Conference Papers Year : 1998

The Pion-Nucleon coupling constant from np charge exchange scattering

T. E. O. Ericson
  • Function : Author
J. Rahm
  • Function : Author
J. Blomgren
  • Function : Author
N. Olsson
  • Function : Author

Abstract

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.

Dates and versions

in2p3-00195859 , version 1 (11-12-2007)

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Cite

B. Loiseau, T. E. O. Ericson, J. Rahm, J. Blomgren, N. Olsson. The Pion-Nucleon coupling constant from np charge exchange scattering. Seventh International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon, Jul 1997, Vancouver, Canada. pp.117. ⟨in2p3-00195859⟩
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