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The Spectra of heterotic standard model vacua

Donagi, R., He, Y., Ovrut, B. A. and Reinbacher, R. (2005). The Spectra of heterotic standard model vacua. Journal of High Energy Physics, 0506(070), doi: 10.1088/1126-6708/2005/06/070

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.

Publication Type: Article
Additional Information: The original publication is available at http://iopscience.iop.org/1126-6708/2005/06/070/ archiveprefix: arXiv primaryclass: hep-th
Publisher Keywords: superstrings and heterotic strings, differential and algebraic geometry, superstring vacua
Subjects: Q Science > QC Physics
Departments: School of Mathematics, Computer Science & Engineering > Mathematics
URI: http://openaccess.city.ac.uk/id/eprint/853
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