The study of the evolution of the amplitude and phase of the cosmic ray anisotropy into the energy region 10(14) – 10(16) eV can provide a significant tool for the understanding of the "knee" of the primary spectrum. We extend here the EAS-TOP measurement performed at E0 ~ 10(14) eV, to higher energies by using the full data set (8 years). Results derived at about 10(14) and 4 centerdot 10(14) eV are compared and discussed. Hints of increasing amplitude and change of phase above 10(14) eV are reported.
Evolution of the cosmic ray anisotropy above 10(14) eV / Ghia, Piera L.; Iacovacci, M.; D'Ettorre, B.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 203:(2010), p. 012126. [10.1088/1742-6596/203/1/012126]
Evolution of the cosmic ray anisotropy above 10(14) eV
M. Iacovacci;B. D'Ettorre
2010
Abstract
The study of the evolution of the amplitude and phase of the cosmic ray anisotropy into the energy region 10(14) – 10(16) eV can provide a significant tool for the understanding of the "knee" of the primary spectrum. We extend here the EAS-TOP measurement performed at E0 ~ 10(14) eV, to higher energies by using the full data set (8 years). Results derived at about 10(14) and 4 centerdot 10(14) eV are compared and discussed. Hints of increasing amplitude and change of phase above 10(14) eV are reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
