1998/04/09 by B. Loiseau, T. E. O. Ericson, J. Rahm +2
Physics and Astronomy · #nucl-th
published as Invited Talk at The Seventh International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon, Vancouver, British Columbia, Canada, July 28 -August 1, 1997, piN-Newsletter 13, Editors D. Drechsel et al., p. 117, TRIUMF Report TRI-97-1 · 6 pages, 3 encapsulated figures, epsfig, menu97.cls (included)
arxiv created 1998/04/09 · arxiv updated 2009/12/01
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^∘-180^∘, the carefully normalized data are steeper than those of most previous measurements. The extracted value, g2π^± = 14.52 ± 0.26, in good agreement with the classical value, is higher than those determined in recent nucleon-nucleon partial-wave analyses.