Plain question: Is it already solved why the Higgs couples different to various particles (causing distinct mass scales)? Or is it still an ongoing topic?

Can't find an information about the current status.

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    $\begingroup$ Couples in current particle physics means the coupling constant in the vertices of the feynman diagrams , weak strong electromagnetic ( and maybe gravitational). Do you mean why it gives different masses to different elementary particle sin the particle table of the standard model? en.wikipedia.org/wiki/Standard_Model $\endgroup$ – anna v Apr 12 '18 at 11:58
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    $\begingroup$ In the standard model the masses of the particles are not derived but are taken as given constants from measurement. For extensions of the standard model it is a matter of research whether an extended model can have less masses as assumed constants, using various symmetries. see arxiv.org/abs/1301.7065 as an example of research $\endgroup$ – anna v Apr 12 '18 at 12:06

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