Article ID Journal Published Year Pages File Type
1849597 Nuclear Physics B - Proceedings Supplements 2008 4 Pages PDF
Abstract

In this paper, the energy spectrum of UHECR with energy above 1018.2eV has been measured with HiRes detector in stereo mode. The cosmic ray events reconstruction has been presented briefly. A new direction reconstruction method has been introduced. The resolution of arrival direction is about 0.44 degree and the energy resolution is about 10%. The detector aperture is studied in detail, and an aerosol free aperture is given. At last, the result on the UHECR spectrum is presented and its uncertainty is discussed.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics