Direct determinations of the pi NN coupling constants

Authors
Ericson, TEO Loiseau, B
Citation
Teo. Ericson et B. Loiseau, Direct determinations of the pi NN coupling constants, ACT PHY P B, 29(11), 1998, pp. 3015-3024
Citations number
27
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA POLONICA B
ISSN journal
05874254 → ACNP
Volume
29
Issue
11
Year of publication
1998
Pages
3015 - 3024
Database
ISI
SICI code
0587-4254(199811)29:11<3015:DDOTPN>2.0.ZU;2-Z
Abstract
A novel extrapolation method has been used to deduce directly the charged p i NN coupling constant from backward np differential scattering cross secti ons. The extracted value, g(c)(2) = 14.52(0.26) is higher than the indirect ly deduced values obtained in nucleon-nucleon energy-dependent partial-wave analyses. Our preliminary direct value from a reanalysis of the GMO sum-ru le points to an intermediate value of g(c)(2) about 13.97(30).