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25–29 Oct 2021
Wangjiang Hotel
Asia/Shanghai timezone

Constraining EeV-Scale Dark Matter with Neutrino Observatories Using Tau Regeneration

26 Oct 2021, 18:00
20m
Wangjiang Hotel

Wangjiang Hotel

No.42 Xiashahepu Street, Jinjiang District, Chengdu City, Sichuan Province, China
oral Session 1

Speaker

Jeffrey Lazar (Harvard University)

Description

In 2016 and 2018, the ANITA collaboration reported the observation of two anomalous events, with polarizations consistent with up-going neutrinos, but coming from too far below the horizon to actually make it through the Earth given their energies. While all Standard Model (SM) explanations of these events have been ruled out, explanations from beyond Standard Model scenarios have been put forth in the literature, including scenarios in which these events arise from heavy dark matter decay to SM particles. In this contribution, we use tau neutrino regeneration to constrain one such explanation. Using ANTARES and IceCube public data, we look for an excess of neutrinos coming from this dark matter decaying in the Galactic Center and the Sun. Furthermore, we show the first accurate simulation of tau neutrino regeneration in the Sun.
Please choose the session this abstract belongs to Dark matter

Primary author

Jeffrey Lazar (Harvard University)

Presentation materials

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