Using the coordinate rotation method with Pekeris trial functions, we find evidence that a resonance occurs in $e^{+}$-H $S$-wave scattering at a complex energy ($-0.257\mathrm{}374-i0.000067$) Ry. No lower resonance is found in the calculation.

• Received 10 October 1977

DOI:https://doi.org/10.1103/PhysRevLett.40.313