Tension between recent dark matter results and Lux-Xenon?

In summary, recent results suggest the existence of a WIMP dark matter particle near 80 Gev, which is compatible with the interpretation of the Galactic center gamma-ray excess. However, there is some skepticism about this claim, as pulsars could also emit similar signals from the core and the assigned 4.3 sigma may not be entirely reliable. The forthcoming LZ experiment may provide more insight into this potential tension between recent AMS-02 results and negative results from Lux and Xenon.
  • #1
jimgraber
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How much tension between recent AMS-02 80 Gev dark matter and Lux-Xenon negative results?
Recent results ( Arxiv 1610.03840 and 1704.08258) suggest a WIMP dark matter particle near 80 Gev. See also https://phys.org/news/2017-05-possibility-cosmic-rays-due-dark.html

If this particle really exists, should we have seen it in recent negative results from Lux and Xenon?

Should we see it in forthcoming LZ experiment?
 
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  • #2
jimgraber said:
How much tension between recent AMS-02 80 Gev dark matter and Lux-Xenon negative results?
Recent results ( Arxiv 1610.03840 and 1704.08258) suggest a WIMP dark matter particle near 80 Gev. See also https://phys.org/news/2017-05-possibility-cosmic-rays-due-dark.html

If this particle really exists, should we have seen it in recent negative results from Lux and Xenon?

Should we see it in forthcoming LZ experiment?

I'm not sure how this claim ties back to the LUX data, but I'm always leery of claims like this:

From the abstract: Intriguingly, this signal is compatible with the DM interpretation of the Galactic center gamma-ray excess.

http://spaceref.com/astronomy/origi...al-dark-matter-signal-may-not-be-so-dark.html

For quite some time it's been known that pulsars could emit the same type of gamma signals from the core, so I take these types of claims with grain of salt, particularly when they assign a 4.3 sigma to the claim. :) I'd assume that they simply didn't try a 'model' with a lot of large pulsars near the core. :)
 
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