Latest results on cosmic rays light elements with the CALorimetric Electron Telescope (CALET) on the International Space Station

Stolzi, Francesco; Adriani, O.; Akaike, Y.; Asano, K.; Asaoka, Y.; Berti, E.; Bigongiari, G.; Binns, W. R.; Bongi, M.; Brogi, P.; Bruno, A.; Cannady, N.; Castellini, G.; Checchia, C.; Cherry, M. L.; Collazuol, G.; de Nolfo, G. A.; Ebisawa, K.; Ficklin, A. W.; Fuke, H.; Gonzi, S.; Guzik, T. G.; Hams, T.; Hibino, K.; Ichimura, M.; Ioka, K.; Ishizaki, W.; Israel, M. H.; Kasahara, K.; Kataoka, J.; Kataoka, R.; Katayose, Y.; Kato, C.; Kawanaka, N.; Kawakubo, Y.; Kobayashi, K.; Kohri, K.; Krawczynski, H. S.; Krizmanic, J. F.; Maestro, P.; Marrocchesi, P. S.; Messineo, A. M.; Mitchell, J. W.; Miyake, S.; Moiseev, A. A.; Mori, M.; Mori, N.; Motz, H. M.; Munakata, K.; Nakahira, S.; Nishimura, J.; Okuno, S.; Ormes, J. F.; Ozawa, S.; Pacini, L.; Papini, P.; Rauch, B. F.; Ricciarini, S. B.; Sakai, K.; Sakamoto, T.; Sasaki, M.; Shimizu, Y.; Shiomi, A.; Spillantini, P.; Sugita, S.; Sulaj, A.; Takita, M.; Tamura, T.; Terasawa, T.; Tori, S.; Uchihori, Y. Tsunesada Y.; Vannuccini, E.; Wefel, J. P.; Yamaoka, K.; Yanagita, S.; Yoshida, A.; Yoshida, K.; Zober, W. V.

doi:10.22323/1.447.0012

The CALorimetric Electron Telescope (CALET) is an experiment installed on the International Space Station designed to carry out precision measurements of high energy cosmic-rays (CR) with the aim of investigating their origin, the mechanisms of acceleration and galactic propagation, and the presence of possible nearby astrophysical CR sources. The instrument combines a scintillator hodoscope for charge identification, thin imaging scintillating fiber calorimeter for particle tracking and complementary charge measurement, and total absorption PWO calorimeter for energy measurement. CALET is able to obtain precise measurements of the fluxes of CR electrons and γ rays up to TeV region, the energy spectra of CR nuclei from proton to nickel from few tens of GeV to hundreds of TeV and secondary-to-primary ratios of elements up to Z = 40. Here we present the highlights of CALET observation of light elements carried out during the first seven years of operation, including a direct measurement of the electron+positron spectrum from 11 GeV to 4.8 TeV and proton spectrum from 50 GeV to 60 TeV. Results on the electromagnetic counterpart search for LIGO/Virgo gravitational wave events and gamma-ray bursts are also summarized.

Latest results on cosmic rays light elements with the CALorimetric Electron Telescope (CALET) on the International Space Station / Stolzi, Francesco; O. Adriani, Y. Akaike, K. Asano, Y. Asaoka, E. Berti, G. Bigongiari, W.R. Binns, M. Bongi, P. Brogi, A. Bruno, N. Cannady, G. Castellini, C. Checchia, M.L. Cherry, G. Collazuol, G.A. de Nolfo, K. Ebisawa, A.W. Ficklin, H. Fuke, S. Gonzi, T.G. Guzik, T. Hams, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M.H. Israel, K. Kasahara, J. Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, K. Kobayashi, K. Kohri, H.S. Krawczynski, J.F. Krizmanic, P. Maestro, P.S. Marrocchesi, A.M. Messineo, J.W. Mitchell, S. Miyake, A.A. Moiseev, M. Mori, N. Mori, H.M. Motz, K. Munakata, S. Nakahira, J. Nishimura, S. Okuno, J.F. Ormes, S. Ozawa, L. Pacini, P. Papini, B.F. Rauch, S.B. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, P. Spillantini, S. Sugita, A. Sulaj, M. Takita, T. Tamura, T. Terasawa, S. Tori, Y. Tsunesada Y. Uchihori, E. Vannuccini, J.P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida, W.V. Zober. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - ELETTRONICO. - 447 - Multifrequency Behaviour of High Energy Cosmic Sources XIV (MULTIF2023):(2024), pp. 012.0-012.0. [10.22323/1.447.0012]