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arXiv · 1311.4797

N=2 higher-derivative couplings from strings

Stefanos Katmadas·Ruben Minasian
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Abstract

We consider the Calabi-Yau reduction of the Type IIA eight derivative one-loop stringy corrections focusing on the couplings of the four dimensional gravity multiplet with vector multiplets and a tensor multiplet containing the NS two-form. We obtain a variety of higher derivative invariants generalising the one-loop topological string coupling, $F_1$, controlled by the lowest order Kahler potential and two new non-topological quantities built out of the Calabi-Yau Riemann curvature.

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Stefanos Katmadas, Ruben Minasian. 2013-11-19. N=2 higher-derivative couplings from strings. https://doi.org/10.1007/jhep02(2014)093

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