Weak axial exchange currents for the Bethe-Salpeter equation
Nuclear Theory
2009-10-31 v2
Abstract
We construct weak axial one-boson exchange currents for the Bethe-Salpeter equation, starting from chiral Lagrangians of the N-\Delta(1236)-pi-rho-a_1-omega system. The currents fulfil the Ward-Takahashi identities and the matrix element of the full current between the two-body solutions of the Bethe-Salpeter equation satisfies the PCAC constraint exactly.
Cite
@article{arxiv.nucl-th/9911022,
title = {Weak axial exchange currents for the Bethe-Salpeter equation},
author = {F. C. Khanna and E. Truhlik},
journal= {arXiv preprint arXiv:nucl-th/9911022},
year = {2009}
}
Comments
26 pages with 1 figure, LaTeX, feynman, submitted to Nucl. Phys. A. A small grammatical change in Acknowledgments