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 γ =−2.63±0.06
Mari, S.M., The ARGO YBJ, C., The LHAASO, C. (2014). Energy spectrum of cosmic protons and helium nuclei by a hybrid measurement at 4300 m a.s.l. CHINESE PHYSICS C, 38, 045001 [10.1088/1674-1137/38/4].
Energy spectrum of cosmic protons and helium nuclei by a hybrid measurement at 4300 m a.s.l.
MARI, Stefano Maria;
2014-01-01
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 γ =−2.63±0.06I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
