Electroweak Contributions to Thermal Gravitino Production

Details Electroweak Contributions to Thermal Gravitino Production Electroweak Contributions to Thermal Gravitino Production

2007-08-21

arxiv.org/abs/0708.2786v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

101 pages; diploma thesis; University of Vienna, Austria; Oct.2006

Scientific paper

At high temperatures, gravitinos are generated in inelastic scattering processes with particles that are in thermal equilibrium with the hot primordial plasma. We consider the regeneration of gravitinos that starts with completion of reheating after inflation. Following a consistent finite-temperature approach, we provide the complete result for the gravitino production rate to leading order in the gauge couplings. Focusing on gravitino dark matter scenarios we compute the relic density of thermally produced gravitinos. Moreover, we show that a conceivable determination of the gravitino mass at future colliders will allow for a unique test of the viability of thermal leptogenesis in the laboratory.

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