Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope
Journal
Date Issued
2017
Author(s)
Abdollahi, S.
•
Ackermann, M.
•
Ajello, M.
•
Atwood, W. B.
•
Baldini, L.
•
Barbiellini, G.
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Bastieri, D.
•
Bellazzini, R.
•
Bloom, E. D.
•
Bonino, R.
•
Brandt, T. J.
•
Bregeon, J.
•
Bruel, P.
•
Buehler, R.
•
Cameron, R. A.
•
Caputo, R.
•
Caragiulo, M.
•
Castro, D.
•
Cavazzuti, E.
•
Cecchi, C.
•
Chekhtman, A.
•
Ciprini, S.
•
Cohen-Tanugi, J.
•
Costanza, F.
•
Cuoco, A.
•
Cutini, S.
•
•
de Palma, F.
•
Desiante, R.
•
Digel, S. W.
•
Di Lalla, N.
•
DI MAURO, Maria Giuseppina
•
Di Venere, L.
•
Drell, P. S.
•
Drlica-Wagner, A.
•
Favuzzi, C.
•
Focke, W. B.
•
Funk, S.
•
Fusco, P.
•
Gargano, F.
•
Gasparrini, D.
•
Giglietto, N.
•
Giordano, F.
•
•
Green, D.
•
Guillemot, L.
•
Guiriec, S.
•
Harding, A. K.
•
Jogler, T.
•
Jóhannesson, G.
•
Kamae, T.
•
Kuss, M.
•
•
Latronico, L.
•
Longo, F.
•
Loparco, F.
•
Lubrano, P.
•
Maldera, S.
•
Malyshev, D.
•
Manfreda, A.
•
Mazziotta, M. N.
•
Michelson, P. F.
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Mirabal, N.
•
Mitthumsiri, W.
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Mizuno, T.
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Moiseev, A. A.
•
Monzani, M. E.
•
Morselli, A.
•
Moskalenko, I. V.
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Negro, M.
•
Nuss, E.
•
Orlando, E.
•
Paneque, D.
•
Perkins, J. S.
•
Pesce-Rollins, M.
•
Piron, F.
•
Pivato, G.
•
Porter, T. A.
•
•
Rainò, S.
•
Rando, R.
•
Razzano, M.
•
Reimer, A.
•
Reimer, O.
•
Sgrò, C.
•
Simone, D.
•
Siskind, E. J.
•
Spada, F.
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Spandre, G.
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Spinelli, P.
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Tajima, H.
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Thayer, J. B.
•
Tibaldo, L.
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Torres, D. F.
•
Troja, E.
•
Wood, M.
•
Worley, A.
•
Zaharijas, G.
•
Zimmer, S.
•
Fermi-LAT Collaboration
Abstract
We present a measurement of the cosmic-ray electron +positron spectrum between 7 GeV and 2 TeV performed with almost seven years of data collected with the Fermi Large Area Telescope. We find that the spectrum is well fit by a broken power law with a break energy at about 50 GeV. Above 50 GeV, the spectrum is well described by a single power law with a spectral index of 3.07 ±0.02 (stat +syst )±0.04 (energy measurement) . An exponential cutoff lower than 1.8 TeV is excluded at 95% CL.
Volume
95
Issue
8
Start page
082007
Issn Identifier
2470-0010
Ads BibCode
2017PhRvD..95h2007A
Rights
open.access
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