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The Underlying-Event Model in PYTHIA (6&8) - Peter Skands - Cern

The Underlying-Event Model in PYTHIA (6&8) - Peter Skands - Cern

The Underlying-Event Model in PYTHIA (6&8) - Peter Skands - Cern

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P. <strong>Skands</strong><br />

<strong>Underly<strong>in</strong>g</strong> <strong>Event</strong><br />

Compromise between Tevatron and LHC?<br />

“Perugia 2010” : Larger UE at Tevatron → better at LHC<br />

<strong>PYTHIA</strong> 6 @ 1.8 TeV<br />

<strong>PYTHIA</strong> 6<br />

Recommended:<br />

Perugia 2010<br />

(or dedicated LHC tunes AMBT1, Z1)<br />

For more on tun<strong>in</strong>g <strong>PYTHIA</strong> 6, see<br />

PS, arXiv:1005.3457<br />

(Plots from mcplots.cern.ch)<br />

<strong>PYTHIA</strong> 6 @ 7 TeV<br />

(next iteration: fusion between Perugia 2010 and AMBT1, Z1?)<br />

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