AMS-02 antiprotons from annihilating or decaying dark matter

AMS-02 antiprotons from annihilating or decaying dark matter

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Recently the AMS-02 experiment reported an excess of cosmic ray antiprotons over the expected astrophysical background.We interpret the excess as a signal from annihilating or decaying dark matter and find that the observed spectrum is well fitted Outdoor Swivel Chair with Cushion (Set of 2) by adding contributions from the annihilation or decay of dark matter with mass of O(TeV) or larger.Interestingly, Wino dark matter with mass of Outdoor Console with Drink Holders around 3 TeV, whose thermal relic abundance is consistent with present dark matter abundance, can explain the antiproton excess.We also discuss the implications for the decaying gravitino dark matter with R-parity violation.