A standard model from the E(8) x E(8) heterotic superstring

Braun, V., He, Y., Ovrut, B. A. & Pantev, T. (2005). A standard model from the E(8) x E(8) heterotic superstring. Journal of High Energy Physics, 0506(039), doi: 10.1088/1126-6708/2005/06/039

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In a previous paper, we introduced a heterotic standard model and discussed its basic properties. This vacuum has the spectrum of the MSSM with one additional pair of Higgs-Higgs conjugate fields and a small number of uncharged moduli. In this paper, the requisite vector bundles are formulated; specifically, stable, holomorphic bundles with structure group SU(N) on smooth Calabi-Yau threefolds with Z_3 x Z_3 fundamental group. A method for computing bundle cohomology is presented and used to evaluate the cohomology groups of the standard model bundles. It is shown how to determine the Z_3 x Z_3 action on these groups. Finally, using an explicit method of "doublet-triplet splitting", the low-energy particle spectrum is computed.

Item Type: Article
Additional Information: The original publication is available at http://iopscience.iop.org/1126-6708/2005/06/039/ archiveprefix: arXiv primaryclass: hep-th
Subjects: Q Science > QC Physics
Divisions: School of Engineering & Mathematical Sciences > Department of Mathematical Science
URI: http://openaccess.city.ac.uk/id/eprint/856

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