Has Dark Matter been discovered?

[John Clark]

In yesterday's Physical Review Letters an article was published that says Dark Matter *MIGHT* have been discovered in the XENON1T underground detector deep below the Gran Sasso mountain in Italy. The signal is less than the five Sigma needed to claim a discovery but it was strong enough to cause a great deal of excitement, 5 theoretical papers have already been published to try to explain it. It might turn out to be revolutionary or it might turn out to be nothing, we'll just have to wait and see.

XENON1T Excess from Anomaly-Free Axionlike Dark Matter and ItsImplications for Stellar Cooling Anomaly 

John K Clark

[Lawrence Crowell]

I am all for axions. The axion connects a lot of particle physics with edge states in quantum Hall and quantum phase transition physics. 

LC