Bounds on Dark Matter from the ``Atmospheric Neutrino Anomaly''

Bounds are derived on the cross section, flux and energy density of new particles that may be responsible for the atmospheric neutrino anomaly. $4.6 \times 10^{-45} cm^2 < σ<2.4 \times 10^{-34} cm^2$ Decay of primordial homogeneous dark matter can be excluded.

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