Precise strength of th piNN coupling constant

T. E. O. Ericson; B. Loiseau; J. Rahm; J. Blomgren; N. Olsson; A. W. Thomas

doi:10.1016/S0375-9474(00)88577-2

paper

Precise strength of th piNN coupling constant

arXiv:hep-ph/9811515 · doi:10.1016/S0375-9474(00)88577-2

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).

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