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arxiv: 1307.0271 · v2 · pith:ICBWWLAVnew · submitted 2013-07-01 · 🌌 astro-ph.HE · hep-ph

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

classification 🌌 astro-ph.HE hep-ph
keywords fermi-latams-02chargecomponentdataelectronextrafind
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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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