A Search for Point Sources of Cosmic Primary Rays Which Produce Single Muon Tracks at Ground Level
msra(2000)
摘要
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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关键词
point source,cosmic ray
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