Search for secluded dark matter with 6 years of IceCube data

Abstract

The IceCube neutrino observatory-installed in the Antarctic ice-is the largest neutrino telescope to date. It consists of 5,160 photomultiplier-tubes spread among 86 vertical strings making a total detector volume of more than a cubic kilometer. IceCube detects neutrinos via Cherenkov light emitted by charged relativistic particles produced when a neutrino interacts in or near the detector. The detector is particularly sensitive to high-energy neutrinos of due to its size and photosensor spacing. In this analysis we search for dark matter that annihilates into a metastable mediator that subsequently decays into Standard Model particles. These models yield an enhanced high-energy neutrino flux from dark matter annihilation inside the Sun compared to models without a mediator. Neutrino signals that are produced directly inside the Sun are strongly attenuated at higher energies due to interactions with the solar plasma. In the models considered here, the mediator can escape the Sun before producing any neutrinos, thereby avoiding attenuation. We present the results of an analysis of six years of IceCube data looking for dark matter in the Sun. We consider mediator lifetimes between 1 ms to 10 s and dark matter masses between 200 GeV and 75 TeV.

Measurement of high energy dark matter from the Sun at IceCube

“…The ref. [44] presents an analysis of neutrino signals due to the DM annihilation in the Sun with 6 years of IceCube data. This analysis has not found any significant indication of neutrinos due to the DM annihilation in the Sun.…”

DarkSUSY 6.3 – Freeze-in, out-of-equilibrium freeze-out, cosmic-ray upscattering and further new features

“…There are two interface functions that a particle physics module must provide for the freeze-in routines in the DarkSUSY core library to work: a subroutine dsrdparticles, providing kinematic information about (potentially 𝑇-dependent) thresholds and resonances, and a function dsanwx_finiteT returning the temperature-dependent effective invariant rate as defined in Eq. (12). Two example programs, examples/aux/FreezeIn_ScalarSinglet and examples/aux/FreezeIn_generic_fimp, illustrate the usage of the freeze-in routines for the Scalar Singlet model and a 'generic' FIMP model, respectively (where the latter implements a simplified contact-like interaction with |M | 2 ≡ 𝑐 𝑠/Λ 2 𝑛 ; for further details we refer to the manual and Ref.…”

“…Since then, DarkSUSY has been widely used in the community. Recent major applications include sensitivity studies for a DM signal from the Galactic center by the Cherenkov Telescope Array (CTA) collaboration [8], searches for DM-related gamma-rays from the sun by the HAWC [9] and Fermi [10] collaborations, as well as searches for neutrino signals with Super-Kamionkande [11] and Ice-Cube [12]; furthermore, DarkSUSY is one of the main backends that DarkBit [13] relies on, for PoS(CompTools2021)038 Torsten Bringmann its rate and relic density calculations, and as such decisive for the global fits performed by the GAMBIT collaboration [14,15]. At the same time, the code has seen further active development and new features added, warranting an updated description beyond what is regularly reported on the homepage.…”

News on Dark Matter from ICRC 2021

“…DM searches with neutrinos have been discussed also in [24,60,61,63,64]. [60] reported on a search for dark matter from the Earth with IceCube.…”