The energy spectrum of cosmic Hydrogen and Helium nuclei has been measured below the so-called "knee" by using a hybrid experiment with a wide field-of-view Cherenkov telescope and the Resistive Plate Chamber (RPC) array of the ARGO-YBJ experiment at 4300 m above sea level. The Hydrogen and Helium nuclei have been well separated from other cosmic ray components by using a multi-parameter technique. A highly uniform energy resolution of about 25% is achieved throughout the whole energy range (100-700 TeV)" The observed energy spectrum is compatible with a single power law with index gamma=-2.63 +/- 0.06.

Energy spectrum of cosmic protons and helium nuclei by a hybrid measurement at 4300 m a.s.l / Iuppa, Roberto; ARGO YBJ, Collaboration. - In: CHINESE PHYSICS C. - ISSN 1674-1137. - 38:4(2014), pp. 04500101-04500107. [10.1088/1674-1137/38/4/045001]

Energy spectrum of cosmic protons and helium nuclei by a hybrid measurement at 4300 m a.s.l

Iuppa, Roberto;
2014

Abstract

The energy spectrum of cosmic Hydrogen and Helium nuclei has been measured below the so-called "knee" by using a hybrid experiment with a wide field-of-view Cherenkov telescope and the Resistive Plate Chamber (RPC) array of the ARGO-YBJ experiment at 4300 m above sea level. The Hydrogen and Helium nuclei have been well separated from other cosmic ray components by using a multi-parameter technique. A highly uniform energy resolution of about 25% is achieved throughout the whole energy range (100-700 TeV)" The observed energy spectrum is compatible with a single power law with index gamma=-2.63 +/- 0.06.
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Iuppa, Roberto; ARGO YBJ, Collaboration
Energy spectrum of cosmic protons and helium nuclei by a hybrid measurement at 4300 m a.s.l / Iuppa, Roberto; ARGO YBJ, Collaboration. - In: CHINESE PHYSICS C. - ISSN 1674-1137. - 38:4(2014), pp. 04500101-04500107. [10.1088/1674-1137/38/4/045001]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/162655
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