PT Journal
AU Alvarez-Ruso, L
   Hernandez, E
   Nieves, J
   Vicente Vacas, MJ
TI Watson's theorem and the N Delta(1232) axial transition
SO Physical Review D
JI Phys. Rev. D
PY 2016
BP 014016
EP 16pp
VL 93
IS 1
DI 10.1103/PhysRevD.93.014016
LA English
AB We present a new determination of the N Delta axial form factors from neutrino induced pion production data. For this purpose, the model of Hernandez et al. [Phys. Rev. D 76, 033005 (2007)] is improved by partially restoring unitarity. This is accomplished by imposing Watson's theorem on the dominant vector and axial multipoles. As a consequence, a larger C-5(A) (0), in good agreement with the prediction from the off-diagonal Goldberger-Treiman relation, is now obtained.
ER