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Does this article make sense?
It has a lot of nice math, but I have trouble grasping the logic of the arguments. If they make sense, it should be possible to explain them better.
I don’t follow the argument, but I am getting the sense that the basic idea is to somehow associate a 2d CFT with the standard model and then to argue that seemingly desirable conditions on the central charge of that CFT translate to the total number of fermions of the standard model being a multiple of 48.
The wording suggests that the 2d CFT in question is meant to be a truncated KK-reduction of the standard model. Here I am not sure which one and why the result would be conformal.
The additional assumption of a “mass domain wall” in 5d seems to be used to project out half of the fermions for the counting to work as desired; but I am not sure which 5d theory with domain walls this would be about, or how it would still relate to the standard model.
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