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Kieda, David B. | Evidence for changing of cosmic ray composition between 10(17) and 10(18) eV from multicomponent measurements | The average mass composition of cosmic rays with primary energies between 1017 and 1018 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 the ... | Cosmic rays; Particle energy; Muon array | 2000 |
| 2 |
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Kieda, David B. | Limits on the isotropic diffuse flux of ultrahigh energy gamma radiation | Diffuse ultrahigh energy g radiation can arise from a variety of astrophysical sources, including the interaction of 1020 eV cosmic rays with the 2.7 K microwave background radiation or the collapse of topological defects created in the early Universe. We describe a sensitive search for diffuse g ... | G rays; Ultrahigh energy; Muons; Cosmic rays | 1997 |
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