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We study the cosmic ray antiprotons with updated constraints on thepropagation, proton injection, and solar modulation parameters based on thenewest AMS-02 data near the Earth and Voyager data in the local interstellarspace, and on the cross section of antiproton production due to proton-protoncollisions based on new collider data. We use a Bayesian approach to properlyconsider the uncertainties of the model predictions of both the background andthe dark matter (DM) annihilation components of antiprotons. We find thatincluding an extra component of antiprotons from the annihilation of DMparticles into a pair of quarks can improve the fit to the AMS-02 antiprotondata considerably. The favored mass of DM particles is about $60\sim100$ GeV,and the annihilation cross section is just at the level of the thermalproduction of DM ($\langle\sigma v\rangle \sim O(10^{-26})$ cm$^3$~s$^{-1}$).

Revisit of cosmic ray antiprotons from dark matter annihilation with updated constraints on the background model from AMS-02 and collider data