Thursday,
18 August 2022
Amsterdam
Physicists surprised to discover the proton contains a charm quark (1)
The textbook description of a proton says it contains three smaller
particles - two up quarks and a down quark - but a new analysis has found
strong evidence that it also holds a charm quark
Physics 17 August 2022
By Alex Wilkins
An artist's impression of a proton - the large red spheres are up quarks
and the large blue sphere a down quark
CERN
The proton, a particle found at the heart of every atom, appears to have a
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