Evidence for Changing of Cosmic Ray Composition between 10**17-eV and 10**18-eV from Multicomponent Measurements
Nov, 1999Citations per year
Abstract: (arXiv)
The average mass composition of cosmic rays with primary energies between eV and eV has been studied using a hybrid detector consisting of the High Resolution Fly's Eye (HiRes) prototype and the MIA muon array. Measurements have been made of the change in the depth of shower maximum, , and in the change in the muon density at a fixed core location, , as a function of energy. The composition has also been evaluated in terms of the combination of and . The results show that the composition is changing from a heavy to lighter mix as the energy increases.Note:
- 14 pages including 3 figures in revtex epsf style, submited to PRL
- 96.40.De
- 96.40.Pq
- 98.70.Sa
- 95.55.Vj
- cosmic radiation: primary
- elements: cosmic radiation
- energy dependence
- showers: air
- showers: spatial distribution
- muon: cosmic radiation
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