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Watson's theorem and the $N\Delta(1232)$ axial transition
- Source :
- Physical Review D93, 014016 (2016)
- Publication Year :
- 2015
-
Abstract
- 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 {\it et al.} [Phys. Rev. D76, 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.<br />Comment: 17 latex pages, 7 figures, 2 tables. Some typos corrected
Details
- Database :
- arXiv
- Journal :
- Physical Review D93, 014016 (2016)
- Publication Type :
- Report
- Accession number :
- edsarx.1510.06266
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.93.014016