We discuss a possibility of restricting parameters in N=2 supergravity based on axion observations. We, accordingly, derive conditions that prepotential and gauge couplings should satisfy. Such conditions not only allow… Click to show full abstract
We discuss a possibility of restricting parameters in N=2 supergravity based on axion observations. We, accordingly, derive conditions that prepotential and gauge couplings should satisfy. Such conditions not only allow us to constrain the theory but also provide the lower bound of the N=2→N=1 breaking scale.
               
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