Threshold corrections in \(K3\times T^2\) heterotic string compactifications

DOI10.1016/S0550-3213(96)00549-4zbMATH Open0925.81223arXivhep-th/9608145MaRDI QIDQ1816780

Author name not available (Why is that?)

Publication date: 28 November 1996

Published in: (Search for Journal in Brave)

Abstract: We consider compactifications of the heterotic string on

K 3 i m e s T 2

so that the resulting theory in

d = 4

space-time dimensions has

N = 2

supersymmetry. The gravitational and gauge coupling constants of the low-energy effective theory receive threshold corrections from loops of super-heavy string states. We calculate these corrections for the case when the

K 3

-surface is a

orbifold of a four torus

T 4

. The results are used to determine the one-loop prepotential

{c a l F}_{0}^{(1)}

for the vector multiplets and the gravitational coupling

{c a l F}_{1}^{(1)}

.

Full work available at URL: https://arxiv.org/abs/hep-th/9608145

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