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

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

1995-12-22

arxiv.org/abs/hep-th/9512188v3

Phys.Lett.B375:98-102,1996

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, uses RevTeX (minor typos corrected, to appear in Phys. Lett. B)

Scientific paper

10.1016/0370-2693(96)00212-2

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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