Underlying Event : <Nch> vs Δφ

Generator Group: Main Herwig++ Pythia 6 Pythia 8 Sherpa Epos Phojet Custom
Subgroup: Default GPMCs Only LHC Tunes Tevatron Tunes Diffraction

pp @ 7000 GeV

ppbar @ 1800 GeV

pp @ 900 GeV