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by guitarbill 3378 days ago
AFAIK, the experimentally determined rest masses of these excited states/particles (same thing, different was of looking at it) agree with the calculated ones well. So yes, they were predicted. No surprises sadly; of course it's still a huge achievement!
1 comments

The theory uncertainties are large. Any measurements within a broad range would also agree with some calculated masses. That doesn't tell you much.

See e.g. https://arxiv.org/abs/1311.4806