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Moduli dependent spectra of heterotic compactifications

Donagi, R., He, Y., Ovrut, B. A. and Reinbacher, R. (2004). Moduli dependent spectra of heterotic compactifications. Physics Letters B, 598, pp. 279-284. doi: 10.1016/j.physletb.2004.08.010

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.

Publication Type: Article
Additional Information: archiveprefix: arXiv primaryclass: hep-th
Subjects: Q Science > QC Physics
Departments: School of Mathematics, Computer Science & Engineering > Mathematics
URI: http://openaccess.city.ac.uk/id/eprint/849
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