Witten-Veneziano from Green-Schwarz
High Energy Physics - Theory
2009-11-10 v2 High Energy Physics - Lattice
High Energy Physics - Phenomenology
Abstract
We consider the U(1) problem within the AdS/CFT framework. We explain how the Witten-Veneziano formula for the eta' mass is related to a generalized Green-Schwarz mechanism. The closed string mode, that cancels the anomaly of the gauged U(1) axial symmetry, is identified with the eta' meson. In a particular set-up of D3-branes on a C3/(Z3xZ3) orbifold singularity, the eta' meson is a twisted-sector R-R field.
Keywords
Cite
@article{arxiv.hep-th/0404248,
title = {Witten-Veneziano from Green-Schwarz},
author = {Adi Armoni},
journal= {arXiv preprint arXiv:hep-th/0404248},
year = {2009}
}
Comments
10 pages, LaTex. 1 eps figure. v2: minor changes, refs. added, to appear in JHEP