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arXiv 1307.0271astro-ph.HEhep-ph
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AMS-02之后最近CR轻子数据的模型无关解释

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

Daniele Gaggero, Luca Maccione

摘要:

我们模型的CR轻子通量超过20 GeV的标准和电荷对称额外的组件,我们一般描述为幂律动量的叠加。在这些假设下,我们分别研究了AMS-02、Fermi-LAT和PAMELA数据集在正电子分数、电子+正电子能谱和电子能谱方面的兼容性。我们发现,这是可能的,以调和AMS和费米-LAT数据的不确定性,如果能量依赖的影响是存在于费米-LAT系统学。我们还研究了可能的偏离电荷对称性的额外组件,并没有发现令人信服的证据。

英文摘要:

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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