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What is soft-QCD? - High Energy Physics

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Underlying Event Measurements<br />

60° < |ΔΦ| < 120°<br />

• Define the direction of the “hard scatter” (highest p T jet /particle)<br />

• Study the activity (# of particles or Σp T ) in the region “transverse” to the hard scatter<br />

Emily Nurse<br />

Soft-<strong>QCD</strong><br />

28

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