 Taking the heaviest three quarks, charm (1.275 ± 0.03 GeV), bottom (4.180 ± 0.04 GeV) and top (173.0 ± 0.40 GeV), and without using their uncertainties gives the value cited by F. G. Cao (2012),

This was noticed by Rodejohann and Zhang in the first version of their 2011 article but the observation was removed in the published version, so the first published mention is in 2012 from Cao.Similarly, the masses of the lightest quarks, up (2.2 ± 0.4 MeV), down (4.7 ± 0.3 MeV), and strange (95.0 ± 4.0 MeV), without using their experimental uncertainties yield,

a value also cited by Cao in the same paper.In quantum field theory, quantities like coupling constant and mass "run" with the energy scale.