Particle physicists are discovering more and more exotic particles with more than three quarks © iStock / scinexx
Growth in the particle zoo
In Search of the Secret of Tetraquark and Co
The smallest building blocks of matter give up puzzles - today more than ever. For just in recent years, physicists have discovered some subatomic particles that do not fit into the usual scheme. These include particles with four or even more quarks. How these particles come about and how they are structured has so far been open - and the subject of intensive research.
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- Nadja Podbregar