Jun Zhou(周雅君)2
- 1 Academy of Physical Science and Technology and School of Applied Foreign Languages, Heilongjiang University, Harbin 150080, China;
2 Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China;
3 Department of Material Physics, Harbin University of Science and Technology, Harbin 150080, China
摘要：
The momentum space coupled channels optical (CCO) method for positron scattering has been extended to study the scattering of positrons by metastable helium for impact energies in the range from the positronium threshold up to high energies. Both the positronium formation and ionization continuum channels are included in the calculations via a complex equivalent local potential. The positronium formation, ionization, elastic and 23S-23P excitation, and total scattering cross sections are all presented and compared with the available information.
中图分类号: (General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))
- 34.10.+x