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 />
<strong>QCD</strong> is very successful in comparisons with data<br />
Rate of 3-jet events<br />
in e + e – annihilations<br />
e + e – → q q g<br />
→ 3 jets<br />
Ex: Estimate the CM<br />
energy in e+ e– annihilations<br />
at which 2-jet structure<br />
emerges. In quark<br />
fragmentation, pions get an<br />
average fraction ≈ 0.1<br />
of the quark energy, and<br />
≈ 350 MeV.<br />
S. Bethke, hep-ex/0606035<br />
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