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arXiv · hep-th/0403291

Moduli Dependent Spectra of Heterotic Compactifications

Ron Donagi·Yang-Hui He·Burt A. Ovrut·Rene Reinbacher
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Abstract

Explicit methods are presented for computing the cohomology of stable, holomorphic vector bundles on elliptically fibered Calabi-Yau threefolds. The complete particle spectrum of the low-energy, four-dimensional theory is specified by the dimensions of specific cohomology groups. The spectrum is shown to depend on the choice of vector bundle moduli, jumping up from a generic minimal result to attain many higher values on subspaces of co-dimension one or higher in the moduli space. An explicit example is presented within the context of a heterotic vacuum corresponding to an SU(5) GUT in four-dimensions.

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Ron Donagi, Yang-Hui He, Burt A. Ovrut, Rene Reinbacher. 2004-04-18. Moduli Dependent Spectra of Heterotic Compactifications. https://doi.org/10.1016/j.physletb.2004.08.010

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