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arXiv · 1301.5031

Enhanced supersymmetry from vanishing Euler number

Amir-Kian Kashani-Poor·Ruben Minasian·Hagen Triendl
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Abstract

We argue that compactifications on Calabi-Yau threefolds with vanishing Euler number yield effective four dimensional theories exhibiting (spontaneously broken) N=4 supersymmetry. To this end, we derive the low-energy effective action for general SU(2) structure manifolds in type IIA string theory and show its consistency with gauged N=4 supergravity. Focusing on the special case of Calabi-Yau manifolds with vanishing Euler number, we explain the absence of perturbative corrections at the two-derivative level. In addition, we conjecture that all non-perturbative corrections are governed and constrained by the couplings of N=4 massive gravitino multiplets.

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Amir-Kian Kashani-Poor, Ruben Minasian, Hagen Triendl. 2013-01-21. Enhanced supersymmetry from vanishing Euler number. https://doi.org/10.1007/jhep04(2013)058

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