We present a measurement of the cosmic ray (e^+ + e^-) flux in the range 0.5 GeV to 1 TeV based on the analysis of 10.6 million (e^+ + e^-) events collected by AMS. The statistics and the resolution of AMS provide a precision measurement of the flux. The flux is smooth and reveals new and distinct information. Above 30.2 GeV, the flux can be described by a single power law with a spectral index γ = −3.170 +/- 0.008 (stat + syst) +/- 0.008 (energy scale)

Aguilar, M., Aisa, D., Alpat, B., Alvino, A., Ambrosi, G., Andeen, K., et al. (2014). Precision Measurement of the (e^+ + e^-) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station. PHYSICAL REVIEW LETTERS, 113(22) [10.1103/PhysRevLett.113.221102].

Precision Measurement of the (e^+ + e^-) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station

BOELLA, GIULIANO FILIPPO;GERVASI, MASSIMO;Grandi, D;LA VACCA, GIUSEPPE;PENSOTTI, SIMONETTA;ROZZA, DAVIDE;TACCONI, MAURO;
2014

Abstract

We present a measurement of the cosmic ray (e^+ + e^-) flux in the range 0.5 GeV to 1 TeV based on the analysis of 10.6 million (e^+ + e^-) events collected by AMS. The statistics and the resolution of AMS provide a precision measurement of the flux. The flux is smooth and reveals new and distinct information. Above 30.2 GeV, the flux can be described by a single power law with a spectral index γ = −3.170 +/- 0.008 (stat + syst) +/- 0.008 (energy scale)
Articolo in rivista - Articolo scientifico
AMS, Cosmic Rays, electrons
English
26-nov-2014
2014
113
22
221102
open
Aguilar, M., Aisa, D., Alpat, B., Alvino, A., Ambrosi, G., Andeen, K., et al. (2014). Precision Measurement of the (e^+ + e^-) Flux in Primary Cosmic Rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station. PHYSICAL REVIEW LETTERS, 113(22) [10.1103/PhysRevLett.113.221102].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/55518
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