论文信息 - The High Resolution Fly's Eye - Status and Preliminary Results on Cosmic Ray Composition Above 1018 eV

The High Resolution Fly's Eye - Status and Preliminary Results on Cosmic Ray Composition Above 1018 eV

We describe the current status of the High Resolution Fly's Eye detector. Event reconstruction and associated systematics for stereo reconstruction are discussed and recent preliminary results on the study of the composition of ultra-high energy cosmic rays by the Xmax method are presented. These results indicate that the composition of cosmic rays becomes predominantly light near 1019 eV and beyond.

Pierre V. Sokolsky | P. Sokolsky

[1] J. W. Elbert,et al. Study of Broad-Scale Anisotropy of Cosmic-Ray Arrival Directions from 2 x 1017 to 1020 Electron Volts from Fly's Eye Data , 1999 .

[2] D. Al,et al. Detection of a Cosmic Ray with Measured Energy Well Beyond the Expected Spectral Cutoff due to Cosmic Microwave Radiation , 1994 .

[3] Pierre V. Sokolsky,et al. The Utah Fly's Eye detector , 1985 .

[4] J. W. Elbert,et al. The Cosmic ray energy spectrum observed by the Fly's Eye , 1994 .

[5] Paul M. Mantsch. The Pierre Auger Project: an overview , 2003, SPIE Astronomical Telescopes + Instrumentation.

[6] Julien H. Girard,et al. Geometry and optics calibration for air fluorescence detectors using star light , 2002 .

[7] Huang,et al. Evidence for changing of cosmic ray composition between 10(17) and 10(18) eV from multicomponent measurements , 2000, Physical review letters.