Scattering of near-zero-energy electrons and positrons by H-2
文献类型：期刊论文
| 作者 | Zhang, J. -Y.1; Yang, Y. -J.2; Qian, Y.3; Yan, Z. -C.4,5,6; Schwingenschloegl, U.1 |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2014-04-15 |
| 卷号 | 89期号:4 |
| 英文摘要 | The parameters for S-wave elastic scattering of near-zero-energy electrons and positrons by H-2 molecules are calculated using the stabilization method with explicitly correlated Gaussians. The confined variational method is applied to optimize the Gaussians to describe the short-range interaction of incident e(+/-) with H2 in the fixed-nuclei approximation. For e(+)- H-2 scattering the scattering length of previous work [Phys. Rev. Lett. 103, 223202 ( 2009)] is substantially improved. More importantly, for e(-)-H-2 scattering, from first principles, the scattering length is computed as a function of the internuclear distance. In the case that the two nuclei are at the equilibrium distance the results are in a good agreement with values derived from fitting experimental total and diffusion cross sections to the modified effective range theory. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Optics ; Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Optics ; Physics |
| 关键词[WOS] | HYDROGEN-MOLECULE SCATTERING ; STOCHASTIC VARIATIONAL METHOD ; VIBRATIONAL-EXCITATION ; ELASTIC-SCATTERING ; SLOW-ELECTRONS ; CROSS-SECTIONS ; ROTATIONAL EXCITATION ; IMPACT ; H2 ; ANNIHILATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000334308700003 |
| 公开日期 | 2015-07-14 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/1419]  |
| 专题 | 武汉物理与数学研究所_理论与交叉研究部 |
| 作者单位 | 1.King Abdullah Univ Sci & Technol, PSE Div, Thuwal 239556900, Saudi Arabia 2.Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China 3.E China Normal Univ, Dept Comp Sci & Technol, Shanghai 200062, Peoples R China 4.Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada 5.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 6.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, J. -Y.,Yang, Y. -J.,Qian, Y.,et al. Scattering of near-zero-energy electrons and positrons by H-2[J]. PHYSICAL REVIEW A,2014,89(4). |
| APA | Zhang, J. -Y.,Yang, Y. -J.,Qian, Y.,Yan, Z. -C.,&Schwingenschloegl, U..(2014).Scattering of near-zero-energy electrons and positrons by H-2.PHYSICAL REVIEW A,89(4). |
| MLA | Zhang, J. -Y.,et al."Scattering of near-zero-energy electrons and positrons by H-2".PHYSICAL REVIEW A 89.4(2014). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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