Direct Measurement of the Cosmic-Ray Proton Spectrum from 50 GeV to 10 TeV with the Calorimetric Electron Telescope on the International Space Station

This work was supported in part by JSPS Grant-in-Aid for Scientific Research (S) Grant No. 26220708, JSPS Grant-in-Aid for Scientific Research (B) Grant No. 17H02901, and by the MEXT-Supported Program for the Strategic Research Foundation at Private Universities (Grant No. S1101021) at Waseda University. The CALET effort in the United States is supported by NASA through Grants No. NNX16AB99G, No. NNX16AC02G, and No. NNH14ZDA001N-APRA-0075.