Protons are probably actually smaller than long thought
A few years ago, a novel measurement technique showed that protons are probably smaller than had been assumed since the 1990s. The discrepancy surprised the scientific community; some researchers even believed that the Standard Model of particle physics would have to be changed. Physicists have now developed a method that allows them to analyze the results of older and more recent experiments much more comprehensively than before. This also results in a smaller proton radius from the older data. So there is probably no difference between the values - no matter which measurement method they are based on.
from Latest Science News -- ScienceDaily https://ift.tt/nLZzi7B
from Latest Science News -- ScienceDaily https://ift.tt/nLZzi7B
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