Introduction to QCD slides - P.Hoyer.pdf - High Energy Physics Group
Introduction to QCD slides - P.Hoyer.pdf - High Energy Physics Group
Introduction to QCD slides - P.Hoyer.pdf - High Energy Physics Group
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Paul <strong>Hoyer</strong> Mugla 2010<br />
The Discovery of the Strong Interaction<br />
Rutherford’s experiment 1911:<br />
The positive charges in matter are<br />
located in a tiny nucleus, whose radius<br />
is ~ 10 –5 of the a<strong>to</strong>mic size.<br />
⇒ There must be a strong, short-ranged<br />
force <strong>to</strong> counteract the Coulomb repulsion<br />
Thomson’s a<strong>to</strong>m: Rutherford’s a<strong>to</strong>m:<br />
F = α<br />
r 2<br />
Rnucleus<br />
Ra<strong>to</strong>m<br />
� 10 −5<br />
3
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