Low-temperature antihydrogen-atom scattering
نویسنده
چکیده
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 pseudopotential approach works fairly well for hydrogen–antihydrogen scattering, but fails for helium-antihydrogen scattering where strong-force effects are more prominent.
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تاریخ انتشار 2005