The ARGO-YBJ experiment, located in the Yangbajing Cosmic Ray observatory (4300 m a.s.l. Tibet, P.R. China), detects Extensive Air Showers in a wide energy range by means of a full-coverage detector based on RPC chambers. In this work recent results about the measurement of the combined proton and helium spectrum in the energy range 5-250 TeV are presented. The ARGO-YBJ results are therefore the first indirect measurements at these energies with ground-based detectors. The measured spectrum can be compared to direct measurements in the same energy region. The data show a good agreement with recent direct measurements and suggest that the spectrum is harder than in the low energy regi
Mari, S.M., Montini, P. (2013). Cosmic Ray measurements in the region 1-100 TeV: combined proton and helium spectrum. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? Proceedings of the 9th workshop on Science with the New Generation of High Energy Gamma-ray Experiments [10.1016/j.nuclphysbps.2013.05.041].