Skip to Main content Skip to Navigation
Journal articles

Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station

M. Aguilar 1 D. Aisa 2 A. Alvino 2 G. Ambrosi 2 K. Andeen 3 L. Arruda N. Attig 4 P. Azzarello 2 A. Bachlechner 4 F. Barao A. Barrau 5 L. Barrin 6 A. Bartoloni 7 L. Basara 8 M. Battarbee 9 R. Battiston 10 J. Bazo 2 U. Becker 11 M. Behlmann 12 B. Beischer 4 J. Berdugo 1 B. Bertucci 2 G. Bigongiari 13 V. Bindi 14 S. Bizzaglia 2 M. Bizzarri 2 G. Boella 15 W. de Boer 16 K. Bollweg 17 V. Bonnivard 5 B. Borgia 7 S. Borsini 2 M.J. Boschini 15 M. Bourquin 18 J. Burger 12 F. Cadoux 18 X.D. Cai 12 M. Capell 12 S. Caroff 8 J. Casaus 1 V. Cascioli 2 G. Castellini 19 I. Cernuda 1 F. Cervelli 20 M.J. Chae 21 Y.H. Chang 22 A.I. Chen 12 H. Chen 12 G.M. Cheng 23 H.S. Chen 23 L. Cheng 24 A. Chikanian 25 H.Y. Chou E. Choumilov V. Choutko C.H. Chung C. Clark R. Clavero G. Coignet 8 C. Consolandi A. Contin 26 C. Corti B. Coste Z. Cui M. Dai C. Delgado S. Della Torre M.B. Demirköz L. Derome 5 S. Di Falco L. Di Masso F. Dimiccoli C. Díaz P. von Doetinchem W.J. Du M. Duranti D. d'Urso A. Eline F.J. Eppling T. Eronen Y.Y. Fan L. Farnesini J. Feng 8 E. Fiandrini A. Fiasson 8 E. Finch P. Fisher Y. Galaktionov G. Gallucci B. García R. García-López H. Gast I. Gebauer M. Gervasi A. Ghelfi 5 W. Gillard F. Giovacchini P. Goglov J. Gong C. Goy 8 V. Grabski D. Grandi M. Graziani C. Guandalini I. Guerri K.H. Guo M. Habiby S. Haino K.C. Han Z.H. He M. Heil Jakobus Hoffman T.H. Hsieh Z.C. Huang C. Huh M. Incagli M. Ionica W.Y. Jang H. Jinchi K. Kanishev G.N. Kim K.S. Kim Th. Kirn R. Kossakowski 8 O. Kounina A. Kounine V. Koutsenko M.S. Krafczyk S. Kunz G. La Vacca E. Laudi G. Laurenti I. Lazzizzera A. Lebedev H.T. Lee S.C. Lee C. Leluc H.L. Li J.Q. Li Q. Li T.X. Li W. Li Y. Li Z.H. Li Z.Y. Li S. Lim C.H. Lin P. Lipari T. Lippert D. Liu Hong Liu T. Lomtadze M.J. Lu Y.S. Lu K. Luebelsmeyer F. Luo J.Z. Luo S.S. Lv R. Majka A. Malinin C. Mañá J. Marín T. Martin Gines Martinez Garcia 1 N. Masi D. Maurin 5 A. Menchaca-Rocha Q. Meng D.C. Mo L. Morescalchi P. Mott M. Müller J.Q. Ni N. Nikonov F. Nozzoli P. Nunes A. Obermeier A. Oliva M. Orcinha F. Palmonari C. Palomares M. Paniccia A. Papi E. Pedreschi S. Pensotti R. Pereira F. Pilo A. Piluso C. Pizzolotto V. Plyaskin M. Pohl V. Poireau 8 E. Postaci A. Putze 8 L. Quadrani X.M. Qi P.G. Rancoita D. Rapin J.S. Ricol 5 I. Rodríguez S. Rosier-Lees 8 A. Rozhkov D. Rozza R. Sagdeev J. Sandweiss P. Saouter C. Sbarra S. Schael S.M. Schmidt D. Schuckardt A. Schulz von Dratzig G. Schwering G. Scolieri E.S. Seo B.S. Shan Y.H. Shan J.Y. Shi X.Y. Shi Y.M. Shi T. Siedenburg D. Son F. Spada F. Spinella W. Sun W.H. Sun M. Tacconi C.P. Tang X.W. Tang Z.C. Tang L. Tao 8 D. Tescaro Samuel C. C. Ting S.M. Ting N. Tomassetti 5 J. Torsti C. Türkoğlu T. Urban V. Vagelli E. Valente C. Vannini E. Valtonen S. Vaurynovich M. Vecchi 8 M. Velasco J.P. Vialle 8 L.Q. Wang Q. L. Wang R. S.Wang X. Wang Z.X. Wang Z.L. Weng K. Whitman J. Wienkenhöver H. Wu X. Xia M. Xie S. Xie R.Q. Xiong G.M. Xin N.S. Xu Wei-Jiang Xu Q. Yan J. Yang M. Yang Q.H. Ye H. Yi Y.J. Yu Z.Q. Yu S. Zeissler J.H. Zhang M.T. Zhang X.B. Zhang Zhen Zhang Z.M. Zheng H.L. Zhuang V. Zhukov A. Zichichi N. Zimmermann 4 P. Zuccon 12 C. Zurbach 27
Abstract : Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV and the positron flux in the range 0.5 to500 GeV are presented. The electron flux and the positron flux each require a description beyond a single power-law spectrum. Both the electron flux and the positron flux change their behavior at∼30GeV but the fluxes are significantly different in their magnitude and energy dependence. Between 20 and 200 GeV the positron spectral index is significantly harder than the electron spectral index. The determination of the differing behavior of the spectral indices versus energy is a new observation and provides important information on the origins of cosmic-ray electrons and positrons.
Complete list of metadata

http://hal.in2p3.fr/in2p3-01066028
Contributor : Emmanuelle Vernay <>
Submitted on : Thursday, June 3, 2021 - 5:02:23 PM
Last modification on : Saturday, June 12, 2021 - 11:46:02 AM

File

Zuccon_Electron and.pdf
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

M. Aguilar, D. Aisa, A. Alvino, G. Ambrosi, K. Andeen, et al.. Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters, American Physical Society, 2014, 113, pp.121102. ⟨10.1103/PhysRevLett.113.121102⟩. ⟨in2p3-01066028⟩

Share

Metrics

Record views

570

Files downloads

31