• Corpus ID: 249062599

Phenomenological Motivation for Gravitational Positivity Bounds: A Case Study of Dark Sector Physics

@inproceedings{Noumi2022PhenomenologicalMF,
  title={Phenomenological Motivation for Gravitational Positivity Bounds: A Case Study of Dark Sector Physics},
  author={Toshifumi Noumi and Sota Sato and Junsei Tokuda},
  year={2022}
}
Positivity bounds on scattering amplitudes provide a necessary condition for a low-energy effective field theory to have a consistent ultraviolet completion. Their extension to gravity theories has been studied in the past years aiming at application to the swampland program, showing that positivity bounds hold at least approximately even in the presence of gravity. An issue in this context is how much negativity is allowed for a given scattering process. In this paper we address importance of… 
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Swampland Bounds on Dark Sectors
: We use Swampland principles to theoretically disfavor regions of the parameter space of dark matter and other darkly charged particles that may exist. The Festina Lente bound, the analogue of the…

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