Improved BFT embedding having chain-structure
arXiv:hep-th/0508022 · doi:10.1016/j.physletb.2005.10.028
Abstract
We newly revisit the gauge non-invariant chiral Schwinger model with a=1 in view of the chain structure. As a result, we show that the Dirac brackets can be easily read off from the exact symplectic algebra of second-class constraints. Furthermore, by using an improved BFT embedding preserving the chain structure, we obtain the desired gauge invariant action including a new type of Wess-Zumino term.
15 pages, LaTeX file