Underlying Event : Δφ Distributions : <Nch> vs Δφ

Generator Group: General-Purpose MCs Soft-Inclusive MCs Alpgen Herwig7 Herwig++ Pythia 6 Pythia 8 Sherpa Vincia Epos Phojet MadGraph5 Custom
Subgroup: Alpgen vs GPMCs Alpgen vs Pythia 6

pp @ 7000 GeV

ppbar @ 1800 GeV

pp @ 900 GeV

ATLAS pTlead > 1.5

Plot of nch-vs-dphi in 900 GeV pp collisions

ATLAS pTlead > 2.5

Plot of nch-vs-dphi in 900 GeV pp collisions