Thermal gravitino production and collider tests of leptogenesis

By J. Pradler, F. Steffen. 2006

318 citations recorded by the source corpus.

Considering gravitino dark matter scenarios, we obtain the full gauge-invariant result for the relic density of thermally produced gravitinos to leading order in the standard model gauge couplings. For the temperatures required by thermal leptogenesis, we find gaugino mass bounds which will be probed at future colliders. We show that a conceivable determination of the gravitino mass will allow for a unique test of the viability of thermal leptogenesis in the laboratory.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/da0a53ee40e76adc0f7965c65d2bb315fdfb0168

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Citations in the corpus

Gravitino dark matter in R-parity breaking vacua (2007, background): “This reheating temperature implies m3/2 >∼ 5 GeV for a gluino mass of mg̃ = 500 GeV in order to avoid overclosure of the universe due to thermal gravitino production [15, 16]2.”
Lyman-alpha constraints on warm and on warm-plus-cold dark matter models (2008, background): “[73, 74, 75]), and then non-thermally through the late decay of the next-tolightest supersymmetric particle (see e.”
WIMP dark matter candidates and searches—current status and future prospects (2017, methodology): “This greatly relaxes the standard thermal WIMP paradigm, as has been shown in the case of axinos [64, 65, 80] (for a recent review see [81]) and gravitinos [59, 62, 63] both of which belong to the class of EWIMPs.”