The effect of long-range forces on cold-atomic interaction: Ps-H system

Abstract

The s-wave elastic phase-shifts and s-wave elastic cross sections are studied to find the effect of long-range forces on cold-atomic interactions using a modified static-exchange model for Ps-H system. A Feshbach resonance in the triplet channel using the modified static-exchange model at the energy ~ 3x10-6 eV caused by long-range forces in the Ps-H system is being reported.

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