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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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e<br />

p<br />

γ *<br />

e<br />

Paul <strong>Hoyer</strong> Mugla 2010<br />

Quarks move relativistically inside the pro<strong>to</strong>n<br />

q<br />

DIS measures the<br />

fraction x of the<br />

pro<strong>to</strong>n energy<br />

which is carried<br />

by the quarks,<br />

anti-quarks and<br />

gluons.<br />

For non-relativistic<br />

internal motion the<br />

x-distribution would<br />

be sharply peaked<br />

Non-relativistic uud state<br />

29

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