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The potential antiproton excess in the AMS-02 data is of much interest andcan probably come from dark matter annihilations. Based on the effective fieldtheory approach, in this work we investigate the compatibility of the DMinterpretation of the AMS-02 antiproton excess and the null results from directdetection experiments, LUX, PandaX-II, and XENON1T. We focus on dimension-fiveand -six operators with fermion DM. Only one of dimension-five and one ofdimension-six operators can successfully account for the antiproton excess,while the rest either are excluded by direct detection or require very smallcut-off scales which invalidate the effective field theory approach.

Consistency test of the AMS-02 antiproton excess with direct detection data based on the effective field theory approach