A note on the nature of the primary cosm
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Thomas H. Johnson
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Article
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1939
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Elsevier Science
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English
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The most recent estimates of the composition of the primary radiation based upon the asymmetry and the latitude effect leave but a small margin for negatives and the most probable result is that all of the field-sensitive intensity at sea level is due to positives. Defining fl =-(j+ + j-)/(j+ --j-),