Evidences of high energy protons with energies beyond 0.4 GeV in the solar particle spectrum as responsible for the cosmic rays solar diurnal anisotropy

C. E. Navia, C. R. A. Augusto, M. B. Robba +1

Analysis on the daily variations of cosmic ray muons with $E_{\mu }\ge 0.2GeV$ based on the data of two directional muon telescopes at sea level and with a rigidity of response to cos…