uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Including the strong nuclear force in antihydrogen-scattering calculations
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical and Analytical Chemistry, Quantum Chemistry.
Show others and affiliations
2005 (English)In: Canadian journal of physics (Print), ISSN 0008-4204, E-ISSN 1208-6045, Vol. 83, no 4, 435-445 p.Article in journal (Refereed) Published
Abstract [en]

We investigate two methods to include the strong nuclear force in hydrogen-antihydrogen scattering calculations. First, we construct a model optical potential with parameters determined by the measured shift and width of the protonium ground state. Although this potential is a very crude model for the strong nuclear force, its parameters may be adjusted to reproduce both bound states and low-energy annihilation cross sections to within the experimental accuracy. It is then shown that this potential may be reduced to a short-distance boundary condition in terms of the proton-antiproton strong-interaction scattering length. Elastic and annihilation cross sections for ground-state hydrogen-antihydrogen scattering are calculated for s- and p-waves, and collision energies up to 1 atomic unit. The two methods are found to agree to within about 1%. The main source of discrepancy is that the scattering-length approach does not account for vacuum polarization, relativistic, and finite-size corrections. We verify that the range of the strong interaction potential does not affect the hydrogen-antihydrogen s-wave scattering properties, and that the strong interaction has negligible influence on p-wave scattering.

Place, publisher, year, edition, pages
2005. Vol. 83, no 4, 435-445 p.
National Category
Chemical Sciences
URN: urn:nbn:se:uu:diva-74196DOI: 10.1139/p05-017OAI: oai:DiVA.org:uu-74196DiVA: diva2:102106
Available from: 2007-02-14 Created: 2007-02-14 Last updated: 2011-11-21Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full texthttp://adsabs.harvard.edu/abs/2005CaJPh..83..435J

Search in DiVA

By author/editor
Froelich, Piotr
By organisation
Quantum Chemistry
In the same journal
Canadian journal of physics (Print)
Chemical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 421 hits
ReferencesLink to record
Permanent link

Direct link