Quantum Corrections in Two-Dimensional Non-Supersymmetric Heterotic Strings
Abstract
We study quantum corrections for a family of 24 non-supersymmetric heterotic strings in two dimensions. We compute their genus two cosmological constant using the hyperelliptic formalism and the genus one two-point functions for the massless states. From here we get the mass corrections to the states in the massless sector and discuss the role of the infrared divergences that appear in the computation. We also study some tree-level aspects of these theories and find that they are classified not only by the corresponding Niemeier lattice but also by their {\it hidden} right-moving gauge symmetry.
Keywords
Cite
@article{arxiv.hep-th/9511149,
title = {Quantum Corrections in Two-Dimensional Non-Supersymmetric Heterotic Strings},
author = {M. A. R. Osorio and M. A. Vazquez-Mozo},
journal= {arXiv preprint arXiv:hep-th/9511149},
year = {2009}
}
Comments
Minor changes. The discussion on the infrared divergences has been expanded and typos have been corrected. Final version to be published in Nucl. Phys. B. 40 pages. LaTeX, epsf. 4 Postscript figures in uuencoded file