Phys. Rev. Lett. 84, 4577–4580 (2000)

Hydrogen-Antihydrogen Collisions

Abstract

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P. Froelich¹, S. Jonsell¹, A. Saenz², B. Zygelman³, and A. Dalgarno³
¹Department of Quantum Chemistry, Uppsala University, Box 518, 75120 Uppsala, Sweden
²Max-Planck-Institute for Quantum Optics, Hans-Kopfermann-Straße 1, D-85748 Garching, Germany
³Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138

Received 30 November 1999; published in the issue dated 15 May 2000

Matter-antimatter interactions are investigated using hydrogen-antihydrogen collisions as an example. Cross sections for elastic scattering and for the antihydrogen loss (either through the rearrangement reaction, resulting in formation of protonium and positronium according to H+H̅ →pp̅ +e⁺e^-, or via annihilation in flight) are calculated for the first time in a fully quantum mechanical approach. Implications for experiments intending to trap and cool antihydrogen are discussed.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.84.4577

DOI:

10.1103/PhysRevLett.84.4577

PACS:

36.10.-k, 34.90.+q

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Phys. Rev. Lett. 84, 4577–4580 (2000)

Hydrogen-Antihydrogen Collisions