Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/47607
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Observation of the suppression of the flux of cosmic rays above 4×10¹⁹ eV |
Other Titles: | Observation of the suppression of the flux of cosmic rays above 4x10(19) eV |
Author: | Abraham, J. Abreu, P. Aglietta, M. Aguirre, I. Allard, D. Allekotte, I. Allen, J. Allison, P. Alvarez-Muniz, J. Ambrosio, M. Anchordoqui, L. Andringa, S. Anzalone, A. Aramo, C. Argiro, S. Arisaka, K. Armengaud, E. Arneodo, F. Arqueros, F. Asch, T. et al. |
Citation: | Physical Review Letters, 2008; 101(6):061101-1-061101-7 |
Publisher: | American Physical Soc |
Issue Date: | 2008 |
ISSN: | 0031-9007 1079-7114 |
Statement of Responsibility: | J. Abraham...R. W. Clay...B. R. Dawson... et al. (The Pierre Auger Collaboration) |
Abstract: | The energy spectrum of cosmic rays above 2.5×1018eV, derived from 20000 events recorded at the Pierre Auger Observatory, is described. The spectral index γ of the particle flux, JE-γ, at energies between 4×1018eV and 4×1019eV is 2.69±0.02(stat)±0.06(syst), steepening to 4.2±0.4(stat)±0.06(syst) at higher energies. The hypothesis of a single power law is rejected with a significance greater than 6 standard deviations. The data are consistent with the prediction by Greisen and by Zatsepin and Kuz'min. |
Keywords: | Pierre Auger Collaboration |
Rights: | ©2008 American Physical Society |
DOI: | 10.1103/PhysRevLett.101.061101 |
Grant ID: | ARC MSMT-CR LA08016 LC527 1M06002 |
Published version: | http://dx.doi.org/10.1103/physrevlett.101.061101 |
Appears in Collections: | Aurora harvest Physics publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
hdl_47607.pdf | Published version | 268.08 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.