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A Search for Point Sources of Cosmic Primary Rays Which Produce Single Muon Tracks at Ground Level

A. Roesch·J. Carpenter·S. Desch·J. Gress·T. F. Lin·J. Poirier
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Abstract

An increased data sample of identified secondary muons is collected at detection level. Project GRAND identifies secondary cosmic ray muons from electrons utilizing a thin steel absorber and tracking (PWC) chambers. The resulting angular resolution for the primary is about +/- 5 degrees. Since there is a 1.5% probability that a 100 GeV gamma primary will produce a single muon track at ground level, the high statistics allows a search for angular enhancements due to gammas. More than 100 billion muons are identified and analyzed. A table of stellar sources is examined.

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A. Roesch, J. Carpenter, S. Desch, J. Gress, T. F. Lin, J. Poirier. 2000-08-25. A Search for Point Sources of Cosmic Primary Rays Which Produce Single Muon Tracks at Ground Level. https://arxiv.org/abs/astro-ph/0008405

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