Low Temperature Hydrogen Antihydrogen Interactions |
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Authors: | E. A. G. Armour C. W. Chamberlain |
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Affiliation: | (1) School of Mathematical Sciences, University of Nottingham, Nottingham, NG7 2RD, UK;(2) School of Mathematical Sciences, University of Nottingham, Nottingham, NG7 2RD, UK |
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Abstract: | In view of current interest in the trapping of antihydrogen ( ) atoms at low temperatures [1–3], we have carried out a full four-body variational calculation to determine s-wave elastic phase shifts for hydrogen antihydrogen scattering, using the Kohn Variational Principle. Terms outside the Born–Oppenheimer approximation have been taken into account using the formalism of Kołos and Wolniewicz [4]. As far as we are aware, this is the first time that these terms have been included in an H scattering calculation. This is a continuation of earlier work on H– interactions [5–7]. Preliminary results differ substantially from those calculated using the Born–Oppenheimer approximation [8–10]. A method is outlined for reducing this discrepancy and taking the rearrangement channel into account. This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | antihydrogen hydrogen elastic scattering protonium positronium |
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