Speaker
Valerio Vagelli
(INFN Perugia (IT))
Description
We present the measurement of the cosmic ray (e$^{+}$+e$^{-}$) flux in the energy range 0.5 GeV to 1 TeV based on the analysis of 10.6 million e$^{\pm}$ events collected by AMS during the first 30 months of data taking. The statistics and the resolution of the AMS detector provide an accurate
measurement in the whole energy range. No features have been observed in the flux, and the (e$^{+}$+e$^{-}$) spectrum can be accurately described by a single power law with spectral index $\gamma = −3.170 \pm 0.008(\mbox{stat+syst}) \pm 0.008(\mbox{energy scale})$ above 30.2 GeV. The new and unique information revealed by the (e$^{+}$+e$^{-}$) flux measurement sets additional significant constraints in the search for the origin of cosmic ray e$^{\pm}$.
Author
Valerio Vagelli
(INFN Perugia (IT))
