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arXiv · hep-ph/9811515

Precise strength of th piNN coupling constant

T. E. O. Ericson·B. Loiseau·J. Rahm·J. Blomgren·N. Olsson·A. W. Thomas
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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 $g^2_c$(GMO) = 13.99(24).

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T. E. O. Ericson, B. Loiseau, J. Rahm, J. Blomgren, N. Olsson, A. W. Thomas. 1998-11-30. Precise strength of th piNN coupling constant. https://doi.org/10.1016/s0375-9474(00)88577-2

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