全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
物理学报  2006 

Total cross sections for scattering of positron from CO, HCl, NH3 and CH4 at intermediate and high energies
中高能正电子被CO,HCl,NH3及SiH4散射的总截面

Keywords: positron scattering,additivity rule,bonded atom,total cross section
正电子散射,
,可加性规则,,束缚原子,,总截面

Full-Text   Cite this paper   Add to My Lib

Abstract:

A complex optical model potential modified by incorporating the concept of bonded atom, which takes into consideration the overlapping effect of electron clouds between two atoms in a molecule, is firstly employed to calculate the total cross sections for positron scattering from CO, HCl, NH3, SiH4 in the incident energy range 30-3000eV by using additivity rule model at Hartree-Fock level. In the study, the complex optical model potential composed of static, correlation polarization plus absorption contributions firstly uses the bonded-atom concept. The results of quantitative molecular total cross sections are compared with those obtained by experiments and other theories wherever available, and good agreement is obtained. It is shown that the additivity rule model together with the complex optical potential model modified by incorporating the concept of bonded atom can give much better calculation results than the unmodified one.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133