Low-temperature antihydrogen-atom scattering

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:247

Article; Proceedings Paper

Jonsell, S.

关键词: antihydrogen;    antimatter;    scattering;    annihilation;   

DOI  :  10.1016/j.nimb.2006.01.050

来源: Elsevier

【 摘 要 】

A simple method to include the strong force in atom-antiatom scattering is presented. It is based on the strong-force scattering length between the nucleon and antinucleon. Using this method elastic and annihilation cross-sections are calculated for hydrogen-antihydrogen and helium-antihydrogen scattering. The results are compared to first-order perturbation theory using a pseudo-potential. The pseudo-potential approach works fairly well for hydrogen-anti hydrogen scattering, but fails for helium-antihydrogen scattering where strong-force effects are more prominent. (c) 2006 Elsevier B.V. All rights reserved.

【 授权许可】

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