Questions tagged [x17]
The x17 tag has no usage guidance.
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Was X17 predicted before it was observed?
Articles, with very little detail, have made their rounds about an X17 boson (16.7 MeV) being observed in tests of decaying beryllium-8 and perhaps once in a test with helium.
Most of the ...
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Why should the X17 be a force carrier?
A preprint has been recently published on arXiv about another experimental evidence of the existence of the X17 particle, a 17 MeV boson that would be a potential force carrier.
Now, I don't have a ...
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Is the "protophobic fifth force" observed in nuclear decays a new fundamental force?
There is a recent paper in PRL, also on the ArXiv that claims the discovery of a fifth force, mediated by a 17 MeV boson, which explains an anomaly in nuclear decays.
Is this a real effect? Could the ...
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