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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 $g^2_c$(GMO) = 13.99(24).
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http://hal.in2p3.fr/in2p3-00197182
Contributor : Dominique Girod <>
Submitted on : Friday, December 14, 2007 - 2:27:39 PM
Last modification on : Friday, April 10, 2020 - 5:30:52 PM

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T. E. O. Ericson, B. Loiseau, J. Rahm, J. Blomgren, N. Olsson, et al.. Precise strength of th $\piNN$ coupling constant. INPC/98, Aug 1998, Paris, France. pp.939c-942c, ⟨10.1016/S0375-9474(00)88577-2⟩. ⟨in2p3-00197182⟩

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