Precise strength of th piNN coupling constant

Abstract

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 $g_c^2$(GMO) = 13.99(24).

Comments: 4 pages, 1 figure, contribution to INPC/98, to be published in Conference Proceedings, Nuclear Physics A (Conference Proceedings)