A Measurement of the UHECR Spectrum with the HiRes FADC Detector
نویسنده
چکیده
We have measured the energy spectrum of ultra-high energy cosmic rays (UHECR) with the HiRes FADC detector (HiRes-2) in monocular mode. A detailed Monte Carlo simulation of the detector response to air showers has been used to calculate the energy dependent acceptance of the air fluorescence detector. The measured spectrum complements the measurement by the HiRes-1 detector down to lower energies. Systematic effects of the assumed input spectrum and composition on the aperture are presented, as well as systematics due to the atmosphere.
منابع مشابه
Studies of Systematic Uncertainties in the HiRes - II Measurement of the UHECR Spectrum
Presenter: A. Zech ([email protected]), fra-zech-A-abs1-he14-poster We present studies of systematic uncertainties in the measurement of the ultra-high energy cosmic ray (UHECR) spectrum with the FADC detector of the High Resolution Fly's Eye experiment (HiRes-II). One source of uncertainties lies in the simulation of the energy dependent aperture of the air fluorescence detector. We study...
متن کاملar X iv : a st ro - p h / 02 08 30 1 v 1 1 5 A ug 2 00 2 Measurement of the Spectrum of UHE Cosmic Rays by the FADC Detector of the HiRes Experiment
Preprint submitted to Elsevier Preprint 17 February 2008 We have measured the spectrum of UHE cosmic rays using the flash ADC (FADC) detector (called HiRes-II) of the High Resolution Fly’s Eye experiment running in monocular mode. We describe in detail the data analysis, development of the Monte Carlo simulation program, and results. We also describe the results of our other detector, HiRes-I. ...
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