Title: The Coupled Channels Optical Method 
        for Positron-Hydrogen Atom Scattering

 Authors: Kuru Ratnavelu and K Rajagopal

 Affliations: Institute of Mathematical Sciences
              University of Malaya
              50603 Kuala Lumpur, MALAYSIA

 Summary: In this work, we report an implementation of the coupled-channels
          -optical method within the close-coupling formalism for
          positron-hydrogen that allows both manifolds of the positron-
          hydrogen and the positronium-proton channels to be incorporated
          together.The method is applied at intermediate energies 30-200eV.