Non-supersymmetric black holes with ${\alpha }^{\prime }$ corrections

Pablo A. Cano, Tomás Ortín, Alejandro Ruipérez +1

We study extremal 5- and 4-dimensional black hole solutions of the Heterotic Superstring effective action at first order in ${\alpha }^{\prime }$ with, respectively, 3 and 4 charges of arbitrary si…