Effective Actions Near Singularities: The STU-Model
High Energy Physics - Theory
2009-11-10 v2
Abstract
We derive the low energy effective action of the STU-model in four and five dimensions near the line T=U, where SU(2) gauge symmetry enhancement occurs. By `integrating in' the light W^{\pm} bosons together with their superpartners, the quantum corrected effective action becomes non-singular at T=U and manifestly SU(2) invariant. The four-dimensional theory is found to be consistent with modular invariance and the five-dimensional decompactification limit. This talk concisely summarizes results that have been obtained in collaboration with J. Louis and T. Mohaupt.
Cite
@article{arxiv.hep-th/0301126,
title = {Effective Actions Near Singularities: The STU-Model},
author = {Marco Zagermann},
journal= {arXiv preprint arXiv:hep-th/0301126},
year = {2009}
}
Comments
6 pages, LaTeX. Contribution to the proceedings of the 35th Symposium Ahrenshoop, Berlin, Germany, August 2002. v2: reference corrected, paper format adjusted