On 5D Small Black Holes

Understand

Using higher order corrections we argue that five dimensional N=2 and N=4 small black holes exhibit supersymmetry enhancement in near horizon geometry leading to eight and sixteen supercharges, respectively.

• Using this enhancement at supergravity level we can identify the global supergroup of the near horizon geometry.
• In particular we show how this supergroup distinguishes between small and large black holes in N=2 case.