Superconformal anomaly free models in D=4
High Energy Physics - Theory
2007-05-23 v3
Abstract
A family of modified heterotic string models in D=4 is constructed in which the strings incorporate flux tubes which may in special cases support a local spacetime superconformal symmetry consistent with quantum mechanics. There is an intrinsic Goldstino multiplet, so that supersymmetry breaking can be driven by any process that generates a non-zero value for the superpotential. The superconformal anomaly freedom of these models may be related to a naturally vanishing . The charge of such models may also play a role in producing a generation-ordered fermion spectrum. \
Cite
@article{arxiv.hep-th/0307157,
title = {Superconformal anomaly free models in D=4},
author = {Michael Hewitt},
journal= {arXiv preprint arXiv:hep-th/0307157},
year = {2007}
}
Comments
8 pages, Latex. v3. First section rewritten to use $R$ anomaly cancellation between level zero states without Chern-Simons branes