I=1/2  S-wave scattering


  Very nice agreement between model and data.

  P. Estabrooks, Phys. Rev. D19, 2678 (1979),
       P. Estabrooks et al., Nucl. Phys. B133, 490 (1978).
  D. Aston et al., Nucl. Phys. B296, 493 (1988).