Average depth of shower maximum in “knee” region as measured by the Dual Imaging Cerenkov Experiment

Preliminary results on the average depth of shower maximum (〈 X max 〉) are presented using data from the Dual Imaging Cerenkov Experiment (DICE). A change in the cosmic ray spectral slope is detected and is in qualitative agreement with other experiments. A small increase in 〈 X max 〉 is present at...

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Bibliographic Details
Published in:Nuclear physics. Section B, Proceedings supplement Proceedings supplement, 1997, Vol.52 (3), p.166-168
Main Authors: Boothby, K., Chantell, M., Green, K.D., Kieda, D.B., Knapp, J., Larsen, C.G., Swordy, S.P.
Format: Article
Language:English
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Summary:Preliminary results on the average depth of shower maximum (〈 X max 〉) are presented using data from the Dual Imaging Cerenkov Experiment (DICE). A change in the cosmic ray spectral slope is detected and is in qualitative agreement with other experiments. A small increase in 〈 X max 〉 is present at onset of the “knee”, consistent with an increase in the relative number of lighter elements. Further analysis which incorporates data from the Chicago Air Shower Array and Michigan Array (CASA—MIA) will test this tentative interpretation.
ISSN:0920-5632
1873-3832
DOI:10.1016/S0920-5632(96)00866-3