Seminar of Department of Theoretical Physics - Jacinto P. Neto (11.11.2025)

Tuesday 11.11.2025 at 14:00, Lecture room F2/125

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Jacinto P. Neto (Universität Wien & IPP, Brazil & Rio Grande do Norte U.):
Enabling Thermal Dark Matter within the Vanilla ℓµ – ℓτ Model

Abstract:
Thermal dark matter is a compelling setup that has been probed by a multitude of experiments, mostly in the GeV–TeV mass range. The thermal paradigm in the subGeV range is about to experience the same experimental test with the next generation of low-energy accelerators and light dark matter detectors. Motivated by this, we investigate thermal dark matter in the ℓµ – ℓτ and assess how the introduction of a matter-dominated era impacts the parameter that yields the correct relic density. Interestingly, we show that the projected experiments, such as MuSIC, FCC-ee, and LDMX, will probe a large region of the viable parameter space that yields the correct relic density. In the GeV–TeV mass regime, the usual large-scale detectors push the sensitivity. Our work highlights the rich interplay between early-universe dynamics, dark matter phenomenology, and the discovery potential of next-generation experiments.

 

 

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