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Moduli mediation without moduli-induced gravitino problem
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DOI：10.1007/JHEP05(2016)178.png)
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Abstract
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We study the moduli-induced gravitino problem within the framework of the phenomenologically attractive mirage mediations. The huge amount of gravitino generated by the moduli decay can be successfully diluted by introducing an extra light modulus field which does not induce the supersymmetry breaking. Since the lifetime of extra modulus field becomes longer than usually considered modulus field, our proposed mechanism is applied to both the low- and high-scale supersymmetry breaking scenarios. We also point out that such an extra modulus field appears in the flux compactification of type II string theory.
Keywords:
Cosmology of Theories beyond the SM
Supergravity Models
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