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The Baikal-GVD neutrino telescope collaboration reports observing the diffuse cosmic neutrino flux. Relying on cascade events produced predominantly by electron and tau neutrinos, they observe a significant excess of events over what is expected from the atmospheric neutrino background. The power law fit of the flux and the observation itself are consistent with and a significant independent confirmation of the landmark results of IceCube.
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Allakhverdyan et al. (2023) studied this question.
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