Superheavy supersymmetry from scalar mass ??? A parameter fixed points

Abstract In supersymmetric models, the well-known tension between naturalness and experimental constraints is relieved if the squarks and sleptons of the first two generations are superheavy, with masses m heavy ≳10 TeV , and all other superpartners are light, with masses m light ≲1 TeV . We show that even if all scalar masses and trilinear A parameters are of order m heavy at some high scale, a hierarchy of m heavy 2 / m light 2 ∼400 may be generated dynamically through renormalization group evolution. The required high energy relations are consistent with grand unification, or, alternatively, may be realized in moduli-dominated supersymmetry-breaking scenarios.