@article{808921c947ad42d38d855e05e7fcf4b2,
title = "Energy Spectrum of Cosmic-Ray Electron and Positron from 10 GeV to 3 TeV Observed with the Calorimetric Electron Telescope on the International Space Station",
abstract = "First results of a cosmic-ray electron and positron spectrum from 10 GeV to 3 TeV is presented based upon observations with the CALET instrument on the International Space Station starting in October, 2015. Nearly a half million electron and positron events are included in the analysis. CALET is an all-calorimetric instrument with total vertical thickness of 30 X0 and a fine imaging capability designed to achieve a large proton rejection and excellent energy resolution well into the TeV energy region. The observed energy spectrum over 30 GeV can be fit with a single power law with a spectral index of -3.152±0.016 (stat+syst). Possible structure observed above 100 GeV requires further investigation with increased statistics and refined data analysis.",
author = "{(CALET Collaboration)} and O. Adriani and Y. Akaike and K. Asano and Y. Asaoka and Bagliesi, {M. G.} and G. Bigongiari and Binns, {W. R.} and S. Bonechi and M. Bongi and P. Brogi and Buckley, {J. H.} and N. Cannady and G. Castellini and C. Checchia and Cherry, {M. L.} and G. Collazuol and {Di Felice}, V. and K. Ebisawa and H. Fuke and Guzik, {T. G.} and T. Hams and M. Hareyama and N. Hasebe and K. Hibino and M. Ichimura and K. Ioka and W. Ishizaki and Israel, {M. H.} and A. Javaid and K. Kasahara and J. Kataoka and R. Kataoka and Y. Katayose and C. Kato and N. Kawanaka and Y. Kawakubo and Krawczynski, {H. S.} and Krizmanic, {J. F.} and S. Kuramata and T. Lomtadze and P. Maestro and Marrocchesi, {P. S.} and Messineo, {A. M.} and Mitchell, {J. W.} and S. Miyake and K. Mizutani and Moiseev, {A. A.} and K. Mori and M. Mori and K. Yoshida",
note = "Funding Information: The Calorimetric Electron Telescope (CALET) is a Japan-led international mission funded by the Japanese Space Agency in collaboration with the Italian Space Agency and NASA . The instrument was launched on August 19, 2015 by a Japanese carrier H-II transfer vehicle and robotically installed on the Japanese Experiment Module-Exposed Facility on the International Space Station for a two-year mission, extendable to five years. Funding Information: We gratefully acknowledge JAXA{\textquoteright}s contributions to the development of CALET and to the operations onboard the ISS. We also wish to express our sincere gratitude to ASI and NASA for their support of the CALET project. This work was supported in part by a JSPS Grant-in-Aid for Scientific Research (S) (Grant No. 26220708) and by the MEXT-Supported Program for the Strategic Research Foundation at Private Universities (2011–2015) (Grant No. S1101021) at Waseda University. Publisher Copyright: {\textcopyright} 2017 Published by the American Physical Society.",
year = "2017",
month = nov,
day = "1",
doi = "10.1103/PhysRevLett.119.181101",
language = "English",
volume = "119",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "18",
}