Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1845947 | Nuclear Physics B - Proceedings Supplements | 2009 | 4 Pages |
Abstract
Characteristics of air-shower-triggered atmospheric families detected in the hybrid experiments together with emulsion chamber and AS-array at high mountains are compared with those of simulations. The analysis of families accompanied by air-showers with Ne≥107 shows that the experimental family-energy distribution favors a proton-dominant chemical composition of primary cosmic-rays but the lateral distribution favors a heavy-dominant composition. Thus no simulations can describe the overall characteristics of the data of hybrid experiments.
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