publication . Preprint . Article . 2013

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

Daniele GaggeroSISSA and INFN, Trieste; Luca Maccione(LMU and MPP, Munich);
Open Access English
  • Published: 01 Jul 2013
  • Country: Italy
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.
arXiv: Astrophysics::High Energy Astrophysical Phenomena
free text keywords: astro-ph.HE, hep-ph, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Phenomenology, Astronomy and Astrophysics, Physics, Superposition principle, Lepton, Nuclear physics, Positron, Electron, Momentum, Electron spectra, Particle physics
Funded by
  • Funder: European Commission (EC)
  • Project Code: 289442
  • Funding stream: FP7 | SP3 | PEOPLE
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