Moduli decays and gravitinos

By M. Dine, R. Kitano, A. Morisse, Y. Shirman. 2006

179 citations recorded by the source corpus.

One proposed solution of the moduli problem of string cosmology requires that the moduli are quite heavy, their decays reheating the Universe to temperatures above the scale of nucleosynthesis. In many of these scenarios, the moduli are approximately supersymmetric; it is then crucial that the decays to gravitinos are helicity suppressed. In this paper, we discuss situations where these decays are, and are not, suppressed. We also comment on a possible gravitino problem from inflaton decay.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/aa2fc91fe573b81c1ba3f4f5c720b4ff15a2149b

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Citations in the corpus

In wino veritas? Indirect searches shed light on neutralino dark matter (2013, background): “As a result, the data appears to be forcing us into a special corner of model space in which moduli decays to gravitinos are suppressed [79, 81].”
Non-Thermal Dark Matter and the Moduli Problem in String Frameworks (2008, background): “There could be an additional suppression in special cases as discussed in [12, 7].”
From Linear SUSY to Constrained Superfields (2009, background): “g [1-23], a simple and transparent presentation of the subject is still lacking.”