Antihydrogen in Interaction with Atoms and Surfaces
2005 (English)In: AIP Conference Proceedings, ISSN 0094-243X, Vol. 770, no 1, 51-67 p.Article in journal (Other (popular science, discussion, etc.)) Published
Anoverview of the antiatom interactions with matter is given inthe context of the ongoing efforts to trap and coolantihydrogen at CERN. We show how the atom-antiatom scattering can,in addition to annihilation, result in a number of collisionalreactions such as elastic scattering, rearrangement to protonium and positronium,and even radiative association leading to formation of unusual short-livedatom-antiatom molecules. We also show that sufficiently cold antiatoms canbe reflected from material walls. The rates for these reactionsare of interest for the experiments with antihydrogen atoms atCERN, they probe the feasibility of collisional cooling of antihydrogenand they contribute to the understanding of stability of matterin contact with antimatter in general.
Place, publisher, year, edition, pages
2005. Vol. 770, no 1, 51-67 p.
IdentifiersURN: urn:nbn:se:uu:diva-18584DOI: 10.1063/1.1928841OAI: oai:DiVA.org:uu-18584DiVA: diva2:46356