Measurement of the ultra high energy cosmic ray energy spectrum with the Pierre Auger Observatory

被引：2
作者：
Rodriguez, G. [1 ]
机构：
[1] INFN Roma Tor Vergata, Rome, Italy
[2] Pierre Auger Observ, RA-5613 Malargue, Argentina
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2014年 / 742卷
关键词：
Ultrahigh energy cosmic rays; Energy spectrum; GZK cutoff; Pierre Auger Observatory; AIR;
D O I：
10.1016/j.nima.2013.11.032
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We report a measurement of the cosmic ray energy spectrum based on a large amount of data collected by the Pierre Auger Observatory. This measurement combines data from the fluorescence (FD) and surface (SD) detectors of the Observatory and does not rely on detailed numerical simulation or any assumption about the chemical composition. The energy calibration of the observables, which exploits the correlation of surface detector data with fluorescence measurements in hybrid events, is presented in detail. Besides presenting statistical uncertainties, we address the impact of systematic uncertainties. We also summarize the combined energy spectrum obtained when hybrid data are used to extend the spectrum to lower energies. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：261 / 264
页数：4
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