Heterotic moduli, the double extension and the alpha'^2 metric

Jock McOrist, Qianhe Yin

We compute the heterotic moduli-space metric through $\hat{I}{\pm }^{\prime 2}$ for backgrounds admitting a smooth $\hat{I}{\pm }^{\prime }\to 0$ limit. The Kaehler potential is unchanged to this order, but the metric re…