Evidence for Changing of Cosmic Ray Composition between 10¹⁷ and 10¹⁸ eV from Multicomponent Measurements

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T. Abu-Zayyad¹, K. Belov¹, D. J. Bird⁵, J. Boyer⁴, Z. Cao¹, M. Catanese³, G. F. Chen¹, R. W. Clay⁵, C. E. Covault², J. W. Cronin², H. Y. Dai¹, B. R. Dawson⁵, J. W. Elbert¹, B. E. Fick², L. F. Fortson^{2 *}, J. W. Fowler², K. G. Gibbs², M. A. K. Glasmacher⁷, K. D. Green², Y. Ho¹⁰, A. Huang¹, C. C. Jui¹, M. J. Kidd⁶, D. B. Kieda¹, B. C. Knapp⁴, S. Ko¹, C. G. Larsen¹, W. Lee¹⁰, E. C. Loh¹, E. J. Mannel⁴, J. Matthews⁹, J. N. Matthews¹, B. J. Newport², D. F. Nitz⁸, R. A. Ong², K. M. Simpson⁵, J. D. Smith¹, D. Sinclair⁶, P. Sokolsky¹, P. Sommers¹, C. Song¹⁰, J. K. K. Tang¹, S. B. Thomas¹, J. C. van der Velde⁷, L. R. Wiencke¹, C. R. Wilkinson⁵, S. Yoshida¹, and X. Z. Zhang^10
1High Energy Astrophysics Institute, University of Utah, Salt Lake City, Utah 84112
²Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637
³Smithsonian Astrophysics Observatory, Cambridge, Massachusetts 02138
⁴Nevis Laboratory, Columbia University, Irvington, New York 10533
⁵University of Adelaide, Adelaide S.A. 5005 Australia
⁶University of Illinois at Champaign-Urbana, Urbana, Illinois 61801
⁷University of Michigan, Ann Arbor, Michigan 48109
⁸Department of Physics, Michigan Technical University, Houghton, Michigan 49931
⁹Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803 and Department of Physics, Southern University, Baton Rouge, Louisiana 70801
¹⁰Department of Physics, Columbia University, New York, New York 10027

Erratum: T. Abu-Zayyad et al., Erratum: Evidence for Changing of Cosmic Ray Composition between 10¹⁷ and 10¹⁸ eV from Multicomponent Measurements [Phys. Rev. Lett. 84, 4276 (2000)], Phys. Rev. Lett. 85, 1347 (2000)