Evaluation of expected solar flare neutrino events in the IceCube observatory

Wasseige, Gwenhaël de; Evenson, P. A.; Hanson, K.; Eijndhoven, N. van; Klein, Karl Ludwig

doi:10.48550/arxiv.1512.00204

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“…The sensitivity of IceCube to solar flare neutrinos has been estimated in 14 where it is shown that using DeepCore appears to be a promising way to detect solar flare neutrinos with energies above 100 MeV by searching for causally connected signal clusters within a predefined solar flare time window. However, even if a detection during an individual flare might be possible, a stacking of solar flare events will be more promising.…”

Section: Modelmentioning

confidence: 99%

On the Study of Solar Flares with Neutrino Observatories

Wasseige¹

2016

Preprint

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Since the end of the eighties, in response to a reported increase of the total neutrino flux in the Homestake experiment in coincidence with solar flares, neutrino detectors have searched for signals of neutrinos associated with solar flare activity. Protons which are accelerated by the magnetic structures of such flares may collide with the solar atmosphere, producing mesons which subsequently decay, resulting in neutrinos at O(MeV-GeV) energies. The study of such neutrinos would provide a new window on the underlying physics of the acceleration process. The sensitivity to solar flares of the IceCube Neutrino Observatory, located at the geographical South Pole, is currently under study. We introduce a new approach for a time profile analysis. This is based on a stacking method of selected solar flares which are likely to be connected with pion production. An initial approach towards a neutrino search using the current IceCube experiment as well as first efforts to improve the detection efficiency in the future are presented.

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Section: Modelmentioning

confidence: 99%