The Spectra of heterotic standard model vacua

Donagi, R., He, Y., Ovrut, B. A. & 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

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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.

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

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