“School of Physics”
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Paper IPM / P / 8729  


Abstract:  
Using higher order corrections we argue that five dimensional N = 2 and N = 4 small back 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.
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