EAS-TOP: The cosmic ray anisotropy in the energy region E0 = 1014 ÷ 1015 eV

M. Aglietta, V. V. Alekseenko, B. Alessandro, P. Antonioli, F. Arneodo, L. Bergamasco, M. Bertaina, R. Bonino, A. Castellina, A. Chiavassa, B. D'ettorre Piazzoli, G. Di Sciascio, W. Fulgione, P. Galeotti, P. L. Ghia, M. Iacovacci, G. Mannocchi, C. Morello, G. Navarra, O. SaavedraG. C. Trinchero, S. Valchierotti, P. Vallania, S. Vernetto, C. Vigorito

Research output: Contribution to conferencePaperpeer-review


The amplitude and phase of the cosmic ray anisotropy are well established experimentally between 1011 eV and 1014 eV. The study of the evolution of the anisotropy over primary energy in the range 1014 - 1015 eV can provide a significant tool for the understanding of the knee in the primary spectrum. In this paper we extend the EAS-TOP result, obtained at E0 ≈ 1014 eV, to higher energies by using the full data set (8 years of data taking), and exploiting an analysis method, the "East-West" one, which is independent from detector and atmosphere effects. Results derived at 4 1014 eV from the harmonic analysis of the data in solar, sidereal and anti-sidereal time are presented and discussed.

Original languageEnglish (US)
Number of pages4
StatePublished - 2007
Event30th International Cosmic Ray Conference, ICRC 2007 - Merida, Yucatan, Mexico
Duration: Jul 3 2007Jul 11 2007


Other30th International Cosmic Ray Conference, ICRC 2007
CityMerida, Yucatan

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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