Generator

Details for Pythia 8.165 default vs. tune-4cx

pp/ppbar → Underlying Event


Observable Reference Energy χ2+5% (default) Δ χ2+5% (tune-4cx)
Away
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.098* +0.082 0.18*
ATLAS_2017_I1509919 13000 n/a - 0.073
Transverse
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.083* +0.077 0.16*
ATLAS_2017_I1509919 13000 n/a - 0.14
TransMAX
<pT> vs Nch
ATLAS_2017_I1509919 13000 n/a - 0.19
TransMIN
<pT> vs Nch
ATLAS_2017_I1509919 13000 n/a - 0.15
Toward
<pT> vs Nch
ATLAS_2010_I879407 [900..7000] 0.039* +0.071 0.11*
ATLAS_2017_I1509919 13000 n/a - 0.086
Away
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.48* +0.080 0.56*
ATLAS_2017_I1509919 13000 n/a - 0.26
Transverse
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.80* +0.50 1.3*
ATLAS_2017_I1509919 13000 n/a - 0.33
CDF_2010_I849042 1960 n/a - n/a
TransMAX
<pT> vs pTlead
ATLAS_2017_I1509919 13000 n/a - 0.41
TransMIN
<pT> vs pTlead
ATLAS_2017_I1509919 13000 n/a - 0.46
Toward
<pT> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.65* -0.26 0.39*
ATLAS_2017_I1509919 13000 n/a - 0.47
Transverse
Strange <N> vs pTlead
CMS_2012_PAS_QCD_11_010 7000 71 - n/a
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 n/a - n/a
Transverse
Nch
CMS_2011_I916908 [900..7000] 3.7* +1.4 5.1*
Δφ distributions
<Nch> vs Δφ
ATLAS_2010_I879407 [900..7000] 0.85* -0.090 0.76*
ATLAS_2017_I1509919 13000 n/a - n/a
CDF_2001_I564673 1800 n/a - n/a
Transverse
<Nch> vs ηlead
ATLAS_2010_I879407 7000 1.1 -0.35 0.75
Away
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.55* +0.32 0.87*
ATLAS_2017_I1509919 13000 n/a - 0.99
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
STAR_2009_UE_HELEN 200 n/a - n/a
Transverse
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.46* +0.35 0.81*
ATLAS_2017_I1509919 13000 n/a - 0.73
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
CMS_2011_I916908 [900..7000] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransAVE
<Nch> vs pTlead
CDF_2015_I1388868 [300..1960] n/a - n/a
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 n/a - n/a
TransDIF
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 n/a - 3.1
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransMAX
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 n/a - 0.92
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransMIN
<Nch> vs pTlead
ATLAS_2017_I1509919 13000 n/a - 0.89
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
Toward
<Nch> vs pTlead
ATLAS_2010_I879407 [900..7000] 0.54* +0.060 0.60*
ATLAS_2017_I1509919 13000 n/a - 1.3
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
pTlead
ATLAS_2017_I1509919 13000 n/a - 3.5
CMS_2011_I916908 [900..7000] n/a - n/a
Transverse
pT spectrum
CDF_2001_I564673 1800 n/a - n/a
Δφ distributions
<pT> vs Δφ
ATLAS_2010_I879407 [900..7000] 1.2* -0.100 1.1*
Transverse
σ(Nch) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.99* +0.41 1.4*
Transverse
σ(Σ(pT)) vs pTlead
ATLAS_2010_I879407 [900..7000] 1.6* +1.8 3.4*
Transverse
Σ(ET)
ATLAS_2012_I1183818 7000 1.8* -0.80 1.0*
Transverse
Σ(ET) vs η
ATLAS_2012_I1183818 7000 2.3 -0.50 1.8
Transverse
Scalar Σ(pT)
CMS_2011_I916908 [900..7000] 5.4* - n/a
Δφ distributions
Σ(pT) vs Δφ
ATLAS_2017_I1509919 13000 n/a - n/a
CDF_2001_I564673 1800 n/a - n/a
Transverse
Σ(pT) vs ηlead
ATLAS_2010_I879407 7000 1.2 -0.20 1.0
Away
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.79* -0.030 0.76*
ATLAS_2017_I1509919 13000 n/a - 0.86
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
Transverse
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.61* +0.59 1.2*
ATLAS_2017_I1509919 13000 n/a - 0.79
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a
CMS_2011_I916908 [900..7000] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
Transverse
Strange Σ(pT) vs pTlead
CMS_2012_PAS_QCD_11_010 7000 68 - n/a
TransAVE
Σ(pT) vs pTlead
CDF_2015_I1388868 [300..1960] n/a - n/a
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 n/a - n/a
TransDIF
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 n/a - 0.72
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransMAX
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 n/a - 0.75
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
TransMIN
Σ(pT) vs pTlead
ATLAS_2017_I1509919 13000 n/a - 0.95
CDF_2010_I849042 1960 n/a - n/a
CDF_2015_I1388868 [300..1960] n/a - n/a
CMS_2015_I1385107 2760 n/a - n/a
Toward
Σ(pT) vs pTlead
ATLAS_2010_I879407 [900..7000] 0.53* +0.100 0.63*
ATLAS_2017_I1509919 13000 n/a - 0.93
CDF_2001_I564673 1800 n/a - n/a
CDF_2010_I849042 1960 n/a - n/a

* several "n/a" histograms were excluded from the calculation



n/a indicates that the χ2 value is unavailable, typically due to mismatched binning between theoretical and MC histograms or other issues.



The page data is based on 364 histograms.