Phenomenological viability of string and M-theory scenarios
Abstract
We analyze the constraints that a correct phenomenology and the absence of dangerous charge and color breaking (CCB) minima or unbounded from below (UFB) directions impose on the parameter space of different superstring and M-theory scenarios. Namely, we analyze in detail the case where supersymmetry (SUSY) breaking is driven by non-vanishing dilaton and/or moduli F-terms in weakly and strongly coupled strings, and the specific case where the mechanism of SUSY breaking is gaugino condensation with or without the participation of non-perturbative contributions to the K{\"a}hler potential. The results indicate that, only in some small windows of the parameter space all the previous tests are succesfully passed. We also discuss the impact of non-universality of the soft breaking terms on CCB/UFB bounds.
Keywords
Cite
@article{arxiv.hep-ph/9810266,
title = {Phenomenological viability of string and M-theory scenarios},
author = {J. A. Casas and A. Ibarra and C. Muñoz},
journal= {arXiv preprint arXiv:hep-ph/9810266},
year = {2009}
}
Comments
18 pages + 10 figures, PostScript file