Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope

Abdollahi S, Ackermann M, Ajello M, Atwood WB, Baldini L, Barbiellini G, Bastieri D, Bellazzini R, Bloom ED, Bonino R, Brandt TJ, Bregeon J, Bruel P, Buehler R, Cameron RA, Caputo R, Caragiulo M, Castro D, Cavazzuti E, Cecchi C, Chekhtman A, Ciprini S, Cohen-Tanugi J, Costanza F, Cuoco A, Cutini S, D'Ammando F, De Palma F, Desiante R, Digel SW, Di Lalla N, Di Mauro M, Di Venere L, Drell PS, Drlica-Wagner A, Favuzzi C, Focke WB, Funk S, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Green D, Guillemot L, Guiriec S, Harding AK, Jogler T, Johannesson G, Kamae T, Kuss M, La Mura G, Latronico L, Longo F, Loparco F, Lubrano P, Maldera S, Malyshev D, Manfreda A, Mazziotta MN, Michelson PF, Mirabal N, Mitthumsiri W, Mizuno T, Moiseev AA, Monzani ME, Morselli A, Moskalenko IV, Negro M, Nuss E, Orlando E, Paneque D, Perkins JS, Pesce-Rollins M, Piron F, Pivato G, Porter TA, Principe G, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Sgro C, Simone D, Siskind EJ, Spada F, Spandre G, Spinelli P, Tajima H, Thayer JB, Tibaldo L, Torres DF, Troja E, Wood M, Worley A, Zaharijas G, Zimmer S (2017)


Publication Type: Journal article

Publication year: 2017

Journal

Book Volume: 95

Journal Issue: 8

DOI: 10.1103/PhysRevD.95.082007

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.

Authors with CRIS profile

Involved external institutions

ASI Science Data Center (ASDC) IT Italy (IT) Stanford University US United States (USA) (US) Politecnico di Bari IT Italy (IT) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) IT Italy (IT) University of Montpellier / Université Montpellier FR France (FR) Deutsches Elektronen-Synchrotron DESY DE Germany (DE) National Aeronautics and Space Administration (NASA) US United States (USA) (US) George Mason University US United States (USA) (US) Clemson University US United States (USA) (US) University of California Santa Cruz US United States (USA) (US) University of Pisa / Università di Pisa (UniPi) IT Italy (IT) University of Geneva / Université de Genève (UNIGE) CH Switzerland (CH) Mahidol University / มหาวิทยาลัยมหิดล TH Thailand (TH) Hiroshima University JP Japan (JP) Max-Planck-Institut für Physik (Werner-Heisenberg-Institut, MPP) / Max Planck Institute for Physics DE Germany (DE) National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF) IT Italy (IT) Spanish National Research Council / Consejo Superior de Investigaciones Científicas (CSIC) ES Spain (ES) University of Denver US United States (USA) (US) University of Orléans / Université d'Orléans FR France (FR) University of Maryland US United States (USA) (US) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics DE Germany (DE) University of Padua / Universita degli Studi di Padova IT Italy (IT) NYCB Real-Time Computing, Inc. US United States (USA) (US) University of Tokyo JP Japan (JP) University of Iceland (UI) / Háskóli Íslands IS Iceland (IS) Fermi National Accelerator Laboratory (Fermilab) US United States (USA) (US) École Polytechnique - Université Paris-Saclay FR France (FR)

How to cite

APA:

Abdollahi, S., Ackermann, M., Ajello, M., Atwood, W.B., Baldini, L., Barbiellini, G.,... Zimmer, S. (2017). Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope. Physical Review D, 95(8). https://dx.doi.org/10.1103/PhysRevD.95.082007

MLA:

Abdollahi, S., et al. "Cosmic-ray electron-positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope." Physical Review D 95.8 (2017).

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