Indirect detection, direct detection, and collider detection cross-sections for a 70 GeV dark matter WIMP

Assuming a dark matter fraction \(\Omega_{DM} = 0.27\) and a reduced Hubble constant \(h = 0.73\), we obtain a value of 70 GeV/c\(^2\) for the mass of the dark matter WIMP we have previously proposed. We also obtain a value for the annihilation cross section given by \(\langle \sigma_{ann} v \rangle = 1.19 \times 10^{-26} \) cm\(^3\)/s in the present universe, consistent with the current limits for dwarf spheroidal galaxies. Both the mass and cross-section are consistent with analyses of the Galactic-center gamma rays observed by Fermi-LAT and the antiprotons observed by AMS-02 if these data are interpreted as resulting from dark matter annihilation. The spin-independent cross-section for direct detection in Xe-based experiments is estimated to be slightly above \(10^{-48}\) cm\(^2\), presumably just within reach of the LZ and XENONnT experiments with \(\gtrsim 1000\) days of data taking. The cross-section for production in high-energy proton collisions via vector boson fusion is estimated to be \(\sim 1\) femtobarn, possibly within reach of the high-luminosity LHC, with \(\ge 140\) GeV of missing energy accompanied by two jets.