History, quark model and the SU(3)-symmetry
History, quark model and the SU(3)-symmetry
History, quark model and the SU(3)-symmetry
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<strong>History</strong><br />
• with <strong>the</strong> development of particle accelerators<br />
in <strong>the</strong> 1940´s <strong>and</strong> 1950´s a large number of<br />
particles was discovered, called <strong>the</strong><br />
“particle-zoo”.<br />
• great efforts have been made in order to<br />
classify <strong>the</strong> “zoo” according to simple<br />
principles<br />
Simela Aslanidou 14.12.2006