Absolute-energy-scale calibration of ARGO-YBJ for light primaries in multi-TeV region with the Moon shadow observation

Abstract In 2011 ARGO-YBJ experiment has reported a work to study the absolute rigidity scale of the primary cosmic rayparticles based on the Moon’s shadow observation. Given the progress in high energy hadronic interaction modelswith LHC data, in cosmic raychemical composition measurement and in experimental data accumulation, more updates can be researched. This paper aims to further disentangle the composition dependence in absolute-energy-scale calibration by using specific moon-shadow data which mainly is comprised of light component cosmic rays. Results show that, 17% energy scale erroris estimated from 3 TeV to 50 TeV. To validate the performance of this technique, the light component cosmic rayspectrum in the same energy region is shown.