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I understand that experiments at LUX, XENON and LHC have eliminated many of the predicted masses for candidates for Dark Matter. Does anyone know what the current lowest possible mass is that hasn't been eliminated through experiments? What does that work out to in terms of cross section?

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  • $\begingroup$ Do you mean that the LHC has set lower limits on the masses of supersymmetric particles that might form dark matter, and you're asking about those limits? The LHC itself is not an especially useful probe of dark matter compared to the many direct detection experiments done or in progress like XENON. $\endgroup$ – John Rennie Aug 2 at 13:12
  • $\begingroup$ Yes, I'm asking about those limits. $\endgroup$ – Quarkly Aug 2 at 16:13
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    $\begingroup$ en.wikipedia.org/wiki/Axion $\endgroup$ – probably_someone Aug 2 at 16:14
  • $\begingroup$ @probably_someone - The referenced article contains no useful information. Did I miss something where they talked about the constraints on mass or cross section? $\endgroup$ – Quarkly Aug 2 at 18:27
  • $\begingroup$ It also depends on what model of dark matter candidate you're talking about, there exists a very nice plot for the bounds set for WIMP nucleon scattering.. researchgate.net/figure/… $\endgroup$ – Triatticus Aug 2 at 19:49

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