Detail for Pythia 6 (398:ICT9MC2) 6.428

Note: this view is still in a development stage. Exercise care and common sense when interpreting results.

Use this view to look for changes between generator versions (technical validation). For each version, it can also be used as a condensed summary of the overall quality of the description of the various categories of data (physics validation).

Numbers in the tables correspond to chi2 values. To make them more physically meaningful, the MC predictions are assigned a flat 5% 'theory uncertainty', as a baseline sanity limit for the achievable theoretical accuracy with present-day MC models. A few clear cases of GIGO are excluded, but some problematic cases remain. Thus, e.g., if a calculation returns a too small cross section for a dimensionful quantity, the corresponding chi2 value will be large, even though the shape of the distribution may be well described. It could be argued how this should be treated, how much uncertainty should be allowed for each observable, whether it is reasonable to include observables that a given model is not supposed to describe, etc. These are questions that we do not believe can be meaningfully (or reliably) addressed by a fully automated site containing tens of thousands of model/observable combinations. In the end, the interpretation of the information we display is up to you, the user.

← Select which generator / tune you want to see the validation view for, or go back to the normal mcplots view.

pp/ppbar → Underlying Event

Observable Cut Energy χ2
<pT> vs Nch ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
<pT> vs Nch ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
<pT> vs Nch ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
<pT> vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
<pT> vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
CDF 2010 1960
<pT> vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
Strange <N> vs pT1 CMS K0S 7000
CMS Λ 7000
Max(pT) vs pT1 CDF 2010 1960
Multiplicity Distributions CMS pT > 20 7000
CMS pT > 3 7000
CMS pT > 3 900
<Nch> vs Δφ ATLAS pTlead > 1 7000
ATLAS pTlead > 1 900
ATLAS pTlead > 1.5 900
ATLAS pTlead > 2 7000
ATLAS pTlead > 2 900
ATLAS pTlead > 2.5 900
ATLAS pTlead > 3 7000
ATLAS pTlead > 5 7000
CDF pTj > 2 1800
CDF pTj > 5 1800
CDF pTj > 30 1800
<Nch> vs η1 ATLAS pT > 0.1 7000
<Nch> vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
ATLAS pT > 0.1 7000
ATLAS pT > 0.1 900
CDF 18 < pT < 49 1800
CDF pT < 20 1800
CDF 2010 1960
STAR 200
<Nch> vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
ATLAS pT > 0.1 7000
ATLAS pT > 0.1 900
CDF 18 < pT < 49 1800
CDF pT < 20 1800
CDF 2010 1960
CMS NSD 7000
CMS NSD 900
CMS |eta|<2, pT>0.5 2760
<Nch> vs pT1 CMS |eta|<2, pT>0.5 2760
<Nch> vs pT1 CMS |eta|<2, pT>0.5 2760
<Nch> vs pT1 CMS |eta|<2, pT>0.5 2760
<Nch> vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
ATLAS pT > 0.1 7000
ATLAS pT > 0.1 900
CDF 18 < pT < 49 1800
CDF pT < 20 1800
CDF 2010 1960
pT Distributions CMS pT > 20 7000
CMS pT > 3 7000
CMS pT > 3 900
dNch/dpT CDF pTj > 2 1800
CDF pTj > 5 1800
CDF pTj > 30 1800
<pT> vs Δφ ATLAS pTlead > 1 7000
ATLAS pTlead > 1 900
ATLAS pTlead > 1.5 900
ATLAS pTlead > 2 7000
ATLAS pTlead > 2 900
ATLAS pTlead > 2.5 900
ATLAS pTlead > 3 7000
ATLAS pTlead > 5 7000
σ(Nch) vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
σ(Σ(pT)) vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
Σ(ET) ATLAS 0.0 < |η| < 0.8 7000
ATLAS 0.8 < |η| < 1.6 7000
ATLAS 1.6 < |η| < 2.4 7000
ATLAS 2.4 < |η| < 3.2 7000
ATLAS 3.2 < |η| < 4.0 7000
ATLAS 4.0 < |η| < 4.8 7000
Σ(ET) vs η ATLAS 7000
Σ(pT) CMS pT > 20 7000
CMS pT > 3 7000
CMS pT > 3 900
Σ(pT) vs Δφ CDF pTj > 2 1800
CDF pTj > 5 1800
CDF pTj > 30 1800
Σ(pT) vs η1 ATLAS pT > 0.1 7000
Σ(pT) vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
ATLAS pT > 0.1 7000
ATLAS pT > 0.1 900
CDF 18 < pT < 49 1800
CDF pT < 20 1800
CDF 2010 1960
Σ(pT) vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
ATLAS pT > 0.1 7000
ATLAS pT > 0.1 900
CDF 18 < pT < 49 1800
CDF pT < 20 1800
CDF 2010 1960
CMS NSD 7000
CMS NSD 900
CMS |eta|<2, pT>0.5 2760
Strange Σ(pT) vs pT1 CMS K0S 7000
CMS Λ 7000
Σ(pT) vs pT1 CMS |eta|<2, pT>0.5 2760
Σ(pT) vs pT1 CMS |eta|<2, pT>0.5 2760
Σ(pT) vs pT1 CMS |eta|<2, pT>0.5 2760
Σ(pT) vs pT1 ATLAS pT > 0.5 7000
ATLAS pT > 0.5 900
ATLAS pT > 0.1 7000
ATLAS pT > 0.1 900
CDF 18 < pT < 49 1800
CDF pT < 20 1800
CDF 2010 1960