Scales of String Theory
High Energy Physics - Theory
2009-10-31 v1 High Energy Physics - Phenomenology
Abstract
I review the arguments in favor of/against the traditional hypothesis that the Planck, string and compactification scales are all within a couple of orders of magnitude from each other. I explain how the extreme brane-world scenario, with TeV type I scale and two large (near millimetric) transverse dimensions, creates conditions analogous to those of the energy desert and is thus naturally singled out. I comment on the puzzle of gauge coupling unification in this context.
Keywords
Cite
@article{arxiv.hep-th/0001093,
title = {Scales of String Theory},
author = {C. Bachas},
journal= {arXiv preprint arXiv:hep-th/0001093},
year = {2009}
}
Comments
Talk given at the Strings 99 Conference (Potsdam, July 1999), latex file (9 pages), uses ioplppt.sty