Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations
Lee Teck-Ghee(李德义)a)b), Wong Cheuk-Yin(黄卓然)a)c), and Wang Lee-Shien(王礼贤)d)
aPhysics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA; b Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506, USA; c School of Physics & Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China; dDepartment of Physics, Harvey Mudd College, Claremont, California 91711, USA
Abstract This paper evaluates the interaction potential between a hydrogen and an antihydrogen using the second-order perturbation theory within the framework of the four-body system in a separable two-body basis. It finds that the H--$\bar{\rm H}$ interaction potential possesses the peculiar features of a shallow local minimum located around interatomic separations of $r\sim 6$ a.u. and a barrier rising at $r\lesssim5 $ a.u.
Received: 15 November 2007
Revised: 27 December 2007
Accepted manuscript online:
Fund: Project
supported in part by the National Natural Science Foundation of
China (Grant No 10575024), and in part by the Division of Nuclear
Physics, Department of Energy (Grant No DE-AC05-00OR22725) managed
by UT-Battelle, LLC.
Cite this article:
Lee Teck-Ghee(李德义), Wong Cheuk-Yin(黄卓然), and Wang Lee-Shien(王礼贤) Peculiar features of the interaction potential between hydrogen and antihydrogen at intermediate separations 2008 Chin. Phys. B 17 2897
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