... the LHC may have generated particles at 750 GeV of a new kind, beyond the standard model. Assuming that this is real, the obvious question is how to explain it; Jester examined a simple toy model borrowed from the standard model, while Lubos reported on more interesting explanations, e.g. a sgoldstino or a radion.
Meanwhile, Peter Woit emphasized that the latest LHC run has further pushed up limits on superpartner masses and the probability that susy will be discovered with the LHC is significantly lower now.
Away from the LHC it might be possible to test (some ideas about) quantum gravity with heavy quantum objects, as reported by Sabine Hossenfelder.
Last, but not least, it turned out (already a year ago) that the spectral gap problem, studied by solid state physicists, is undecidable if the Hamiltonian is complicated enough; Scott has more about it .
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