What is soft-QCD? - High Energy Physics

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1. Minimum Bias 2. Underlying Event 3. Total cross-section 4. Diffractive cross-sections 5. Particle Correlations Emily Nurse Soft-<strong>QCD</strong> 36
Gap cross-section • Diffractive events tend to have large “rapidity gaps” • Measure σ vs Δη (large Δη dominated by diffraction) η=-4.9 Δη η=4.9 Calorimeters : |η| < 4.9 Inner Tracking Detector : |η| < 2.5 Emily Nurse Soft-<strong>QCD</strong> 37
Page 1 and 2: Soft-QCD at Hadron Colliders 1 st N
Page 3 and 4: Hadron colliders : recap LHC: pp @
Page 5 and 6: What is soft-QCD? cross-section for
Page 7 and 8: What is soft-QCD? Soft-QCD processe
Page 9 and 10: Pileup Important for understanding
Page 11 and 12: Soft-QCD models e.g. Pythia QCD 22
Page 13 and 14: Soft-QCD models Matter distribution
Page 15 and 16: 1. Minimum Bias 2. Underlying Event
Page 17 and 18: Measurement philosophy How should y
Page 19 and 20: Correcting the data • Trigger eff
Page 21 and 22: η spectra lower p T particles Emil
Page 23 and 24: Results at 0.9, 2.36 and 7 TeV High
Page 25 and 26: Reminder : Underlying Event Soft-QC
Page 27 and 28: Underlying Event Measurements • H
Page 29 and 30: Underlying Event Measurements Emily
Page 31 and 32: Underlying Event Measurements Incon
Page 33 and 34: Double parton scattering The high p
Page 35: Inelastic cross-section measurement
Page 39 and 40: Other diffractive processes Not rea
Page 41 and 42: Two particle correlations R(Δη,Δ

What is soft-QCD? - High Energy Physics

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