Generator

Details for Pythia 8.303 default-CD vs. default-DL

pp/ppbar → Z (Drell-Yan)


Observable Reference Energy χ2+5% (default-CD) Δ χ2+5% (default-DL)
Underlying event
<Nch> vs pTZ
ATLAS_2019_I1736531 13000 1.1 +0.100 1.2*
Underlying event
<pT>
ATLAS_2019_I1736531 13000 2.4* +1.2 3.6*
<pT> vs Nch
CDF_2010_I849042 1960 2.0* +0.30 2.3*
Transverse
<pT> vs pTlead
CDF_2010_I849042 1960 5.9 +0.40 6.3
Toward
<pT> vs pTlead
CDF_2010_I849042 1960 5.5 -0.20 5.3
Underlying event
<pT> vs pTZ
ATLAS_2019_I1736531 13000 2.4 +2.5 4.9*
<pT>Z vs Nch
CDF_2010_I849042 1960 1.3 +0.80 2.1
Underlying event
Σ(pT) vs pTZ
ATLAS_2019_I1736531 13000 5.6 +2.3 7.9
Underlying event
pT spectrum
ATLAS_2019_I1736531 13000 1.8* +0.80 2.6*
Jet Substructure
Splitting scale d0
ATLAS_2017_I1589844 8000 24 -1.0 23
Jet Substructure
Splitting scale d1
ATLAS_2017_I1589844 8000 27 +1.0 28
Jet Substructure
Splitting scale d2
ATLAS_2017_I1589844 8000 28 -1.0 27
Jet Substructure
Splitting scale d3
ATLAS_2017_I1589844 8000 27 -2.0 25*
Jet Substructure
Splitting scale d4
ATLAS_2017_I1589844 8000 26 -1.0 25
Jet Substructure
Splitting scale d5
ATLAS_2017_I1589844 8000 25 -2.0 23*
Jet Substructure
Splitting scale d6
ATLAS_2017_I1589844 8000 24* -2.0 22*
Jet Substructure
Splitting scale d7
ATLAS_2017_I1589844 8000 23 -2.0 21*
Dilepton
Δη
ATLAS_2016_I1467454 8000 19 -1.0 18
Dilepton
m
ATLAS_2019_I1725190 13000 n/a - n/a
Dilepton
φ*η
CMS_2019_I1753680 13000 24 +10 34
CMS_2022_I2079374 13000 31 0 31
D0_2010_I871787 1960 1.7* -0.40 1.3*
LHCB_2012_I1208102 7000 10 -0.80 9.2
LHCB_2021_I1990313 13000 11* +4.0 15*
Dilepton
φ*η ratio
CMS_2022_I2079374 13000 0.49* +0.18 0.67*
ll.phiStar_norm
ATLAS_2019_I1768911 13000 0.97 -0.17 0.80
CMS_2019_I1753680 13000 0.72 +0.98 1.7
Dilepton
pT
LHCB_2021_I1990313 13000 10 +5.0 15
Dilepton
y
LHCB_2021_I1990313 13000 18 +5.0 23
Transverse
Max(pT) vs pTlead
CDF_2010_I849042 1960 10 +5.0 15
Toward
Max(pT) vs pTlead
CDF_2010_I849042 1960 11 +3.0 14
Underlying event
Nch
ATLAS_2019_I1736531 13000 2.0* -0.10 1.9*
Away
<Nch> vs pTlead
CDF_2010_I849042 1960 0.86 +0.080 0.94
Transverse
<Nch> vs pTlead
CDF_2010_I849042 1960 1.2 +0.30 1.5
nch-vs-pt-trnsDif
CDF_2010_I849042 1960 1.4 +1.3 2.7
TransMAX
<Nch> vs pTlead
CDF_2010_I849042 1960 1.4 +0.20 1.6
TransMIN
<Nch> vs pTlead
CDF_2010_I849042 1960 1.2 +1.2 2.4
Toward
<Nch> vs pTlead
CDF_2010_I849042 1960 3.3 -1.6 1.7
Jet Multiplicities
Jet multiplicity
CMS_EWK_10_012 7000 12 +6.0 18
Jet Multiplicities
Ratios of jet multiplicity
CMS_EWK_10_012 7000 4.2 +2.3 6.5
Underlying event
Scalar Σ(pT)
ATLAS_2019_I1736531 13000 2.5* +0.10 2.6*
Away
Σ(pT) vs pTlead
CDF_2010_I849042 1960 1.2 -0.22 0.98
Transverse
Σ(pT) vs pTlead
CDF_2010_I849042 1960 2.7 +4.9 7.6
sumpt-vs-pt-trnsDif
CDF_2010_I849042 1960 5.0 +10 15
TransMAX
Σ(pT) vs pTlead
CDF_2010_I849042 1960 3.4 +6.1 9.5
TransMIN
Σ(pT) vs pTlead
CDF_2010_I849042 1960 1.1 +9.9 11
Toward
Σ(pT) vs pTlead
CDF_2010_I849042 1960 7.7 -1.8 5.9
z.m
PHENIX_2019_I1672015 200 190,000,000 +67,000,000 250,000,000
pT Z
CDF_2000_I505738 1800 11 0 11
CDF_2012_I1124333 1960 11 0 11
CMS_2019_I1753680 13000 n/a - 23*
CMS_2022_I2079374 13000 24 -1.0 23
D0_2010_I856972 1960 3.2 0 3.2
PHENIX_2019_I1672015 200 96,000,000 +67,000,000 160,000,000
z.pt._z.pt
CMS_2022_I2079374 13000 0.92* +0.040 0.96*
z.pt_norm
ATLAS_2011_I917931 7000 0.67 +0.14 0.81
ATLAS_2019_I1768911 13000 n/a - n/a
CMS_2019_I1753680 13000 n/a - 0.75*
D0_2010_I856972 1960 1.4 +0.10 1.5
y Z
ATLAS_2016_I1467454 8000 19 0 19
CMS_2019_I1753680 13000 45 +11 56
LHCB_2012_I1208102 7000 13 0 13
z.y_norm
CMS_2019_I1753680 13000 0.51 +0.010 0.52

* 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 946 histograms.