What can we understand about the muon anomalies in high-energy showers from point sources?

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Abstract
We consider here the muon anomalies which have been claimed to be seen in high-energy air showers arising from point sources. We discuss what type of particle would be required to explain the experimental data and propose a generic class of models which can explain the data. Then we discuss accelerator-experiment limits on the existence of such a particle. In particular, we argue that such a particle need not have been seen yet in either neutrino experiments or in beam-dump experiments. We argue that neutrino experiments at 800 GeV provide perhaps the most sensitive test of our hypothesis in accelerator experiments. We present distinctive features of our model which should be observable in cosmic-ray experiments. Finally we discuss the problem of making an acceptable flux of cygnets at the compact x-ray source.

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