Reheating Metastable O'Raifeartaigh Models
  In theories with multiple vacua, reheating to a temperature greater than the height of a barrier can stimulate transitions from a desirable metastable vacuum to a lower energy state. We discuss the constraints this places on various theories and demonstrate that in a class of supersymmetric models this transition does not occur even for arbitrarily high reheating temperature. 
Nathaniel J. Craig, Patrick J. Fox and Jay G. Wacker