Feb 18 – 26, 2021
Europe/Rome timezone

Probing Kaon-Decay-at-Rest (KDAR) in the Sun with the Deep Underground Neutrino Experiment (DUNE)

Not scheduled


Parallel Flash talk Neutrino Telescopes and Multimessenger


Olexiy Dvornikov (University of Hawaii)


The observation of 236 MeV muon neutrinos from kaon-decay-at-rest (KDAR)
originating in the core of the Sun would provide a unique signature of dark matter annihilation.
Since excellent angle and energy reconstruction are necessary to detect this monoenergetic,
directional neutrino flux, DUNE with its vast volume and reconstruction capabilities, is a promising
candidate for a KDAR neutrino search. In this talk, we will present a preliminary study in which
we evaluate the proposed KDAR neutrino search strategies by realistically modeling both neutrinonucleus
interactions and the response of DUNE. Although reconstruction of the neutrino energy and
direction is difficult with current techniques in the relevant energy range, the superb energy
resolution, angular resolution, and particle identification offered by DUNE can still permit great
signal/background discrimination. Moreover, there are non-standard scenarios in which searches at
DUNE for KDAR in the Sun can probe dark matter interactions.

Collaboration name Deep Underground Neutrino Experiment (DUNE)

Primary author

Olexiy Dvornikov (University of Hawaii)

Presentation materials

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