Gauge and Gravitational Couplings from Modular Orbits in Orbifold Compactifications

Details Gauge and Gravitational Couplings from Modular Orbits in Orbifold Compactifications Gauge and Gravitational Couplings from Modular Orbits in Orbifold Compactifications

2000-01-11

arxiv.org/abs/hep-th/0001062v1

Phys.Lett.B477:313-324,2000

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, LaTex

Scientific paper

10.1016/S0370-2693(00)00208-2

We discuss the appearance of modular functions at the one-loop gauge and gravitational couplings in (0,2) non-decomposable N=1 four dimensional orbifold compactifications of the heterotic string. We define the limits for the existence of states causing singularities in the moduli space in the perturbative regime for a generic vacuum of the heterotic string. The "proof" provides evidence for the explanation of the stringy Higgs effect.

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