Search for secluded dark matter with 6 years of IceCube data

18 may. 2021 18:20
20m
Valencia

Valencia

VLVnT 2021 | Parallel Session Room C https://cern.zoom.us/j/69737018748
Dark matter and exotics Dark matter and exotics

Ponente

Dr. Christoph Tönnis (Sungkyunkwan University)

Descripción

The IceCube neutrino observatory consists of 5160 photomultiplier-tubes spread among 86 vertical strings making a total
detector volume of more than a cubic kilometer. It detects neutrinos via Cherenkov light of
charged relativistic particles from neutrino interactions with the detector volume. In this
analysis we search for secluded dark matter which annihilates into metastable mediator particles that subsequently
decay into neutrinos. Regular signals from dark matter annihilations in
the Sun are strongly attenuated at higher energies due
to absorption in the solar plasma. Secluded dark matter models allow the mediator to escape
the Sun before producing any neutrinos, thereby avoiding attenuation and yielding an enhanced neutrino signal. IceCube is ideal to search
for this enhanced high-energy neutrino signal due to its good sensitivity to high energy neutrinos. We present the sensitivities of an analysis of six
years of IceCube data looking for dark matter in the Sun. Mediator lifetimes between
1 ms to 10 s and dark matter masses between 100 GeV and 75 TeV are considered in this analysis.

Affiliation Sungkyunkwan university

Autor primario

Dr. Christoph Tönnis (Sungkyunkwan University)

Materiales de la presentación

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