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arXiv · hep-th/9512188

Massless BPS-Saturated States on the Two-Torus Moduli Sub-Space of Heterotic String

Kwan-Leung Chan·Mirjam Cvetic
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Abstract

Within a four-dimensional, toroidally compactified heterotic string, we identify (quantized) charge vectors of electrically charged BPS-saturated states (along with the tower of SL(2,Z) related dyonic states), which preserve 1/2 of N=4 supersymmetry and become massless along the hyper-surfaces of enhanced gauge symmetry of the two-torus moduli sub-space. In addition, we identify charge vectors of the dyonic BPS-saturated states (along with the tower of SL(2,Z) related states), which preserve 1/4 of N=4 supersymmetry, and become massless at two points with the maximal gauge symmetry enhancement.

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Kwan-Leung Chan, Mirjam Cvetic. 1996-02-29. Massless BPS-Saturated States on the Two-Torus Moduli Sub-Space of Heterotic String. https://doi.org/10.1016/0370-2693(96)00212-2

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