Precise strength of th piNN coupling constant
  We report here a preliminary value for the piNN coupling constant deduced from the GMO sumrule for forward piN scattering. As in our previous determination from np backward differential scattering cross sections we give a critical discussion of the analysis with careful attention not only to the statistical, but also to the systematic uncertainties. Our preliminary evaluation gives $g^2_c$(GMO) = 13.99(24). 
T. E. O. Ericson, B. Loiseau, J. Rahm, J. Blomgren, N. Olsson and A.   W. Thomas