The Spectra of Heterotic Standard Model Vacua
High Energy Physics - Theory
2009-11-10 v1 Algebraic Geometry
Abstract
A formalism for determining the massless spectrum of a class of realistic heterotic string vacua is presented. These vacua, which consist of SU(5) holomorphic bundles on torus-fibered Calabi-Yau threefolds with fundamental group Z_2, lead to low energy theories with standard model gauge group (SU(3)_C x SU(2)_L x U(1)_Y)/Z_6 and three families of quarks and leptons. A methodology for determining the sheaf cohomology of these bundles and the representation of Z_2 on each cohomology group is given. Combining these results with the action of a Z_2 Wilson line, we compute, tabulate and discuss the massless spectrum.
Keywords
Cite
@article{arxiv.hep-th/0411156,
title = {The Spectra of Heterotic Standard Model Vacua},
author = {Ron Donagi and Yang-Hui He and Burt A. Ovrut and Rene Reinbacher},
journal= {arXiv preprint arXiv:hep-th/0411156},
year = {2009}
}
Comments
41+1pp, 2 figs