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arXiv · 1307.0271

Model independent interpretation of recent CR lepton data after AMS-02

Daniele Gaggero·Luca Maccione
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Abstract

We model the CR leptonic fluxes above 20 GeV in terms of a superposition of a standard and a charge symmetric extra component, which we generically describe as power-laws in momentum. We investigate under these hypotheses the compatibility between AMS-02, Fermi-LAT and PAMELA datasets on positron fraction, electron+positron spectrum and electron spectrum respectively. We find that it is possible to reconcile AMS and Fermi-LAT data within uncertainties, if energy-dependent effects are present in Fermi-LAT systematics. We also study possible deviations from charge symmetry in the extra component and find no compelling evidence for them.

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Daniele Gaggero, Luca Maccione. 2013-11-28. Model independent interpretation of recent CR lepton data after AMS-02. https://doi.org/10.1088/1475-7516%2F2013%2F12%2F011

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