Precise strength of the π NN coupling constant
Identifieur interne : 001245 ( Istex/Curation ); précédent : 001244; suivant : 001246Precise strength of the π NN coupling constant
Auteurs : T. E. O. Ericson [Suède] ; B. Loiseau [France] ; J. Rahm [Suède] ; J. Blomgren [Suède] ; N. Olsson [Suède] ; A. W. Thomas [Australie]Source :
- Nuclear Physics, Section A [ 0375-9474 ] ; 1999.
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Abstract
Abstract: We report here a preliminary value for the πNN coupling constant deduced from the Goldberger-Miyazawa-Oehme sum rule for forward πN scattering. As in our previous determination from up 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 gc2 = 13.99(24).
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DOI: 10.1016/S0375-9474(00)88577-2
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<front><div type="abstract" xml:lang="en">Abstract: We report here a preliminary value for the πNN coupling constant deduced from the Goldberger-Miyazawa-Oehme sum rule for forward πN scattering. As in our previous determination from up 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 gc2 = 13.99(24).</div>
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