Abstract

This paper reports the elastic scattering cross sections for a few low-lying partial waves and also the converged elastic cross sections with added partial waves in the energy range ${10}^{\ensuremath{-}10}--{10}^{\ensuremath{-}2}$ a.u. for the $\mathrm{H}\ifmmode\bar\else\textasciimacron\fi{}\ensuremath{-}\mathrm{H}$ system using atomic orbital techniques. The present s-wave predictions are in good agreement with the other existing theoretical estimates. Nonzero low-order partial-wave elastic cross sections show dips like for s-wave scattering. The converged elastic cross section shows structurelike behavior in the energy range $4.2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}--{10}^{\ensuremath{-}2}\mathrm{a}.\mathrm{u}.$

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