HAL : in2p3-00195859, version 1
 arXiv : nucl-th/9804019
 Seventh International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon, Vancouver : Canada (1997)
 The Pion-Nucleon coupling constant from np charge exchange scattering
 (1998)
 A novel extrapolation method has been used to deduce the charged Pion-Nucleon coupling constant from backward $np$ differential scattering cross sections. We applied it to new measurements performed at 162 MeV at the The Svedberg Laboratory in Uppsala. In the angular range $150^\circ-180^\circ$, the carefully normalized data are steeper than those of most previous measurements. The extracted value, $g^2_{\pi^\pm} = 14.52 \pm 0.26$, in good agreement with the classical value, is higher than those determined in recent nucleon-nucleon partial-wave analyses.
 Thème(s) : Physique/Physique Nucléaire Théorique
 Lien vers le texte intégral : http://fr.arXiv.org/abs/nucl-th/9804019
 in2p3-00195859, version 1 http://hal.in2p3.fr/in2p3-00195859 oai:hal.in2p3.fr:in2p3-00195859 Contributeur : Dominique Girod <> Soumis le : Mardi 11 Décembre 2007, 15:43:44 Dernière modification le : Mardi 11 Décembre 2007, 15:48:15