Dortmund 2021 – scientific programme
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T: Fachverband Teilchenphysik
T 95: Searches for Dark Matter III
T 95.3: Talk
Thursday, March 18, 2021, 16:30–16:45, Tt
Constraints to the scotogenic dark matter model from indirect detection with neutrinos — •Raffaela Busse1, Thede de Boer2, Alexander Kappes1, Michael Klasen2, and Sybrand Zeinstra2 — 1Institut für Kernphysik, WWU Münster — 2Institut für Theoretische Physik, WWU Münster
As our solar system moves through the galactic halo, dark matter can be captured gravitationally in large celestial bodies, leading to a local over-density and therefore an increased neutrino flux upon annihilation. Here we present a study of neutrino signals from scalar WIMP annihilations in the Sun in the framework of the scotogenic minimal dark matter model, which extends the Standard Model by a scalar doublet and a fermion singlet with three generations. The scotogenic model is studied by means of two parameter scans for the IceCube South Pole Neutrino Observatory in its current IC86 configuration. One scan exploits the entire parameter space whereas for the other coannihilations between the scalar and fermions are enforced allowing for higher event rates. The scan results are compared to several experimental limits in order to identify viable points within the model that can produce a detectable neutrino flux in IceCube, and therefore could be used to constrain the scotogenic parameter space with a future IceCube data analysis.