K. G. Gibbs
University of Chicago
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Featured researches published by K. G. Gibbs.
The Astrophysical Journal | 2001
T. Abu-Zayyad; K. Belov; D. J. Bird; J. Boyer; Z. Cao; M. Catanese; G. F. Chen; R. W. Clay; C. E. Covault; Hongyue Dai; B. R. Dawson; J. W. Elbert; B. E. Fick; L. Fortson; J. W. Fowler; K. G. Gibbs; Margaret Anderson Kennedy Glasmacher; K. D. Green; Y. Ho; Alan Guoming Huang; C. C. Jui; Matthew John Kidd; D. Kieda; B. C. Knapp; S. Ko; Christian Gronhoj Larsen; W. Lee; E. C. Loh; E. Mannel; J. Matthews
We study the spectrum and average mass composition of cosmic rays with primary energies between 10^{17} eV and 10^{18} eV using a hybrid detector consisting of the High Resolution Flys Eye (HiRes) prototype and the MIA muon array. Measurements have been made of the change in the depth of shower maximum as a function of energy. A complete Monte Carlo simulation of the detector response and comparisons with shower simulations leads to the conclusion that the cosmic ray intensity is changing f rom a heavier to a lighter composition in this energy range. The spectrum is consistent with earlier Flys Eye measurements and supports the previously found steepening near 4 \times 10^{17} eV .
Physical Review Letters | 2000
T. Abu-Zayyad; K. Belov; D. J. Bird; Joseph H. Boyer; Z. Cao; M. Catanese; G. F. Chen; R. W. Clay; C. E. Covault; J. Cronin; Hongyue Dai; B. R. Dawson; J. W. Elbert; B. E. Fick; L. Fortson; J. W. Fowler; K. G. Gibbs; Margaret Anderson Kennedy Glasmacher; K. D. Green; Y. Ho; Alan Guoming Huang; C. C. Jui; Matthew John Kidd; D. Kieda; B. C. Knapp; S. Ko; Christian Gronhoj Larsen; Wei-Po Lee; E. C. Loh; E. Mannel
The average mass composition of cosmic rays with primary energies between
arXiv: Astrophysics | 2000
T. Abu-Zayyad; K. Belov; D. J. Bird; J. Boyer; Z. Cao; Michael Anthony Catanese; G. F. Chen; R. W. Clay; C. E. Covault; Hongyue Dai; B. R. Dawson; J. W. Elbert; B. E. Fick; L. Fortson; J. W. Fowler; K. G. Gibbs; Margaret Anderson Kennedy Glasmacher; K. D. Green; Y. Ho; Alan Guoming Huang; C. C. Jui; Matthew John Kidd; D. Kieda; B. C. Knapp; S. Ko; Christian Gronhoj Larsen; W. Lee; E. C. Loh; E. Mannel; J. A. J. Matthews
10^{17}
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1994
A. Borione; C. E. Covault; J. Cronin; B. E. Fick; K. G. Gibbs; H. A. Krimm; N. C. Mascarenhas; T. A. McKay; D. Müller; B. J. Newport; R. A. Ong; L. J. Rosenberg; H. Sanders; Michael Anthony Catanese; D. Ciampa; K. D. Green; Jeffrey K. Kolodziejczak; J. Matthews; D. Nitz; D. Sinclair; J. C. van der Velde
eV and
Astroparticle Physics | 2001
T. Abu-Zayyad; K. Belov; D.J Bird; J. Boyer; Z. Cao; M Catanese; G. F. Chen; R. W. Clay; C. E. Covault; Hongyue Dai; B. R. Dawson; J. W. Elbert; B. E. Fick; L. Fortson; J. W. Fowler; K. G. Gibbs; Margaret Anderson Kennedy Glasmacher; K. D. Green; Y. Ho; Alan Guoming Huang; C. C. Jui; Matthew John Kidd; D. Kieda; B. C. Knapp; S. Ko; Christian Gronhoj Larsen; W. Lee; E. C. Loh; E. Mannel; J. Matthews
10^{18}
The Astrophysical Journal | 2003
I. de la Calle Perez; I. H. Bond; Patrick J. Boyle; S. M. Bradbury; J. H. Buckley; D. A. Carter-Lewis; O. Celik; Wei Cui; C. Dowdall; C. Duke; Abe D. Falcone; D. J. Fegan; S. J. Fegan; J. P. Finley; L. Fortson; J. A. Gaidos; K. G. Gibbs; S. Gammell; J. Hall; T. A. Hall; A. M. Hillas; J. Holder; D. Horan; M. Jordan; M. Kertzman; D. Kieda; J. Kildea; J. Knapp; K. Kosack; H. Krawczynski
eV has been studied using a hybrid detector consisting of the High Resolution Flys Eye (HiRes) prototype and the MIA muon array. Measurements have been made of the change in the depth of shower maximum,
Physical Review D | 1997
A. Borione; M. C. Chantell; C. E. Covault; J. Cronin; B. E. Fick; J. W. Fowler; L. Fortson; K. G. Gibbs; K. D. Green; B. J. Newport; R. A. Ong; S. Oser; L. J. Rosenberg; Michael Anthony Catanese; Margaret Anderson Kennedy Glasmacher; J. Matthews; D. Nitz; D. Sinclair; J. C. van der Velde; D. Kieda
X_{max}
The Astrophysical Journal | 1997
A. Borione; Michael Anthony Catanese; M. C. Chantell; C. E. Covault; J. Cronin; B. E. Fick; L. Fortson; J.F. Fowler; K. G. Gibbs; Margaret Anderson Kennedy Glasmacher; K. D. Green; D. Kieda; J. Matthews; B. J. Newport; D. Nitz; R. A. Ong; L. Rosenberg; D. Sinclair; J. C. van der Velde
, and in the change in the muon density at a fixed core location,
The Astrophysical Journal | 1997
A. Borione; Michael Anthony Catanese; M. C. Chantell; C. E. Covault; J. Cronin; B. E. Fick; L. Fortson; J.F. Fowler; K. G. Gibbs; Glasmacher; K. D. Green; D. Kieda; J. A. J. Matthews; B. J. Newport; D. Nitz; R. A. Ong; L. Rosenberg; D. Sinclair; J. C. van der Velde
\rho_\mu(600m)
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 1988
K. G. Gibbs
, as a function of energy. The composition has also been evaluated in terms of the combination of
