Rearrangement and annihilation in antihydrogen-atom scattering

Journal Article · Fri Aug 08 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2977853· OSTI ID:21152354

Jonsell, Svante ^[1]

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1. Department of Physics, Swansea University, Singleton Park, Swansea SA2 8PP (United Kingdom)

I review some results for annihilation and rearrangement processes in low-energy antihydrogen-hydrogen and antihydrogen-helium scattering. For the strong nuclear force results using a {delta}-function potential are compared to a scattering length approach. It is found that the {delta}-function potential does not give correct annihilation cross sections in the case of antihydrogen-helium scattering. Problem associated with the use of the Born-Oppenheimer approximation for rearrangement calculations are reviewed.

• OSTI ID: 21152354
• Journal Information: AIP Conference Proceedings, Vol. 1037, Issue 1; Conference: Workshop on cold antimatter plasmas and application to fundamental physics, Okinawa (Japan), 20-22 Feb 2008; Other Information: DOI: 10.1063/1.2977853; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANNIHILATION
BORN-OPPENHEIMER APPROXIMATION
COMPARATIVE EVALUATIONS
CROSS SECTIONS
HADRONIC ATOMS
HELIUM
HYDROGEN
POTENTIALS
PROTONS
SCATTERING
SCATTERING LENGTHS